1

NISTIR 7501

NIST Intercomparison Exercise Program 

for Organic Contaminants in the Marine 

Environment:

Description and Results of 2007 Organic 

Intercomparison Exercises

Michele M. Schantz

Reenie M. Parris

Stephen A. Wise
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NISTIR 7501

NIST Intercomparison Program for 

Organic Contaminants in the

Marine Environment:

Description and Results of 2007

Organic Intercomparison Exercises

Michele M. Schantz, Reenie M. Parris, 

and Stephen A. Wise

Analytical Chemistry Division

National Institute of Standards and Technology

Gaithersburg, MD 20899-8392

June 2008

U.S. Department of Commerce

Carlos M. Gutierrez, Secretary

National Institute of Standards and Technology

 James M. Turner, Acting Director
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Table of Contents

Abstract.......................................................................................................................................7

Introduction.................................................................................................................................8

Sources and Preparation of Materials Used in 2007 Intercomparison Exercises ...........................9

Storage and Distribution of Materials..........................................................................................9

Evaluation of Exercise Results ..................................................................................................10

Establishment of the Assigned Values ...........................................................................10

Reported Results.......................................................................................................................11

Performance Scores...................................................................................................................11

Accuracy Assessment (z-score)......................................................................................12

Precision Assessment (p-score)......................................................................................12

Discussion.................................................................................................................................13

Acknowledgments.....................................................................................................................15

Disclaimer and References........................................................................................................15

Tables .......................................................................................................................................17

Table 1. Target analytes in NIST Intercomparison Exercise Program for 

Organic Contaminants in the Marine Environment .............................................19

Table 2. Mussel Tissue XIII (QA07TIS13): Laboratory means of three replicates and 

exercise assigned values - TEO, and PAHs.........................................................21

Table 3. Mussel Tissue XIII (QA07TIS13): Laboratory means of three replicates and 

exercise assigned values - Pesticides...................................................................22

Table 4. Mussel Tissue XIII (QA07TIS13): Laboratory means of three replicates 

and exercise assigned values - PCBs...................................................................23

Table 5. Mussel Tissue XIII (QA07TIS13): Laboratory means of three replicates 

and exercise assigned values - PBDEs................................................................24

Table 6. SRM 2977: Laboratory means of three replicates
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and target values - TEO and PAHs .....................................................................25

Table 7. SRM 2977: Laboratory means of three replicates 

and target values - Pesticides..............................................................................26

Table 8. SRM 2977: Laboratory means of three replicates 

and target values - PCBs.....................................................................................27

Table 9. SRM 2977: Laboratory means of three replicates 

and target values - PBDEs..................................................................................28

Table 10. Marine Sediment XIV (QA07SED14): Laboratory means of three replicates and 

exercise assigned values - Water, TOC, and PAHs .............................................29

Table 11. Marine Sediment XIV (QA07SED14): Laboratory means of three replicates and 

exercise assigned values - Pesticides...................................................................30

Table 12. Marine Sediment XIV (QA07SED14): Laboratory means of three replicates 

and exercise assigned values - PCBs...................................................................31

Table 13. Marine Sediment XIV (QA07SED14): Laboratory means of three replicates 

and exercise assigned values - PBDEs................................................................32

Table 14. SRM 1944: Laboratory means of three replicates

and target values - Water, TOC, and PAHs.........................................................33

Table 15. SRM 1944: Laboratory means of three replicates 

and target values - Pesticides..............................................................................34

Table 16. SRM 1944: Laboratory means of three replicates 

and target values - PCBs.....................................................................................35

Table 17. SRM 1944: Laboratory means of three replicates 

and target values - PBDEs..................................................................................36

Table 18. Mussel Tissue XIII (QA07TIS13): z-scores (25 %) by laboratory -TEO 

and PAHs...........................................................................................................37

Table 19. Mussel Tissue XIII (QA07TIS13): z-scores (25 %) by laboratory - Pesticides ....38

Table 20. Mussel Tissue XIII (QA07TIS13): z-scores (25 %) by laboratory - PCBs...........39

Table 21. Mussel Tissue XIII (QA07TIS13): z-scores (25 %) by laboratory - PBDEs ........40

Table 22. Marine Sediment XIV (QA07SED14): z-scores (25 %) by laboratory - PAHs, 

Water, and TOC .................................................................................................41
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Table 23. Marine Sediment XIV (QA07SED14): z-scores (25 %) by laboratory -

Pesticides ...........................................................................................................42

Table 24. Marine Sediment XIV (QA07SED14): z-scores (25 %) by laboratory - PCBs.....43

Table 25. Marine Sediment XIV(QA07SED14): z-scores (25 %) by laboratory - PBDEs...44

Table 26. Mussel Tissue XIII (QA07TIS13) and SRM 2977: RSDs for three replicates -

TEO and PAHs...................................................................................................45

Table 27. Mussel Tissue XIII (QA07TIS13) and SRM 2977: RSDs for three replicates -

Pesticides ...........................................................................................................47

Table 28. Mussel Tissue XIII (QA07TIS13) and SRM 2977: RSDs for three replicates -

PCBs..................................................................................................................49

Table 29. Mussel Tissue XIII (QA07TIS13) and SRM 2977: RSDs for three replicates -

PBDEs................................................................................................................51

Table 30. Marine Sediment XIV (QA07SED14) and SRM 1944: RSDs for three 

replicates - Water, TOC, and PAHs ....................................................................53

Table 31. Marine Sediment XIV (QA07SED14) and SRM 1944: RSDs for three 

replicates - Pesticides..........................................................................................56

Table 32. Marine Sediment XIV (QA07SED14) and SRM 1944: RSDs for three 

replicates - PCBs................................................................................................59

Table 33. Marine Sediment XIV (QA07SED14) and SRM 1944: RSDs for three 

replicates - PBDEs..............................................................................................62

Appendices

Appendix A: Description, Storage, Use, and Reporting Instructions

 for Mussel Tissue XIII (QA07TIS13).....................................................................................65

Appendix B: Description, Storage, Use, and Reporting Instructions

 for Marine Sediment XIV(QA07SED14)................................................................................71

Appendix C: Laboratory Notes Accompanying Data, Mussel Tissue XIII.................................77

Appendix D: Laboratory Notes Accompanying Data, Marine Sediment XIV............................80

Appendix E: Laboratory Methods Used, Mussel Tissue XIII....................................................84

Appendix F: Laboratory Methods Used, Marine Sediment XIV................................................92
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Appendix G: Charts of Mussel Tissue XIII and SRM 2977, Results by Analyte .....................100

Appendix H: Charts of Marine Sediment XIV and SRM 1944, Results by Analyte.................180

Appendix I: List of Laboratories Participating in 2007 Intercomparison Exercises ..................277
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Abstract

In support of marine monitoring measurement programs, the National Institute of Standards and 

Technology (NIST) conducts interlaboratory comparison exercises. The intercomparibility of data after 

participation in these exercises provides one mechanism for participating laboratories and/or 

monitoring programs to evaluate the quality and comparability of their performance in measuring 

selected organic contaminants in environmental samples. In this report, results of the 2007 exercises of 

the NIST Intercomparison Exercise Program for Organic Contaminants in the Marine Environment are 

described in which selected polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyl (PCB) 

congeners, chlorinated pesticides, and polybrominated diphenyl ether (PBDE) congeners were 

determined in Mussel Tissue XIII and Marine Sediment XIV exercise materials. The analytical 

methods used by each participating laboratory in this performance-based program are also summarized. 
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Introduction

The preparation and distribution of two materials, Mussel Tissue XIII (QA07TIS13) and Marine 

Sediment XIV (QA07SED14), used in interlaboratory comparison exercises in 2007 for the National 

Institute of Standards and Technology (NIST) Intercomparison Exercise Program for Organic 

Contaminants in the Marine Environment, and the results of these exercises are described in this report. 

The analytical methods used by each participating laboratory are also summarized. 

Tools and mechanisms for the assessment of data produced by laboratories providing environmental 

analyses are critical because decision-making based on inaccurate results or data of unknown quality 

can have significant economic and health consequences. NIST provides a variety of activities in 

support of environmental monitoring programs for organic contaminants. The largest of these 

programs was initiated and funded in part for 12 years (until 1999) by the National Oceanic and 

Atmospheric Administration (NOAA) National Status and Trends (NS&T) Marine Monitoring Program 

[1-3]. The Environmental Protection Agency (EPA) Environmental Monitoring and Assessment 

Program (EMAP) also participated in the NIST/NOAA NS&T effort for a number of years. Private 

sector and other laboratories that could not be accommodated under the NOAA, EPA, and NIST

funding have reimbursed NIST for participation costs and have participated in these exercises and 

workshops as part of the NIST Intercomparison Exercise Program for Organic Contaminants in the 

Marine Environment. NIST is now continuing this program on a pay-to-participate basis. Through this 

program, NIST provides mechanisms for assessing the interlaboratory and temporal comparability of 

data with the goal of improving measurements for the monitoring of organic contaminants such as 

polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyl (PCB) congeners, chlorinated 

pesticides, and, as of the 2005 exercise, polybrominated diphenyl ether (PBDE) congeners in bivalve,

sediment, and fish samples. This program includes the development of improved analytical methods, 

production of needed NIST Standard Reference Materials (SRMs) and other control materials, conduct 

of annual interlaboratory comparison exercises, and the coordination of workshops to discuss the 

results of these exercises and to provide a forum for cooperative problem-solving efforts by 

participants. Current participants represent multi-laboratory monitoring programs as well as a number 

of individual programs, and include federal, state/municipal, university/college, private sector, and 

international laboratories. In this performance-based program, each participating laboratory uses its 

current methods for analysis of similar materials for its program customers. 

For the annual intercomparison exercises, samples of two natural-matrix, homogeneous materials that 

are derived from the marine environment and that have not been fortified with any of the target analytes 

are analyzed by the participating laboratories. Typical materials, such as mussel or fish tissue 

homogenates or wetted marine sediment, have levels of target analytes in the 1 ng/g to 15,000 ng/g 

range. The target analytes are listed in Table 1. 

Numerical indices, z- and p-scores, are used to assess and track laboratory performance for accuracy 

and precision, respectively, and to provide a mechanism for assessing the comparability of data being 

produced by the participating laboratories for over 75 target analytes, total organic carbon (TOC), 

percent total extractable organics (TEO), and percent moisture. 
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Sources and Preparation of Materials Used in 2007 Intercomparison Exercises

Mussel Tissue XIII. Mussel Tissue XIII was prepared by mixing two previously freeze-dried mussel 

tissue materials, SRM 2977 Mussel Tissue (Organic Contaminants and Trace Elements) and SRM 2978 

Mussel Tissue (Organic Contaminants – Raritan Bay, New Jersey). The mixed material was then 

bottled with approximately 6 g per bottle. The homogeneity of the material was tested by taking 

duplicate subsamples at differing sample sizes from 0.5 g to 4 g from six bottles. The bottles were 

selected using a stratified random sampling across the bottling sequence. The analysis of these 

subsamples did not indicate significant heterogeneity with sample sizes > 0.5 g. The degree of 

heterogeniety of the material was overshadowed by the uncertainty in the analytical techniques used

(approximately 3%). Each participant received one bottle. This freeze-dried mussel tissue 

homogenate material had not been enriched or spiked. 

Marine Sediment XIV. Marine Sediment XIV was prepared by mixing a subsample of the fines 

remaining from the preparation of SRM 1944 New York/New Jersey Waterway Sediment. The 

sediment was bottled with approximately 10 g (exact mass known) of sediment per bottle. The 

homogeneity of the dried sediment was tested by analyzing 18 samples, six samples of differing sample 

masses between 0.5 g and 2 g from each of three bottles chosen from the beginning, middle, and end of 

the bottling sequence. As for the mussel tissue, the sediment was homogeneous (within 2%) at these 

sample sizes. 

The Marine Sediment XIV material was issued as a wet sediment to more closely match the matrix of 

wet sediments routinely analyzed by the laboratories. A calibrated toploader balance (resolution of 

0.01 g) was used for weighing the sediment and water. For each sample, 10.00 g of sediment (see 

above) was weighed into a tared 2-oz, wide-mouth bottle. The bottle was then capped and stored in the 

dark at room temperature. Approximately four days before samples were to be shipped to laboratories

participating in the intercomparison exercise, 9.0 g of HPLC-grade water were added by pipet to each 

tared bottle of sediment. The masses of sediment and water in each bottle were recorded. Each sample 

was tilted by hand until no dry sediment was visible. Only a very small amount of water was observed 

on the top of the wet sediment. After being held 24 h at room temperature (in the dark), followed by 

approximately 4 h at -20 C, each bottle of material was stored at -80 C until shipped. The bottles 

were never inverted until the wet samples had been frozen in the bottom of the bottles. The material 

was not enriched or spiked with any of the analytes of interest in this intercomparison exercise. 

Storage and Distribution of Materials

Mussel Tissue XIII material was stored at room temperature, and Marine Sediment XIV material was 

stored at -80 C until shipped via overnight delivery to participating laboratories. Instructions for the 

storage and use of the exercise material and a diskette with files for electronic submission of data were 

included with each set of material shipped. These instructions are reproduced in Appendices A and B. 

Each laboratory participating in these intercomparison exercises was sent the following by overnight

delivery:

Exercise 1: Mussel Tissue XIII (QA07TIS13)

One bottle of Mussel Tissue XIII material (shipped on dry ice)
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Description of the materials and storage/use/reporting instructions for

 the exercise (see Appendix A.)

Files for the reporting of results were sent as an e-mail attachment.

Exercise 2: Marine Sediment XIV (QA07SED14)

Three bottles of Marine Sediment XIV material (shipped on dry ice)

Description of the materials and storage/use/reporting instructions for

 the exercise (see Appendix B.)

Files for the reporting of results were sent as an e-mail attachment.

In the an e-mail message sent notifying the participants of the sample shipment, each participant was 

asked to analyze each of three replicate samples (three from one bottle for the mussel tissue and one 

from each jar for the sediment) to provide a more realistic assessment of laboratory precision and, if 

possible, to concurrently analyze the NIST SRM 2977 Mussel Tissue (Organic Contaminants and Trace 

Elements) [4] with Mussel Tissue XIII and NIST SRM 1944 New York/New Jersey Waterway 

Sediment [5] with Marine Sediment XIV. 

Evaluation of Exercise Results

Establishment of the Assigned Values

The following guidelines were used by the NIST exercise coordinators for the establishment of the 

exercise "Assigned Values" for these two exercises. Each laboratory’s performance on concurrent 

Standard Reference Material (SRM) analyses was used to determine if that laboratory’s results would 

be eligible for inclusion in the calculation of the exercise assigned value for the unknown material for a 

particular analyte. The results reported for the unknown materials from laboratories that did not report 

results for the SRMs were not used in these calculations. After the exercise assigned values, standard 

deviations, and 95% confidence limits had been calculated, all reported results for the Mussel Tissue 

XIII and Marine Sediment XIV materials were evaluated relative to the exercise assigned values.

Laboratory data submission: Each participating laboratory was to submit data from three replicate 

determinations of the “unknown” materials (Mussel Tissue XIII and Marine Sediment XIV) and was 

requested to report results of concurrent analyses of NIST SRM 2977, a freeze-dried mussel tissue 

SRM, and SRM 1944, a marine sediment SRM. Laboratories were requested to report these results to 

three significant figures and to provide brief descriptions of their extraction, cleanup, and analytical 

procedures. 

Determination of laboratory analyte means: For each laboratory, the laboratory analyte mean of the 

three sample results (S1, S2, and S3) was calculated for each analyte. Non-numerical data were treated 

as follows: A mean "<value" was used when three "<values" were reported; NA (not 

analyzed/determined) was used for three reported NA's; and, if the reported results were of mixed type, 

e.g., S1 and S2 were numerical values and S3 was reported as “<value”, the two similar "types" were 

used to either determine the mean or to set a non-numerical descriptor.

Determination of assigned values: The assigned values are the means of the acceptable data as defined 

here. For a particular analyte, the performance on the reference material was deemed acceptable for the 

purpose of this exercise if the laboratory result was within 30 % of the upper and lower limits of the 
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confidence interval for analytes listed in the Certificates of Analysis for SRM 2977 and SRM 1944. 

For each analyte of interest for which a certified value is not provided in these materials, a “target” 

concentration and the associated uncertainty were calculated. The targets for SRM 2977 were based on 

reference concentrations for SRM 2977. The targets for SRM 1944 were based on reference 

concentrations for SRM 1944 and for the PBDEs on an interlaboratory study coordinated in 2004 

specifically for the determination of PBDE congeners in sediment [6]. Laboratory results within target 

upper and lower limits, typically 30 % to 40 %, of these concentrations were deemed acceptable for this 

exercise. If a laboratory demonstrated acceptable performance on a particular analyte in the reference 

material, that laboratory’s results for that analyte in the corresponding “unknown” exercise material 

was then used in the calculation of the analyte’s exercise assigned value, unless it was deemed an 

outlier. For evaluation of potential outliers, statistical tests and expert analyst judgement were used 

after viewing both normal and log-normal plots of the data. This judgement utilized knowledge of 

potential coeluters based on the laboratory's reported methods. In instances for which the analyte 

concentration was below the detection limit of most participating laboratories, no exercise assigned

value was calculated. In data sets where a number of laboratories report results as "not detected" at 

various detection limits, there is no consensus as to what numerical value should be assigned to these 

results in the computation of grand means, etc.; e.g., "0,” half Detection Limit (DL), and the DL value 

itself have all been used and the choice is influenced by the particular data set.

Reported Results

Laboratories were assigned numerical identification codes in order of receipt of data with the exception 

of NIST, which is Laboratory 1 in these exercises. A laboratory was assigned the same code for each 

material. The laboratory mean replicate data are shown in Tables 2 to 5 and Tables 6 to 9 for the 

Mussel Tissue XIII and SRM 2977, respectively, and in Tables 10 to 13 and 14 to 17 for Marine 

Sediment XIV and SRM 1944, respectively. Included in the means tables for Mussel Tissue XIII and 

Marine Sediment XIV are the exercise assigned values, the standard deviation of the assigned value, the 

percent relative standard deviation (% RSD), and the calculated 95 % confidence limit of the assigned 

value for the percent water (sediment), percent total extractable organics, TEO (mussel tissue), total 

organic carbon, TOC (sediment), PAHs, chlorinated pesticides, PCB congeners, and PBDE congeners. 

Notes included by a laboratory with its data are listed in Appendices C (Mussel Tissue XIII) and D 

(Marine Sediment XIV). Summaries of the methods used by each laboratory are in Appendices E 

(Mussel Tissue XIII) and F (Marine Sediment XIV). Tables 6 through 9 and 14 through 17 summarize 

the data received from the participating laboratories for SRM 2977 and 1944, respectively. The 

certified and target values for the analytes of interest are also shown in these tables. 

In Appendices G (Mussel Tissue XIII) and H (Marine Sediment XIV), charts of the mean numerical 

results reported by each laboratory for each analyte are shown for the exercise material and the 

corresponding reference material. 

Performance Scores

The exercise coordinators recognize that different programs have different data quality needs. The 

acceptability of the results submitted by a particular laboratory will be decided by the individual 

program(s) for which the laboratory provides data. Typically, the program will use these exercise 

results in conjunction with the laboratory's performance in the analysis of certified reference materials 

and/or control materials, and of other quality assurance samples. These exercise results are exhibited in 
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a number of ways in this report to facilitate their use by these programs in their acceptability 

assessments. 

IUPAC guidelines [7] describe the use of z-scores and p-scores for assessment of accuracy and 

precision in intercomparison exercises such as those described in this report. These indices assess the 

difference between the result of the laboratory and the exercise assigned value and can be used, with 

caution, to compare performance on different analytes and on different materials.

Accuracy Assessment (z-score)

z-score = (bias estimate)/(performance criterion) = (x - X)/ σ

where x is the individual laboratory result, X is the "Exercise Assigned Value,” and σ is the target value 

for standard deviation.

As described in the IUPAC guidelines, the choice of σ is dependent upon data quality objectives of a

particular program. It can be "fixed" and arrived at by perception, prescription, or reference to 

validated methodology (e.g., σ = 0.025 X; X is the exercise assigned value,), or it can be an estimate of 

the actual variation (e.g., the calculated sample standard deviation, s, from the exercise data). The 

"fixed" performance criterion is more useful in the comparison of a laboratory's performance on 

different materials while the use of the actual variation may be more useful within a given exercise, for 

example, if the determination of a particular analyte is exceptionally problematic.

 

We have calculated and reported z-scores using the fixed performance criterion for each analyte for 

each laboratory. At a previous workshop, it was decided to use "25 % of the exercise assigned value" 

as the fixed target value for standard deviation for this program. The z-scores calculated for these 

exercises can thus be interpreted as shown in the following examples:

z-score (25 % X):

+1  laboratory result is 25 % higher than the assigned value

-2  laboratory result is 50 % lower than the assigned value.

From a scientific point of view, IUPAC does not recommend the classification of z-scores but allows 

that a common classification is:

z  2 Satisfactory

2 < z < 3 Questionable

z  3 Unsatisfactory.

Tables 18 through 21 summarize the z-scores (25 %) for each laboratory for each reported analyte in 

Mussel Tissue XIII while Tables 22 through 25 summarize the z-scores (25 %) for each laboratory for 

each reported analyte in Marine Sediment XIV. 

Precision Assessment (p-score)

p-score = σlab / σtarget
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Prior to the 1994 exercises, participating laboratories typically analyzed the three replicate samples for 

an exercise with the same sample set, i.e., one set of samples with the same blank, calibration curve, 

etc. applicable for each. Since the repeatability for replicates within a set generally shows better 

reproducibility than for replicates across different sets, this does not result in data that are very useful 

for realistic uncertainty assessment. Since 1994, laboratories have been requested to process each 

replicate in a different sample set for uncertainty assessment. For the calculation of p-scores for this 

program, the σ values used are coefficients of variation (CV calculated as relative standard deviations) 

with the current target σ (CV) for the three replicates being 15 %.

Tables 26 through 29 summarize the relative standard deviations (RSDs) calculated from the three 

concentrations reported by the laboratory for each analyte quantified in Mussel Tissue XIII and SRM 

2977 while Tables 30 through 33 summarize the RSDs calculated for each reported analyte by 

laboratory in Marine Sediment XIV and SRM 1944. To calculate the p-scores (15 %), divide the RSDs 

reported in the tables by 15%. If a different criterion is chosen, follow the same procedure, and divide 

the RSD by that criterion.

 

Discussion

Laboratories were requested to quantify 26 PAHs, 25 chlorinated pesticides, 25 PCB congeners, and 34

PBDE congeners in this year’s exercises. A total of 13 sets of results were submitted for Mussel Tissue 

XIII, and 16 sets of results (2 sets from laboratory 14) were submitted for Marine Sediment XIV. In the 

mussel tissue exercise, one laboratory (6) reported data for SRM 2978 Mussel Tissue as the control 

material for the pesticides. Their data were evaluated based on the certified and target values for this

SRM (see Evaluation of Exercise Results above). 

The concentrations of the PAHs of interest in Mussel Tissue XIII range from 7 ng/g dry-mass basis to 

200 ng/g dry-mass basis, the concentrations of the pesticides of interest range from below the detection 

limits of the methods used to 24 ng/g dry-mass basis, and the concentrations of the PCB congeners 

range from 1 ng/g dry-mass basis to 30 ng/g dry-mass basis. For the chlorinated pesticides, 11 of the 

25 compounds were above the detection limits for the majority of the laboratories reporting, while 22 of 

the 25 PCB congeners were above the detection limits for the majority of the laboratories. There was 

poor agreement among the laboratories for total extractable organics (TEO), ranging from 2 % to 9 % 

even though the laboratories are reporting using similar methods for determining the TEOs (Appendix 

E). TEO is sometimes referred to as percent lipid but is typically determined by taking a known portion 

of the extract and evaporating to dryness and then weighing the dried residue. As one can imagine, the 

TEO value is then dependent on the extraction method and solvent used and the drying method used. It 

is, therefore typical to see the TEO values vary greatly from lab to lab particularly for relatively lean 

(non-fatty) materials. 

The z-scores for the PAHs, pesticides, PCB congeners, and PBDE congeners in Mussel Tissue XIII 

based on 25 % of the exercise assigned value are summarized in Tables 18 to 21, respectively. The 

majority of the z-scores based on 25 % are within ± 2 (± 50 % of the exercise assigned value). The 

RSDs for Mussel Tissue XIII and SRM 2977 are summarized in Tables 26 to 29 for the PAHs, 

pesticides, PCB congeners, and PBDE congeners, respectively. Only four laboratories reported results 

for a limited number of PBDE congeners with most of the data reported being less than the detection 

limit. 
14

The PAH concentrations in Marine Sediment XIV range from 50 ng/g dry-mass basis to 3200 ng/g drymass basis. The pesticide concentrations range from below the detection limits of the methods used to 

485 ng/g dry-mass basis, while the PCB concentrations range from 4 ng/g dry-mass basis to 72 ng/g 

dry-mass basis. There was relatively good agreement among the laboratories for percent water in the 

wet sediment with the exception of one laboratory reporting 36% compared to the 47% added. Only 

four laboratories returned data for the TOC with the values ranging from 2.7 % to 4.4 %. 

The z-scores for the PAHs, pesticides, PCB congeners, and PBDE congeners based on 25 % of the 

exercise assigned value are summarized for Marine Sediment XIV in Tables 22 to 25, respectively. In 

general, the z-scores based on 25 % were within ± 2 (± 50 % of the exercise assigned value) for Marine 

Sediment XIV. The RSDs for the Marine Sediment XIV and SRM 1944 are summarized in Tables 30 

to 33 for the PAHs, pesticides, PCB congeners, and PBDE congeners, respectively. Only six

laboratories reported data for the PBDE congeners. 

As in the past exercises, a variety of methods were used for extraction, extract cleanup, and analysis. 

These are summarized in Appendix E for the mussel tissue and Appendix F for the marine sediment. 

For the PAHs in the mussel tissue and marine sediment, all of the laboratories used gas chromatography 

with mass spectrometry (GC/MS). For the chlorinated analytes in the mussel tissue, laboratories 6, 11, 

12 (for the PCBs), and 14 specified the use of high-resolution MS, and laboratories 5, 7, 8, 9, 10, 12 

(for the pesticides), and 15 used GC-ECD. For the PBDE congeners, laboratories 6, 11, and 12 used 

GC with high-resolution MS while laboratory 1a used GC with low-resolution MS in the negative 

chemical ionization mode and laboratories 3 and 13 used GC with low-resolution MS in the electron 

ionization mode. There was no obvious correlation between z-scores and method used. 

For the 2007 exercises, the data provided in the various figures and tables of this report can be used for 

assessing the comparability of results of over 100 analytes of interest in this program and the 

performance of individual laboratories. In these exercises, interlaboratory variability is a greater 

contributor to measurement incomparability than intralaboratory variability. 

Subgroups of the exercise participants have demonstrated comparability of results for many analytes 

within the 0 to 2 z-range based on use of 25 % of the exercise assigned concentration as the 

performance criterion. This implies that this subgroup can distinguish between two samples that have 

an analyte concentration difference of 100 %. The reported accuracy and reproducibility indices (zand p-scores, respectively) can be easily converted to conform to the acceptability requirements of a

particular program. For example, a z-score based on 25 % can be multiplied by two to convert to a zscore based on 12.5 % of the analyte concentration.

It is important to evaluate the non-quantitative results reported by each laboratory as well. Although 

these results are not easily presented or numerically evaluated, they are included in the various tables of 

this report that list the mean and individual results of the laboratories. The laboratory and its data users 

should closely examine these non-quantitative results. Decisions based on false negative or false 

positive results from a laboratory can lead to significant environmental and/or economic consequences. 

Some laboratories reported detection limits in these “real” matrix materials that may be too high for the 

data quality needs of their program(s), and these issues should be assessed as well.

Intercomparison exercises provide an important mechanism for assessing the comparability, accuracy, 

precision, and reproducibility of data being produced by the participating laboratories. Exercise 
15

materials similar in matrix, form, and analyte concentration to typical samples routinely analyzed by 

the laboratories are most useful for demonstrating the level of comparability and for revealing potential 

problem areas. 

For the determination of the target compounds in these complex marine matrices with relatively low 

concentrations of these analytes, the levels of bias and reproducibility of many of the participating 

laboratories meet their current acceptability requirements; however, there is certainly room for 

improvement. Minimizing the among-laboratory biases so that the analytical variability is significantly 

less than the field sampling variability should be an achievable goal.

Acknowledgments

The time and effort of the analysts and management of the participating laboratories and the assistance 

of the NIST Standard Reference Materials Program with the procurement and preparation of the 

exercise materials are gratefully acknowledged. 

Disclaimer

Certain commercial equipment, instruments, or materials are identified in this report to specify 

adequately the experimental procedure. Such identification does not imply recommendation or 

endorsement by the National Institute of Standards and Technology, nor does it imply that the materials 

or equipment identified are the best available for the purpose.

References

1. A. Y. Cantillo and R. M. Parris, “Evaluation of Trace Organic NOAA Status and Trends 

Quality Assurance Project Performance,” in Quality Assurance for Analytical Laboratories, M. 

Parkany (ed.), Royal Society of Chemistry, Spec. Publ. No. 130 (1993).

2. A. Y. Cantillo and R. M. Parris, National Status and Trends Program Quality Assurance Project: 

Trace Organic Intercomparison Exercise Results 1986-1990, NOAA Tech. Memo. NOS/ORCA 

69, Silver Spring, MD (1994).

3. A. Y. Cantillo, NS&T Quality Assurance Project Intercomparison Exercise Results 1991-1993, 

NOAA Tech. Memo. NOS/ORCA 79, Silver Spring, MD (1995).

4 Certificate of Analysis for Standard Reference Material (SRM) 2977 Mussel Tissue (Organic 

Contaminants and Trace Elements), National Institute of Standards and Technology (NIST), 

Gaithersburg, MD, 2000. https://srmors.nist.gov/view_detail.cfm?srm=2977

5. Certificate of Analysis for Standard Reference Material (SRM) 1944 New York/New Jersey 

Waterway Sediment, National Institute of Standards and Technology (NIST), Gaithersburg, 

MD, 1999. https://srmors.nist.gov/view_detail.cfm?srm=1944
16

6. Stapleton, H.M., Keller, J.M., Schantz, M.M., Kucklick, J.R., and Wise, S.A., NIST 

Intercomparison Exercise Program for Polybrominated Diphenyl Ethers (PBDEs) in Marine 

Sediment: Description and Results of the 2004 Intercomparison Exercise, NISTIR 7278, 

Gaithersburg, MD (2005).

7. IUPAC “The International Harmonized Protocol for the Proficiency Testing of (Chemical) 

Analytical Laboratories,” Pure Appl. Chem. 65 (9), 2123-2144 (1993).
17

List of Tables

Table 1. Target Analytes in NIST Intercomparison Exercise Program for Organic Contaminants in 

the Marine Environment.

Table 2. Mussel Tissue XIII (QA07TIS13): Laboratory means of three replicates and exercise 

assigned values – TEO and PAHs

Table 3. Mussel Tissue XIII (QA07TIS13): Laboratory means of three replicates and exercise 

assigned values – Pesticides

Table 4. Mussel Tissue XIII (QA07TIS13): Laboratory means of three replicates and exercise 

assigned values – PCBs.

Table 5. Mussel Tissue XIII (QA07TIS13): Laboratory means of three replicates and exercise 

assigned values – PBDEs.

Table 6. SRM 2977: Laboratory means of three replicates and target values – TEO and PAHs.

Table 7. SRM 2977: Laboratory means of three replicates and target values – Pesticides.

Table 8. SRM 2977: Laboratory means of three replicates and target values – PCBs.

Table 9. SRM 2977: Laboratory means of three replicates and target values – PBDEs

Table 10. Marine Sediment XIV (QA07SED14): Laboratory means of three replicates and exercise 

assigned values –Water, TOC, and PAHs

Table 11. Marine Sediment XIV (QA07SED14): Laboratory means of three replicates and exercise 

assigned values – Pesticides

Table 12. Marine Sediment XIV (QA07SED14): Laboratory means of three replicates and exercise 

assigned values – PCBs

Table 13. Marine Sediment XIV (QA07SED14): Laboratory means of three replicates and exercise 

assigned values – PBDEs

Table 14. SRM 1944: Laboratory means of three replicates and target values – Water, TOC, and 

PAHs.

Table 15. SRM 1944: Laboratory means of three replicates and target values – Pesticides.

Table 16. SRM 1944: Laboratory means of three replicates and target values – PCBs.

Table 17. SRM 1944: Laboratory means of three replicates and target values – PBDEs.
18

Table 18. Mussel Tissue XIII (QA07TIS13): z-scores (25 %) by laboratory – TEO and PAHs

Table 19. Mussel Tissue XIII (QA07TIS13): z-scores (25 %) by laboratory – Pesticides

Table 20. Mussel Tissue XIII (QA07TIS13): z-scores (25 %) by laboratory – PCBs

Table 21. Mussel Tissue XIII (QA07TIS13): z-scores (25 %) by laboratory – PBDEs

Table 22. Marine Sediment XIV (QA07SED14): z-scores (25 %) by laboratory – PAHs, Water, and 

TOC

Table 23. Marine Sediment XIV (QA07SED14): z-scores (25 %) by laboratory – Pesticides

Table 24. Marine Sediment XIV (QA07SED14): z-scores (25 %) by laboratory – PCBs

Table 25. Marine Sediment XIV (QA07SED14): z-scores (25 %) by laboratory – PBDEs

Table 26. Mussel Tissue XIII and SRM 2977: RSDs for three replicates – TEO and PAHs

Table 27. Mussel Tissue XIII and SRM 2977: RSDs for three replicates – Pesticides

Table 28. Mussel Tissue XIII and SRM 2977: RSDs for three replicates – PCBs

Table 29. Mussel Tissue XIII and SRM 2977: RSDs for three replicates – PBDEs

Table 30. Marine Sediment XIV and SRM 1944: RSDs for three replicates – Water, TOC, and PAHs

Table 31. Marine Sediment XIV and SRM 1944: RSDs for three replicates – Pesticides

Table 32. Marine Sediment XIV and SRM 1944: RSDs for three replicates – PCBs

Table 33. Marine Sediment XIV and SRM 1944: RSDs for three replicates – PBDEs
19

Table 1. Target Analytes in NIST Intercomparison Exercise Program for Organic 

Contaminants in the Marine Environment

Chlorinated Pesticides

hexachlorobenzene 2,4'-DDE 

alpha-HCH (alpha-BHC) 4,4'-DDE

gamma-HCH (gamma-BHC, Lindane) 2,4'-DDD 

beta-HCH 4,4'-DDD

heptachlor 2,4'-DDT

heptachlor epoxide 4,4'-DDT

cis-chlordane (alpha-chlordane) aldrin

trans-chlordane (gamma-chlordane) dieldrin

oxychlordane endrin

cis-nonachlor endosulfan sulfate

trans-nonachlor endosulfan I

mirex endosulfan II

chlorpyrifos

Polychlorinated Biphenyl Congeners

PCB No. Compound Name

8 2,4'-dichlorobiphenyl

18 2,2',5-trichlorobiphenyl

28 2,4,4'-trichlorobiphenyl

31 2,4',5-trichlorobiphenyl

44 2,2',3,5'-tetrachlorobiphenyl

49 2,2',4,5'-tetrachlorobiphenyl

52 2,2',5,5'-tetrachlorobiphenyl

66 2,3',4,4'-tetrachlorobiphenyl

95 2,2',3,5',6-pentachlorobiphenyl

99 2,2',4,4',5-pentachlorobiphenyl

101 2,2',4,5,5'-pentachlorobiphenyl

105 2,3,3',4,4'-pentachlorobiphenyl

118 2,3',4,4',5-pentachlorobiphenyl

128 2,2',3,3',4,4'-hexachlorobiphenyl

138 2,2',3,4,4',5'-hexachlorobiphenyl

149 2,2',3,4',5',6-hexachlorobiphenyl

153 2,2',4,4',5,5'-hexachlorobiphenyl

156 2,3,3',4,4',5-hexachlorobiphenyl

170 2,2',3,3',4,4',5-heptachlorobiphenyl

180 2,2',3,4,4',5,5'-heptachlorobiphenyl

187 2,2',3,4',5,5',6-heptachlorobiphenyl

194 2,2',3,3',4,4',5,5'-octachlorobiphenyl

195 2,2',3,3',4,4',5,6-octachlorobiphenyl

206 2,2',3,3',4,4',5,5',6-nonachlorobiphenyl

209 decachlorobiphenyl
20

Table 1. (continued)

Polycyclic aromatic hydrocarbons (PAH)

naphthalene benz[a]anthracene

2-methylnaphthalene chrysene

1-methylnaphthalene triphenylene

biphenyl benzo[b]fluoranthene

2,6-dimethylnaphthalene benzo[j]fluoranthene

acenaphthylene benzo[k]fluoranthene

acenaphthene benzo[e]pyrene

1,6,7-trimethylnaphthalene benzo[a]pyrene

fluorene perylene

phenanthrene indeno[1,2,3-cd]pyrene

anthracene dibenz[a,h]anthracene

1-methylphenanthrene benzo[ghi]perylene 

fluoranthene 

pyrene

Polybrominated diphenyl ethers (PBDEs)

BDE 15 (4,4’-dibromo-) BDE 138 (2,2’,3,4,4’,5’-hexabromo-)

BDE 17 (2,2’,4-tribromo-) BDE 153 (2,2’,4,4’,5,5’-hexabromo-)

BDE 25 (2,3’,4-tribromo-) BDE 154 (2,2’,4,4’,5,6’-hexabromo-)

BDE 28 (2,4,4’-tribromo-) BDE 155 (2,2’,4,4’,6,6’-hexabromo-)

BDE 30 (2,4,6-tribromo-) BDE 156 (2,3,3’,4,4’,5-hexabromo-)

BDE 33 (2’,3,4-tribromo-) BDE 181 (2,2’,3,4,4’,5,6-heptabromo-)

BDE 47 (2,2’,4,4’-tetrabromo-) BDE 183 (2,2’,3,4,4’,5’,6-heptabromo-)

BDE 49 (2,2’,4,5’-tetrabromo-) BDE 190 (2,3,3’,4,4’,5,6-heptabromo-)

BDE 66 (2,3’,4,4’-tetrabromo-) BDE 191 (2,3,3’,4,4’,5,6’-heptabromo-)

BDE 71 (2,3’,4’,6-tetrabromo-) BDE 196 (2,2’,3,3’,4,4’,5,6’-octabromo-)

BDE 75 (2,4,4’,6-tetrabromo-) BDE 197 (2,2’,3,3’,4,4’,6,6’-octabbromo-)

BDE 85 (2,2’,3,4,4’-pentabromo-) BDE 203 (2,2’,3,4,4’,5,5’,6-octabromo-)

BDE 99 (2,2’,4,4’,5-pentabromo-) BDE 205 (2,3,3’,4,4’,5,5’,6-octabromo-)

BDE 100 (2,2’,4,4’,6-pentabromo-) BDE 206 (2,2’,3,3’,4,4’,5,6,6’-nonabromo-)

BDE 116 (2,3,4,5,6-pentabromo-) BDE 207 (2,2’3,3’,4,4’,5,6,6’-nonabromo-)

BDE 118 (2,3’,4,4’,5-pentabromo-) BDE 208 (2,2’,3,3’,4,5,5’,6,6’-nonabromo-)

BDE 119 (2,3’,4,4’,6-pentabromo-) BDE 209 (decabromo-)
21

Table 2. Mussel TissueXIII (QA07TIS13): Laboratory means of three replicates and exercise assigned values - TEO and PAHs 

 (reported as if three figures were significant)

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15 Value s %RSD

TEO (percent) 6.33 6.22 NA 6.09 NA 1.99 2.90 9.14 NA 9.39 6.88 2.85 2.50 no target

PAHs (ng/g dry mass) Exercise Assigned

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15 Value s %RSD

naphthalene 104 96.9 37.9 NA 128 40.9 142 82.3 177 254 92.0 88.9 57.3 80.9 30.1 37.1

2-methylnaphthalene 64.5 70.6 27.3 NA 58.2 31.8 54.6 47.8 73.8 NA <75.1 55.2 40.8 49.5 15.4 31.1

1-methylnaphthalene 80.9 83.7 26.7 NA 79.1 24.5 57.8 66.9 78.8 NA 78.6 41.9 29.8 56.9 25.7 45.2

biphenyl 6.69 6.86 3.85 NA 6.60 6.99 NA 4.70 <667 NA <23.9 11.27 <27.0 6.71 2.35 35.0

2,6-dimethylnaphthalene 20.4 20.9 38.0 NA 19.5 14.5 NA 14.0 NA NA <51.9 22.9 <27.0 21.4 8.0 37.4

acenaphthylene 6.90 4.89 3.92 NA 8.37 7.12 <40 8.03 15.6 5.16 <21.1 7.01 <27.0 6.61 1.62 24.6

acenaphthene 25.1 24.8 9.91 NA 25.1 11.8 <40 16.0 <38.0 42.8 <61.0 13.4 <27.0 18.0 6.8 37.6

1,6,7-trimethylnaphthalene coelute 35.3 NA NA 67.5 NA NA 13.1 NA NA <90.5 30.6 39.3 37.2 19.7 52.9

fluorene 23.9 27.9 7.44 NA 20.7 18.6 <40 23.2 <17.3 17.0 <63.7 15.3 <27.0 21.6 4.4 20.4

phenanthrene 180 188 69.1 NA 174 112 135 52.1 <26.7 105 139 142 105 129 49 37.6

anthracene 20.6 5.07 19.8 NA 21.3 9.10 <40 NA <28.7 <25.0 31.7 16.2 30.2 19.3 9.2 47.9

1-methylphenanthrene 53.3 57.5 28.0 NA 46.6 32.6 NA 41.3 NA NA 56.8 35.8 32.6 42.7 11.3 26.4

fluoranthene 130 152 65.9 NA 124 111 103 67.2 80.8 102 <168 107 113 109 30 27.2

pyrene 237 268 125 NA 229 197 147 166 148 192 174 184 191 197 42 21.6

benz[a]anthracene 26.9 32.9 15.1 NA 25.3 20.6 <40 18.5 42.6 25.7 23.9 24.6 33.5 24.6 6.1 24.8

chrysene 59.3 coelute 63.5 NA coelute 91.7 <40 coelute <50.0 81.9 coelute 110 coelute 71.5 17.6 24.6

triphenylene 48.8 coelute NA NA coelute NA NA coelute NA NA coelute NA coelute no target

chrysene/triphenylene above 129 above NA 109 above above 56.5 above above 83.6 above 103 96.2 27.5 28.6

benzo[b ]fluoranthene 34.6 45.7 31.2 NA 35.6 29.5 <40 coelute <36.0 46.4 37.6 32.1 49.6 37.0 7.1 19.3

benzo[j ]fluoranthene 14.3 coelute NA NA coelute NA NA coelute NA NA coelute NA coelute no target

benzo[k ]fluoranthene 15.7 coelute 11.0 NA coelute 19.9 <40 coelute <46.0 15.1 coelute 29.6 coelute 15.4 3.6 23.4

benzo[j+k ]fluoranthene above 35.0 above NA 29.4 above above NA above above <32.9 above 43.6 36.0 7.1 19.8

benzo[b+j+k ]fluoranthene above above above above above above above 48.5 above above above above above no target

benzo[e]pyrene 64.8 71.0 36.6 NA 61.3 48.8 NA 36.0 NA NA <46.4 58.2 54.9 53.9 12.7 23.6

benzo[a]pyrene 5.41 5.48 6.19 NA 5.30 2.91 <40 4.37 <56.7 7.52 <37.8 14.2 39.3 4.94 1.16 23.4

perylene 3.71 3.88 7.38 NA 3.53 2.80 NA 3.63 NA NA <15.9 5.61 <27.0 3.51 0.41 11.8

indeno[1,2,3-cd]pyrene 8.45 10.7 4.63 NA 7.61 12.3 <40 4.97 <80.0 <25.0 <63.1 8.94 39.4 8.82 2.53 28.6

dibenz[a,h]anthracene 2.24 NA 2.43 NA <3.89 2.32 <40 1.80 <80.0 <25.0 <49.8 4.05 <27.0 2.12 0.28 13.1

benzo[ghi]perylene 19.3 21.2 13.3 NA 17.9 11.5 <40 8.77 <48.7 18.9 <25.4 17.8 44.3 15.7 4.6 29.1

Note: Bolded values were not used in the calculation of the exercise assigned value; NA = not analyzed
22

Table 3. Mussel Tissue XIII (QA07TIS13): Laboratory means of three replicates and exercise assigned values - Pesticides

 (reported as if three figures were significant)

ng/g dry mass Exercise Assigned

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15 Value s %RSD

alpha-HCH (a-BHC) <1 inf NA NA 0.069 <2.0 8.70 <0.23 7.93 <3641 NA NA <2.67 no target

hexachlorobenzene <1 <0.378 1.50 DL 0.156 <2.4 DL <0.25 6.34 NA <1.79 NA 3.83 no target

gamma-HCH (g-BHC,lindane) <1 inf <2.67 DL 0.226 <1.5 DL <0.22 2.77 <123 <0.73 NA <2.67 no target

beta-HCH (b-BHC) 3.08 inf NA NA 3.12 NA DL 3.29 7.56 <3641 NA NA <2.67 3.16 0.11 3.5

heptachlor <1 inf <2.67 NA 0.142 <2 9.90 <0.25 9.59 <124 <1.72 NA 3.52 no target

aldrin <1 inf <2.67 NA 0.034 <1.5 DL <0.24 2.53 <124 <4.43 NA <2.67 no target

heptachlor epoxide <1 0.669 <2.67 NA 0.521 <1.8 2.20 <0.23 2.84 <3641 <4.91 NA 3.12 no target

oxychlordane <1 62.6 <2.67 NA <0.113 NA DL <0.28 NA NA NA NA <2.67 no target

gamma-chlordane 5.54 8.18 7.04 NA 4.94 8.00 DL 6.08 6.71 <3641 NA NA 3.68 6.21 1.65 26.5

2,4'-DDE 1.76 4.82 1.28 NA 1.70 1.83 DL 1.81 NA <248 3.06 NA 5.98 2.78 1.72 61.9

endosulfan I <1 <0.381 NA NA < 0.217 <1.5 DL <0.25 6.94 <3641 <1.06 NA 3.61 no target

cis-chlordane (alpha-chlordane) 6.07 10.5 5.94 5.83 6.14 6.29 DL 5.45 6.17 <124 12.0 NA 4.66 6.99 2.50 35.7

trans-nonachlor 6.35 8.99 5.21 4.86 6.39 6.02 5.73 5.18 NA NA <12.0 NA 5.23 6.03 1.33 22.1

dieldrin 4.51 8.49 <2.67 NA 4.26 4.69 DL 5.25 14.8 <248 7.09 NA 2.70 5.28 1.92 36.4

4,4'-DDE 19.6 34.9 19.1 20.5 20.0 21.6 18.7 23.2 24.1 18.6 37.6 NA 12.9 23.3 7.9 33.9

2,4'-DDD 6.95 inf 7.35 NA 6.41 7.30 DL 10.3 NA <248 10.5 NA 5.08 7.69 1.99 25.8

endrin <1 NA <2.67 NA 0.577 <2.2 DL 0.514 31.7 <7282 NA NA 9.16 no target

endosulfan II <1 NA NA NA <0.5 <3.4 DL <0.25 5.98 <7282 <2.18 NA <2.67 no target

4,4'-DDD 14.4 inf 18.9 16.6 14.0 13.1 13.0 20.5 27.3 <248 26.0 NA 9.08 17.7 4.6 25.8

2,4'-DDT <1 inf <2.67 NA 0.883 <2.8 DL 1.54 NA <248 <2.98 NA 2.74 no target

cis-nonachlor 3.53 5.43 2.66 NA 3.31 NA 3.83 3.85 NA NA NA NA <2.67 3.77 0.92 24.5

4,4'-DDT 1.56 2.15 1.57 1.49 1.37 <2.5 DL 1.53 15.4 <248 <6.63 NA <2.67 1.61 0.27 17.0

mirex <1 inf <2.67 NA 0.793 <1.5 DL 0.561 NA NA <1.49 NA 10.1 no target

endosulfan sulfate <1 NA NA NA < 0.627 NA DL <0.27 <3.43 <7282 <3.19 NA 3.11 no target

chlorpyrifos NA NA NA NA NA NA NA 2.39 NA NA <5.00 NA NA no target

Note: Bolded values were not used in the calculation of the exercise assigned value; NA = not analyzed
23

Table 4. Mussel Tissue XIII (QA07TIS13): Laboratory means of three replicates and exercise assigned values - PCBs

 (reported as if three figures were significant)

ng/g dry mass Exercise Assigned

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15 Value s %RSD

PCB 8 1.13 NA 1.55 0.774 1.05 <2.8 NA 0.926 NA 1.75 3.09 1.26 2.99333 1.71 1.05 61.3

PCB 18 1.65 3.63 2.23 1.93 1.42 <2.7 NA 2.40 NA 1.68 5.25 2.27 3.313 2.68 1.20 44.9

PCB 28 6.29 10.1 7.33 7.04 6.03 4.03 NA 4.89 NA 6.76 <3.21 5.71 2.72 5.90 1.16 19.7

PCB 31 3.68 11.9 NA NA 3.82 NA NA 3.51 NA 4.63 <2.73 3.71 <2.00 3.68 0.13 3.5

PCB 44 7.33 8.40 5.56 6.80 7.77 5.81 NA 6.84 NA 3.46 7.74 7.83 3.70 7.16 1.01 14.1

PCB 49 5.85 9.25 NA NA 5.18 NA NA 7.56 NA 6.25 NA 6.06 4.47 6.40 1.74 27.2

PCB 52 12.0 18.0 12.7 13.1 10.1 11.9 NA 14.0 NA 7.11 15.5 11.9 5.25 13.2 2.3 17.7

PCB 66 10.8 13.9 10.7 11.1 10.4 10.5 NA 8.58 NA 7.60 11.0 10.0 4.00 10.8 1.4 13.0

PCB 95 10.9 15.2 NA NA 10.2 NA NA 13.0 NA 9.47 14.9 11.0 NA 12.5 2.2 17.4

PCB 99 12.1 14.4 NA NA 12.9 NA NA 12.0 NA 11.2 13.7 15.8 8.35 12.7 2.3 18.4

PCB 101 23.3 30.5 24.8 24.9 20.6 27.0 NA 23.8 NA 13.4 28.1 23.0 13.87 25.1 3.0 11.9

PCB 105 5.69 9.08 6.27 7.47 5.48 5.89 NA 4.53 NA 5.03 7.25 5.64 3.94 6.13 1.49 24.4

PCB 118 18.0 29.4 24.4 22.2 17.3 20.5 NA 21.4 NA 14.4 25.1 19.4 11.1 22.0 3.8 17.3

PCB 128 3.06 5.17 5.14 3.32 2.94 4.32 NA 2.69 NA 2.98 4.83 3.25 <4.00 3.86 1.00 26.0

PCB 138 25.5 coelute 30.7 22.9 coelute 22.9 NA 24.8 NA coelute coelute coelute 11.0 20.6 6.5 31.5

PCB 138/163 above 36.8 above above 25.0 above NA above NA 22.7 27.9 26.2 above 29.0 5.4 18.5

PCB 149 16.5 24.2 NA NA 16.9 NA NA 12.8 NA 15.6 18.4 17.6 14.1 17.7 3.7 21.0

PCB 153 26.6 coelute 34.3 29.2 27.8 28.3 NA coelute NA 20.9 31.9 28.8 16.3 29.6 2.6 9.0

PCB 153/132 above 48.1 above above above above NA 38.9 NA above above above above no target

PCB 156 1.59 1.65 NA NA 1.41 NA NA 2.88 NA 0.950 1.71 1.27 <2.00 1.75 0.58 32.9

PCB 170 1.71 2.53 2.20 0.198 1.54 2.11 NA 2.10 NA 1.93 1.65 1.61 2.14 1.95 0.34 17.4

PCB 180 5.25 8.69 6.01 5.14 5.12 5.15 NA 5.64 NA 5.84 5.55 5.17 <4.00 5.76 1.22 21.2

PCB 187 9.80 15.1 10.7 11.5 9.72 9.77 NA 10.5 NA 9.18 10.6 10.2 6.42 10.9 1.7 15.4

PCB 194 0.480 0.664 NA NA 0.434 NA NA 0.451 NA 0.520 0.913 0.462 <4.00 0.567 0.189 33.4

PCB 195 <1 <0.384 <2.67 DL 0.083 <1.8 NA <0.27 NA <0.40 <2.13 0.082 <2.00 no target

PCB 206 <1 <0.386 <2.67 DL 0.075 <1.7 NA <0.29 NA <0.40 <0.866 0.064 <4.00 no target

PCB 209 <1 <0.383 <2.67 DL 0.062 <1.7 NA <0.24 NA <0.40 <0.974 0.076 <2.00 no target

Note: Bolded values were not used in the calculation of the exercise assigned value; NA = not analyzed
24

Table 5. Mussel Tissue XIII (QA07TIS13): Laboratory means of three replicates and exercise assigned values - PBDEs

 (reported as if three figures were significant)

ng/g dry mass Exercise Assigned

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15 Value s %RSD

BDE 15 <2 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 17 <2 NA NA NA NA NA NA NA NA NA <0.893 NA NA no target

BDE 25 <2 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 28 coelute 3.34 NA NA NA NA NA NA NA 2.06 1.46 NA NA no target

BDE 30 <2 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 33 coelute NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 28/33 NA NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 47 34.5 42.0 NA NA NA NA NA NA NA 23.7 33.9 NA NA 36.8 4.5 12.2

BDE 49 <5 3.14 NA NA NA NA NA NA NA NA NA NA NA no target

BDE 66 <5 0.977 NA NA NA NA NA NA NA 0.420 <1.12 NA NA no target

BDE 71 <5 NA NA NA NA NA NA NA NA NA <1.17 NA NA no target

BDE 75 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 85 <5 <0.967 NA NA NA NA NA NA NA <0.24 <6.15 NA NA no target

BDE 99 7.76 8.18 NA NA NA NA NA NA NA <10.0 5.54 NA NA 7.16 1.42 19.8

BDE 100 3.58 3.97 NA NA NA NA NA NA NA 2.15 3.65 NA NA 3.73 0.21 5.5

BDE 116 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 118 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 119 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 138 <5 NA NA NA NA NA NA NA NA <2.00 <3.12 NA NA no target

BDE 153 <5 <0.965 NA NA NA NA NA NA NA <0.24 <1.00 NA NA no target

BDE 154 <5 <0.973 NA NA NA NA NA NA NA <0.20 <5.75 NA NA no target

BDE 155 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 156 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 181 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 183 <5 <0.977 NA NA NA NA NA NA NA <0.20 <1.48 NA NA no target

BDE 190 <5 NA NA NA NA NA NA NA NA NA <6.17 NA NA no target

BDE 191 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 196 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 197 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 203 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 205 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 206 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 207 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 208 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 209 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target

Note: Bolded values were not used in the calculation of the exercise assigned value; NA = not analyzed
25

Table 6. SRM 2977: Laboratory means of three replicates and target values - TEO and PAHs 

 (reported as if three figures were significant)

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15

TEO (percent) 5.89 7.74 NA 7.99 NA 4.32 0.00 11.0 NA NA 9.02 2.92 4.20 no target

PAHs (ng/g dry mass) Certificate Values

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15 conc. 95%CL type

naphthalene 14.8 9.45 13.7 NA 14.3 14.8 186 8.30 NA NA 44.5 56.3 <20.0 21.1 1.4 Reference

2-methylnaphthalene 12.5 11.1 5.51 NA 8.35 8.63 <40 7.50 NA NA <75.6 32.4 <20.0 17.3 1.7 Reference

1-methylnaphthalene 7.97 7.09 8.95 NA 6.52 5.12 55.0 5.80 NA NA <48.5 20.6 <20.0 15.6 1.5 Reference

biphenyl 4.90 3.55 2.35 NA <5 4.66 NA 5.10 NA NA <24.0 8.28 <20.0 6.0 1.3 Reference

2,6-dimethylnaphthalene 17.4 17.0 10.4 NA 16.1 13.0 NA 15.7 NA NA <52.3 22.2 <20.0 no target Target

acenaphthylene 2.98 <0.380 3.26 NA 1.34 3.45 <40 4.10 NA NA <21.3 3.29 <20.0 no target Target

acenaphthene 3.15 3.19 5.55 NA 3.18 3.20 <40 2.70 NA NA <61.4 2.98 <20.0 4.9 1.2 Reference

1,6,7-trimethylnaphthalene coelute 32.1 NA NA 79.3 NA NA 24.3 NA NA <91.1 38.0 51.8 no target Target

fluorene 10.2 10.0 6.02 NA 9.82 8.20 <40 10.4 NA NA <64.2 9.03 <20.0 10.30 0.13 Certified

phenanthrene 39.4 41.8 21.8 NA 41.4 35.4 108 30.2 NA NA 31.5 39.5 35.3 36.2 2.5 Certified

anthracene 3.16 3.05 3.32 NA 2.85 6.59 <40 NA NA NA <24.1 8.42 <20.0 6.2 1.4 Reference

1-methylphenanthrene 44.9 57.2 46.6 NA 49.7 28.1 NA 43.7 NA NA 56.9 49.3 36.5 39.0 1.9 Certified

fluoranthene 39.0 46.0 24.3 NA 38.7 35.6 170 38.2 NA NA <169 34.1 37.8 38.90 0.63 Certified

pyrene 79.0 90.4 46.2 NA 86.4 33.4 252 73.6 NA NA 64.4 63.7 70.0 77.4 2.1 Certified

benz[a]anthracene 22.1 25.3 12.1 NA 20.5 21.7 <40 15.3 NA NA 19.7 19.1 <20.0 20.19 0.87 Certified

chrysene 44.6 coelute 52.2 NA coelute 63.4 <40 coelute NA NA coelute 85.0 coelute 42.2 5.5 Reference

triphenylene 35.3 coelute NA NA coelute NA NA coelute NA NA coelute NA coelute 36.1 2.4 Reference

chrysene/triphenylene above 101 above NA 95.9 above above 86.9 NA NA 76.5 above 75.5 78.1 8.4 Target

benzo[b ]fluoranthene 11.7 16.0 11.7 NA 13.5 9.18 43.4 coelute NA NA 17.3 12.6 <20.0 11.10 0.50 Certified

benzo[j ]fluoranthene 4.49 coelute NA NA coelute NA NA coelute NA NA coelute NA coelute 4.48 0.15 Certified

benzo[k ]fluoranthene 4.09 coelute 5.51 NA coelute 5.86 <40 coelute NA NA coelute 12.0 coelute 4.02 0.75 Reference

benzo[j+k ]fluoranthene above 13.6 above NA 10.7 above above NA NA NA <33.2 above <20.0 8.50 0.85 Target

benzo[b+j+k ]fluoranthene above above above NA above above above 24.8 NA NA above above above 19.6 1.4 Target

benzo[e]pyrene 13.8 20.3 11.3 NA 17.5 11.5 NA 17.7 NA NA <46.7 22.1 <20.0 13.3 0.43 Certified

benzo[a]pyrene 5.48 5.30 7.20 NA 6.96 3.34 74.4 6.20 NA NA <38.0 29.3 <20.0 5.30 0.61 Certified

perylene 3.38 2.70 15.3 NA 2.70 2.10 NA 3.10 NA NA <16.0 8.660 <20.0 3.69 0.38 Certified

indeno[1,2,3-cd]pyrene 4.56 4.61 8.02 NA 4.20 3.79 <40 3.90 NA NA <63.5 4.37 <20.0 4.76 0.15 Certified

dibenz[a,h]anthracene 1.53 2.10 5.55 NA 2.07 DL <40 1.30 NA NA <50.1 2.820 <20.0 1.47 0.33 Reference

benzo[ghi]perylene 10.2 11.3 11.3 NA 10.1 5.82 <40 10.0 NA NA <25.6 11.20 <20.0 9.45 0.37 Certified
26

Table 7. SRM 2977: Laboratory means of three replicates and target values - Pesticides 

 (reported as if three figures were significant)

ng/g dry mass Certificate Values

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15 conc. 95%CL type

alpha-HCH (a-BHC) <2 inf NA NA SRM 2978 <2.0 17.0 <0.23 NA NA NA NA <2.00 no target Target

hexachlorobenzene <2 <0.326 3.04 DL SRM 2978 2.47 DL <0.25 NA NA <1.80 NA <2.00 no target Target

gamma-HCH (g-BHC,lindane) <2 inf <4.44 DL SRM 2978 <1.5 DL <0.22 NA NA <0.73 NA <2.00 no target Target

beta-HCH (b-BHC) <2 inf NA NA SRM 2978 NA 10.0 8.65 NA NA NA NA 4.85 no target Target

heptachlor <2 inf <4.44 NA SRM 2978 <2 13.0 <0.25 NA NA <1.73 NA 2.23 no target Target

aldrin <2 inf <4.44 NA SRM 2978 <1.5 DL <0.24 NA NA <4.46 NA <2.00 no target Target

heptachlor epoxide <2 0.544 <4.44 NA SRM 2978 <1.8 1.79 <0.23 NA NA <4.95 NA 2.98 no target Target

oxychlordane <2 inf <4.44 NA SRM 2978 NA DL <0.28 NA NA NA NA 2.00 no target Target

gamma-chlordane 1.63 1.58 3.38 NA SRM 2978 3.55 DL 1.47 NA NA NA NA <2.00 2.01 0.39 Reference

2,4'-DDE 1.09 1.26 <4.44 NA SRM 2978 <1.0 DL 0.311 NA NA <0.666 NA 4.60 no target Target

endosulfan I <2 <0.329 NA NA SRM 2978 <1.5 DL <0.25 NA NA <1.07 NA 2.18 no target Target

cis-chlordane (alpha-chlordane) 1.04 0.631 0.803 0.311 SRM 2978 1.55 DL 0.785 NA NA <11.8 NA 2.45 1.14 0.39 Reference

trans-nonachlor 1.03 0.525 0.518 DL SRM 2978 <1.4 16.0 0.835 NA NA <12.1 NA 2.49 1.25 0.17 Certified

dieldrin 5.56 6.74 7.53 NA SRM 2978 5.52 DL 7.80 NA NA 6.45 NA 2.42 5.55 0.61 Certified

4,4'-DDE 12.3 12.4 6.48 5.90 SRM 2978 6.70 29.0 10.3 NA NA 12.6 NA 5.17 11.8 1.2 Certified

2,4'-DDD 3.24 inf 2.26 NA SRM 2978 <4.0 3.60 2.83 NA NA 3.55 NA <2.00 3.15 0.25 Certified

endrin <2 NA <4.44 NA SRM 2978 <2.2 DL 1.12 NA NA NA NA 18.1 no target Target

endosulfan II <2 NA NA NA SRM 2978 <3.4 4.70 2.34 NA NA <2.20 NA <2.00 no target Target

4,4'-DDD 3.40 inf 3.39 1.50 SRM 2978 3.00 26.0 2.98 NA NA 3.64 NA <2.00 3.92 0.56 Certified

2,4'-DDT <2 inf <4.44 NA SRM 2978 <2.8 4.00 <0.25 NA NA <3.00 NA <2.00 no target Target

cis-nonachlor <2 0.300 0.223 NA SRM 2978 NA 7.60 1.69 NA NA NA NA <2.00 no target Target

4,4'-DDT 1.07 <0.325 1.17 0.472 SRM 2978 <2.5 21.0 0.748 NA NA <6.67 NA 1.99 1.32 0.16 Certified

mirex <2 inf <4.44 NA SRM 2978 <1.5 DL 0.637 NA NA <1.50 NA 6.90 no target Target

endosulfan sulfate <2 NA NA NA SRM 2978 NA DL <0.27 NA NA <3.21 NA 3.12 no target Target

chlorpyrifos NA NA NA NA SRM 2978 NA NA 1.06 NA NA <5.00 NA NA no target Target

NA = not analyzed; inf=interference; DL=detection limit
27

Table 8. SRM 2977: Laboratory means of three replicates and target values - PCBs

 (reported as if three figures were significant)

ng/g dry mass Certificate Values

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15 conc. 95%CL type

PCB 8 1.78 NA 2.33 0.111 1.21 <2.8 NA 1.55 NA NA <3.10 1.35 2.34 1.99 0.14 Certified

PCB 18 1.90 2.78 1.88 1.06 1.31 <2.7 NA 1.99 NA NA <3.57 2.14 2.420 2.24 0.74 Reference

PCB 28 5.95 8.10 6.72 5.21 6.48 4.62 NA 5.65 NA NA 5.77 6.16 2.51 5.17 0.36 Certified

PCB 31 3.58 4.35 NA NA 3.33 NA NA 3.68 NA NA 3.81 3.38 1.43 3.86 0.29 Certified

PCB 44 2.95 2.31 2.13 1.26 4.06 <2.3 NA 2.68 NA NA 3.25 4.56 1.58 3.22 0.21 Certified

PCB 49 2.04 2.08 NA NA 1.28 NA NA 1.80 NA NA NA 1.32 1.80 2.44 0.27 Certified

PCB 52 7.77 9.36 7.84 9.59 6.38 6.18 NA 9.53 NA NA 8.03 7.30 2.74 8.02 0.56 Certified

PCB 66 3.61 4.57 4.09 3.45 3.59 2.66 NA 3.54 NA NA 3.71 3.08 <1.33 3.55 0.18 Certified

PCB 95 5.12 5.31 NA NA 4.30 NA NA 5.20 NA NA 5.01 3.88 NA 5.17 0.53 Certified

PCB 99 4.50 4.99 NA NA 4.99 NA NA 2.58 NA NA 4.55 5.23 3.21 3.0 1.2 Reference

PCB 101 9.62 10.9 10.0 8.69 8.32 9.17 NA 10.0 NA NA 10.0 7.64 5.66 10.6 1.2 Certified

PCB 105 2.86 4.15 3.07 3.20 2.82 3.24 NA 3.17 NA NA 3.87 2.31 1.86 2.93 0.46 Reference

PCB 118 9.06 12.6 14.3 8.75 8.50 8.43 NA 10.2 NA NA 9.69 7.40 4.90 10.00 0.41 Certified

PCB 128 2.04 3.37 2.90 1.45 1.67 2.08 NA 1.81 NA NA 2.71 1.52 <2.67 2.38 0.28 Certified

PCB 138 8.62 coelute 15.3 10.0 coelute 9.89 NA 14.3 NA NA coelute coelute 4.92 7.94 0.63 Certified

PCB 138/163 above 18.0 above above 12.6 above NA above above NA 14.6 11.6 above no target Target

PCB 149 7.46 7.96 NA NA 5.88 NA NA 6.15 NA NA 6.75 5.61 3.14 8.95 0.67 Certified

PCB 153 13.2 coelute 12.9 10.5 11.5 10.4 NA coelute NA NA 11.8 9.64 5.76 14.1 1.3 Certified

PCB 153/132 above 17.5 above above above above NA 15.5 NA NA above above above no target Target

PCB 156 0.908 0.757 NA NA 0.866 NA NA 0.986 NA NA 1.04 0.597 <1.33 0.959 0.036 Certified

PCB 170 2.76 3.30 2.76 ND 2.81 2.29 NA 2.85 NA NA 2.42 2.01 2.11 2.74 0.25 Certified

PCB 180 6.98 7.90 5.57 4.41 7.16 4.53 NA 12.0 NA NA 5.58 4.56 2.91 6.32 0.72 Certified

PCB 187 4.60 5.55 4.35 3.87 4.54 3.08 NA 4.50 NA NA 4.29 3.35 2.46 4.47 0.32 Certified

PCB 194 0.895 0.860 NA NA 1.07 NA NA 0.748 NA NA 0.944 0.553 <2.67 0.881 0.032 Certified

PCB 195 <1 <0.331 <4.44 DL 0.293 <1.8 NA <0.27 NA NA <2.15 0.116 <1.33 no target Target

PCB 206 <1 <0.333 <4.44 DL 0.073 <1.7 NA <0.29 NA NA <0.873 <1.09 <2.67 no target Target

PCB 209 <1 <0.331 <4.44 DL <0.005 <1.7 NA <0.24 NA NA <0.981 <1.09 <1.33 no target Target

NA = not analyzed
28

Table 9. SRM 2977: Laboratory means of three replicates and target values - PBDEs

 (reported as if three figures were significant)

ng/g dry mass Certificate Values

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15 conc. std dev type

BDE 15 <2 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 17 <2 NA NA NA NA NA NA NA NA NA <0.900 NA NA 1.04 0.19 Reference

BDE 25 <2 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 28 coelute 4.49 NA NA NA NA NA NA NA NA 1.55 NA NA no target Target

BDE 30 <2 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 33 coelute NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 28/33 NA NA NA NA NA NA NA NA NA NA NA NA NA 2.54 0.40 Certified

BDE 47 40.5 55.1 NA NA NA NA NA NA NA NA 40.9 NA NA 36.5 4.0 Certified

BDE 49 <5 2.18 NA NA NA NA NA NA NA NA NA NA NA 1.20 0.19 Certified

BDE 66 <5 1.05 NA NA NA NA NA NA NA NA <1.13 NA NA 0.453 0.046 Certified

BDE 71 <5 NA NA NA NA NA NA NA NA NA <1.18 NA NA no target Target

BDE 75 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 85 <5 <0.834 NA NA NA NA NA NA NA NA <6.20 NA NA no target Target

BDE 99 4.96 7.94 NA NA NA NA NA NA NA NA 5.02 NA NA 4.68 0.92 Reference

BDE 100 2.51 3.34 NA NA NA NA NA NA NA NA 2.50 NA NA 1.82 0.64 Reference

BDE 116 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 118 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 119 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 138 <5 NA NA NA NA NA NA NA NA NA <3.15 NA NA no target Target

BDE 153 <5 <0.832 NA NA NA NA NA NA NA NA <1.00 NA NA 0.16 0.04 Reference

BDE 154 <5 <0.839 NA NA NA NA NA NA NA NA <5.79 NA NA 0.20 0.09 Reference

BDE 155 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 156 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 181 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 183 <5 <0.843 NA NA NA NA NA NA NA NA <1.49 NA NA no target Target

BDE 190 <5 NA NA NA NA NA NA NA NA NA <6.21 NA NA no target Target

BDE 191 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 196 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 197 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 203 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 205 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 206 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 207 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 208 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 209 <5 NA NA NA NA NA NA NA NA NA NA NA NA no target Target

NA = not analyzed
29

Table 10. Marine Sediment XIV (QA07SED14): Laboratory means of three replicates and exercise assigned values - Water, TOC, and PAHs 

 (reported as if three figures were significant)

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15 Value s %RSD

Water (percent) 47.4 48.2 49.6 NA 42.3 48.1 49.0 47.3 50.0 48.6 35.5 44.5 47.7 43.5 43.5 45.4 46.0 3.8 8.2

TOC (percent) NA 2.69 NA 4.44 NA NA NA 4.37 4.15 NA NA NA NA NA NA 4.15 3.96 0.72 18.2

PAHs (ng/g dry mass) Exercise Assigned

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15 Value s %RSD

naphthalene 568 202 543 245 NA 587 87.5 233 369 26.2 427 123 547 318 486 169 329 190 57.7

2-methylnaphthalene 349 < 1920 382 82.1 NA 317 65.1 163 232 16.6 270 102 426 245 283 111 217 129 59.2

1-methylnaphthalene 126 68.2 129 176 NA 131 32.4 74.0 101 11.8 107 50 197 112 123 <75.1 103 52 50.4

biphenyl 106 NA 118 64.6 NA 101 30.1 NA 58.2 <39.2 63.5 NA 216 129 113 <75.1 99.9 51.7 51.7

2,6-dimethylnaphthalene 251 NA 276 49.1 NA 235 78.9 NA 153 NA 161 NA 225 206 210 105 177 74 41.8

acenaphthylene 155 172 45.2 177 NA 141 132 310 164 35.8 236 169 528 180 237 82.6 184 119 64.5

acenaphthene 69.3 40.6 70.5 41.0 NA 67 34.7 85.0 41.9 8.04 56.2 29.2 63.2 66.4 74 <75.1 53.4 21.3 39.9

1,6,7-trimethylnaphthalene coelute NA 103 NA NA 259 NA NA 51.4 NA NA NA 149 189 117 151 146 66 45.5

fluorene 88.4 102 113 60.0 62.6 81.3 70.4 92.7 79.6 9.72 93.0 83.9 135 130 80.7 73.0 85.1 23.8 27.9

phenanthrene 1334 886 1387 1112 1019 1280 873 860 1437 120 1117 669 1236 957 1110 1015 1022 177 17.3

anthracene 315 289 325 223 234 301 170 303 470 27.3 361 158 815 250 469 143 302 170 56.3

1-methylphenanthrene 333 NA 330 337 NA 271 211 NA 267 NA 413 NA 327 363 245 202 303 68 22.6

fluoranthene 3565 2580 3567 3717 3520 3593 3000 2600 2657 319 4113 1695 2676 2540 2950 3680 3238 532 16.4

pyrene 3213 2513 3173 3073 2970 3250 2583 2100 3140 296 3247 1702 2835 2477 2627 3247 2870 377 13.1

benz[a ]anthracene 1104 956 1290 1333 1010 1093 1052 893 992 139 1140 715 1328 969 1033 1270 1113 149 13.4

chrysene 1753 1487 coelute 2103 1490 coelute 1583 1500 coelute 200 1870 1171 coelute 1453 1880 coelute 1680 231 13.8

triphenylene 390 NA coelute NA NA coelute NA NA coelute NA NA NA coelute NA NA coelute no target

chrysene/triphenylene above above 2217 above above 2150 above above 1177 above above above 1917 above above 1917 2050 156 7.6

benzo[b ]fluoranthene 1147 1630 1850 3097 NA 1643 1580 1600 coelute 214 1557 1108 2664 1947 1477 1987 1848 539 29.1

benzo[j ]fluoranthene 614 NA coelute NA NA coelute NA NA coelute NA NA NA coelute NA NA coelute no target

benzo[k ]fluoranthene 873 878 coelute 836 NA coelute 1383 553 coelute 114 1213 783 coelute 762 1473 coelute 929 280 30.2

benzo[j+k ]fluoranthene above above 1640 above above 1617 above above coelute above above above 979 above above 1617 1463 323 22.1

benzo[b+j+k ]fluoranthene above above above above above above above above 2628 above above above above above above above no target

benzo[e ]pyrene 1582 NA 1573 1743 2747 1597 1350 NA 1045 NA 1270 NA 1457 1105 1450 1413 1454 183 12.6

benzo[a ]pyrene 999 693 1000 945 800 996 758 760 688 143 809 536 991 696 881 980 870 121 13.9

perylene 397 NA 405 332 151 396 355 NA 214 NA 438 NA 459 328 386 356 385 43 11.2

indeno[1,2,3-cd ]pyrene 1156 693 1250 973 944 1073 864 867 709 104 923 675 1487 744 978 1187 1011 218 21.6

dibenz[a,h ]anthracene 297 255 NA 236 214 coelute 184 217 165 32.7 297 267 477 293 335 384 271 61 22.7

dibenz[a,h +a,c ]anthracene NA NA 319 NA NA 344 NA NA NA NA NA NA NA NA NA NA no target

benzo[ghi]perylene 1221 870 1313 933 898 1187 808 940 676 139 975 671 1054 923 1210 1263 1046 171 16.3

Note: Bolded values were not used in the calculation of the exercise assigned values; NA = not analyzed
30

Table 11. Marine Sediment XIV (QA07SED14): Laboratory means of three replicates and exercise assigned values - Pesticides

 (reported as if three figures were significant)

ng/g dry mass Exercise Assigned

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15 Value s %RSD

alpha-HCH (a-BHC) <2 < 49.3 inf NA NA 0.228 1.05 DL <0.52 1.34 0.249 <229 NA NA NA <0.943 no target

hexachlorobenzene 5.19 NA 5.12 5.17 3.79 5.34 5.09 DL 5.04 3.81 5.71 NA 6.61 NA NA 3.19 4.92 0.97 19.7

gamma-HCH (g-BHC,lindane) <1 < 49.3 inf <25.7 0.370 0.119 <1 29.0 <0.25 2.28 0.115 <229 <0.36 NA NA 0.965 no target

beta-HCH (b-BHC) <1 < 49.3 inf NA NA 0.355 NA DL <0.43 <0.507 0.413 <229 NA NA NA 4.51 no target

heptachlor <1 < 49.3 <1.20 <25.7 NA 0.100 <1 12.0 <0.38 <0.527 0.170 <229 DL NA NA 1.02 no target

aldrin <1 < 49.3 inf <25.7 NA 0.078 <1 DL <0.3 0.820 0.114 <229 DL NA NA <0.943 no target

heptachlor epoxide <1 < 49.3 <1.20 <25.7 NA 0.778 <1 14.5 <0.47 0.913 0.736 <229 0.757 NA NA 3.22 0.796 0.079 10.0

oxychlordane <1 NA inf <25.7 NA <0.3 NA DL <0.51 NA 0.058 NA NA NA NA 2.43 no target

gamma-chlordane 28.6 < 49.1 inf 42.1 NA 30.3 29.5 DL 34.5 3.69 31.9 81.5 NA NA NA 15.2 30.3 8.1 26.6

2,4'-DDE 44.2 NA 54.1 33.5 NA 42.5 35.3 21.7 41.4 NA 44.0 130 59.1 NA NA 26.9 42.3 10.0 23.5

endosulfan I <1 < 49.3 <1.21 NA NA < 0.154 <1 DL <0.59 <0.464 NA <229 DL NA NA 2.96 no target

cis-chlordane (alpha-chlordane) 28.5 18.8 inf 32.6 19.2 28.6 25.0 DL 21.2 4.18 36.7 <229 34.3 NA NA 12.7 25.8 7.7 30.0

trans-nonachlor 18.1 NA inf 18.4 11.7 17.4 22.3 DL 13.8 NA 18.4 NA 16.0 NA NA 17.8 17.0 3.2 19.0

dieldrin 7.77 < 49.3 inf <25.7 NA 7.98 7.82 DL 7.25 1.26 9.04 <457 41.7 NA NA 4.05 6.45 2.77 42.9

4,4'-DDE 175 130 184 177 140 143 193 193 165 17.9 156 211 197 NA NA 97.3 169 30 18.1

2,4'-DDD 89.4 NA inf 114 NA 88.9 102 71.0 88.7 NA 83.0 145 97.8 NA NA 59.4 90.4 16.0 17.7

endrin <1 < 49.3 NA <25.7 NA <0.102 19.2 DL <1.12 2.26 0.061 <457 NA NA NA 1.64 no target

endosulfan II <1 < 49.3 NA NA NA <0.436 <1 DL <0.8 2.00 NA <457 0.163 NA NA 1.17 no target

4,4'-DDD 277 155 inf 375 218 274 311 330 252 30.8 216 264 299 NA NA 165 241 56 23.3

2,4'-DDT 4.85 NA inf <25.7 NA 10.4 4.42 DL 6.02 NA 9.55 <457 DL NA NA 4.47 6.61 2.67 40.3

cis-nonachlor 7.64 NA inf 7.66 NA 7.53 NA DL 6.36 NA 6.65 NA NA NA NA 3.85 6.61 1.46 22

4,4'-DDT 532 378 inf 701 408 530 745 497 345 52.5 568 665 1014 NA NA 374 485 135 27.9

mirex <1 NA 59.5 <25.7 NA 0.773 <1 DL <0.44 NA 0.546 20.1 0.813 NA NA 18.7 no target

endosulfan sulfate <1 < 49.3 NA NA NA <0.320 NA DL <0.39 <1.34 NA <457 0.028 NA NA 3.20 no target

chlorpyrifos NA NA NA NA NA NA NA NA <0.76 NA NA NA 2.28 NA NA NA no target

Note: Bolded values were not used in the calculation of the exercise assigned values; NA = not analyzed
31

Table 12. Marine Sediment XIV (QA07SED14): Laboratory means of three replicates and exercise assigned values - PCBs

 (reported as if three figures were significant)

ng/g dry mass Exercise Assigned

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15 Value s %RSD

PCB 8 14.6 NA NA 20.0 13.0 14.6 11.3 NA 14.9 NA 16.3 20.2 4.31 NA 12.5 9.39 14.1 3.0 21.6

PCB 18 25.9 NA 37.7 40.5 30.9 27.3 34.4 NA 22.3 NA 36.6 20.8 13.2 NA 29.3 21.5 29.1 8.1 28.0

PCB 28 68.3 NA 83.2 90.5 50.7 84.7 65.2 NA 75.6 NA 69.9 66.2 85.7 NA 54.9 30.6 72.9 13.5 18.5

PCB 31 56.2 NA 54.9 NA NA 62.5 NA NA 74.2 NA 57.4 53.8 26.6 NA 41.4 29.6 53.3 15.3 28.7

PCB 44 64.1 NA 51.9 70.2 41.4 67.2 53.5 NA 49.8 NA 74.2 28.1 47.2 NA 48.6 27.1 55.6 11.2 20.1

PCB 49 46.5 NA 47.9 NA NA 44.4 NA NA 47.6 NA 43.9 42.1 NA NA 34.3 24.4 44.1 5.1 11.5

PCB 52 72.3 NA 71.9 85.8 55.0 69.6 72.7 NA 75.4 NA 67.0 37.2 116 NA 53.2 34.7 69.2 10.0 14.5

PCB 66 57.8 NA 71.1 78.0 48.1 66.2 62.9 NA 48.1 NA 53.4 40.5 64.6 NA 46.3 27.8 59.6 10.7 18.0

PCB 95 40.7 NA 46.2 NA NA 42.9 NA NA 45.6 NA 38.8 41.1 51.6 NA 36.2 NA 43.1 5.2 12.0

PCB 99 33.9 NA 28.9 NA NA 34.4 NA NA 31.5 NA 27.9 28.0 32.1 NA 30.9 16.1 31.4 2.4 7.6

PCB 101 49.3 NA 65.6 97.4 49.7 53.9 68.6 NA 63.3 NA 63.1 37.6 66.9 NA 47.6 34.4 62.5 14.6 23.3

PCB 105 20.4 NA 25.9 29.2 16.8 19.9 28.8 NA 18.6 NA 20.9 16.1 20.2 NA 15.0 10.8 21.6 4.8 22.4

PCB 118 42.9 NA 59.6 70.2 40.3 43.4 59.4 NA 48.1 NA 46.0 34.5 43.5 NA 36.8 23.4 49.0 10.6 21.5

PCB 128 8.16 NA 11.1 15.8 7.92 8.88 13.2 NA 8.11 NA 9.71 7.71 9.34 NA 7.79 6.42 9.06 1.94 21.4

PCB 138 62.9 NA below 102 47.0 below 67.5 NA 39.4 NA 58.0 below below NA below 29.8 62.8 21.7 34.6

PCB 138/163 NA NA 78.70 NA NA 64.9 NA NA NA NA NA 47.9 67.5 NA 53.5 NA 66.1 10.3 15.6

PCB 149 50.3 NA 59.00 NA NA 53.1 NA NA 42.1 NA 46.7 50.3 48.6 NA 44.6 36.6 47.6 6.9 14.4

PCB 153 53.7 NA below 91.5 48.5 59.7 74.0 NA below NA 62.2 44.5 79.1 NA 47.6 31.2 64.5 15.6 24.2

PCB 153/132 NA NA 90.50 NA NA NA NA NA 65.3 NA NA NA NA NA NA NA no target

PCB 156 6.45 NA 6.74 NA NA 6.86 NA NA 5.11 NA 6.71 4.77 DL NA 4.68 3.32 5.69 1.36 23.9

PCB 170 17.2 NA 20.3 27.9 20.4 16.4 22.9 NA 20.8 NA 18.2 20.6 19.9 NA 14.0 9.93 19.8 3.8 19.4

PCB 180 42.7 NA 50.2 61.8 36.5 below 44.1 NA 39.8 NA 44.6 46.5 44.4 NA below 23.8 45.5 7.7 16.8

PCB 180/193 NA NA NA NA NA 40.4 NA NA NA NA NA NA NA NA 34.6 NA no target

PCB 187 25.7 NA 29.6 36.3 23.7 25.8 32.8 NA 26.4 NA 29.0 19.0 28.2 NA 21.6 13.9 27.9 4.3 15.5

PCB 194 10.1 NA 11.5 NA NA 9.90 NA NA 9.33 NA 12.9 10.5 11.2 NA 8.34 6.48 9.97 2.00 20.0

PCB 195 3.63 NA 3.59 5.68 3.22 3.79 <1 NA 3.94 NA 4.98 2.85 6.25 NA 3.26 <3.01 4.26 1.10 25.9

PCB 206 6.63 NA 9.67 11.2 7.83 6.69 8.79 NA 7.61 NA NA 10.9 8.42 NA 6.13 <6.03 8.10 1.61 19.9

PCB 209 6.42 NA 6.53 9.18 6.24 6.36 7.28 NA 4.58 NA NA 6.60 6.96 NA 4.79 3.31 6.48 1.36 20.9

Note: Bolded values were not used in the calculation of the exercise assigned values; NA = not analyzed
32

Table 13. Marine Sediment XIV (QA07SED14): Laboratory means of three replicates and exercise assigned values - PBDEs

 (reported as if three figures were significant)

ng/g dry mass Exercise Assigned

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15 Value s %RSD

BDE 15 1.13 NA NA NA NA 1.23 NA NA NA NA 0.807 NA NA NA NA NA no target

BDE 17 1.30 NA NA NA NA 1.33 NA NA NA NA 1.57 NA DL NA NA NA 1.40 0.15 10.7

BDE 25 <2 NA NA NA NA other NA NA NA NA 1.57 NA NA NA NA NA no target

BDE 28 coelute NA <2.62 NA NA coelute NA NA NA NA coelute 0.66667 DL NA NA NA no target

BDE 30 <2 NA NA NA NA < 0.0195 NA NA NA NA < .0429 NA NA NA NA NA no target

BDE 33 coelute NA NA NA NA coelute NA NA NA NA coelute NA NA NA NA NA no target

BDE 28/33 <2 NA NA NA NA 0.392 NA NA NA NA 0.582 NA NA NA NA NA no target

BDE 47 4.14 NA 4.53 NA NA 3.65 NA NA NA NA 4.58 4.12 4.09 NA NA NA 4.19 0.34 8.1

BDE 49 1.84 NA 2.52 NA NA 1.72 NA NA NA NA 1.47 NA NA NA NA NA 1.89 0.45 23.7

BDE 66 <2 NA <2.62 NA NA 0.185 NA NA NA NA 0.132 0.150 DL NA NA NA 0.156 0.027 17.3

BDE 71 <2 NA NA NA NA 0.276 NA NA NA NA < .0417 NA DL NA NA NA no target

BDE 75 <2 NA NA NA NA 0.033 NA NA NA NA 0.085 NA NA NA NA NA no target

BDE 85 <2 NA <2.62 NA NA 0.148 NA NA NA NA < .0642 0.173 DL NA NA NA no target

BDE 99 3.94 NA 5.41 NA NA 3.52 NA NA NA NA 3.93 4.48 3.15 NA NA NA 4.07 0.80 19.5

BDE 100 <2 NA <2.62 NA NA 0.878 NA NA NA NA 0.795 1.06 2.24 NA NA NA no target

BDE 116 <2 NA NA NA NA < 0.171 NA NA NA NA 0.123 NA NA NA NA NA no target

BDE 118 <2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 119 <2 NA NA NA NA < 0.0898 NA NA NA NA <0.283 NA NA NA NA NA no target

BDE 138 <2 NA NA NA NA 0.610 NA NA NA NA <.726 0.173 0.541 NA NA NA no target

BDE 153 3.00 NA 3.74 NA NA 2.63 NA NA NA NA 2.90 2.18 2.86 NA NA NA 2.88 0.51 17.7

BDE 154 <2 NA <2.63 NA NA 1.03 NA NA NA NA 0.877 0.867 0.805 NA NA NA 0.895 0.096 10.7

BDE 155 <2 NA NA NA NA 0.104 NA NA NA NA 0.148 NA NA NA NA NA no target

BDE 156 <2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 181 <2 NA NA NA NA 0.108 NA NA NA NA < .0312 NA NA NA NA NA no target

BDE 183 11.9 NA 12.7 NA NA 12.1 NA NA NA NA 8.87 10.0 12.5 NA NA NA 11.3 1.5 13.5

BDE 190 <15 NA NA NA NA 1.74 NA NA NA NA 0.665 NA 1.15 NA NA NA no target

BDE 191 <15 NA NA NA NA NA NA NA NA NA NA NA NA NA NA no target

BDE 196 <15 NA NA NA NA NA NA NA NA NA 8.76 NA NA NA NA NA no target

BDE 197 <15 NA NA NA NA NA NA NA NA NA 5.72 NA NA NA NA NA no target

BDE 203 <15 NA NA NA NA <5 NA NA NA NA 4.06 NA NA NA NA NA no target

BDE 205 <15 NA NA NA NA NA NA NA NA NA < .619 NA NA NA NA NA no target

BDE 206 <15 NA NA NA NA <15 NA NA NA NA 9.41 NA NA NA NA NA no target

BDE 207 <15 NA NA NA NA <25 NA NA NA NA 12.2 NA NA NA NA NA no target

BDE 208 <15 NA NA NA NA <15 NA NA NA NA 1.90 NA NA NA NA NA no target

BDE 209 269 NA NA NA NA 243 NA NA NA NA 389 NA 276 NA NA NA 294 65 22.0

Note: Bolded values were not used in the calculation of the exercise assigned values; NA = not analyzed
33

Table 14. SRM 1944: Laboratory means of three replicates and target values - Water, TOC, and PAHs 

 (reported as if three figures were significant) Certificate Values

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15 conc. 95%CL type

Water (percent) 1.33 NA NA NA NA NA 1.83 NA NA NA NA NA NA 1.33 1.33 NA no target Target

TOC (percent) NA 3.38 NA 4.43 NA NA NA NA NA NA NA NA NA NA NA 4.57 4.4 0.3 Reference

PAHs (ng/g dry mass) Certificate Values

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15 conc. 95%CL type

naphthalene 1465 485 1403 522 NA 2390 261 557 NA 414 1200 NA 1357 883 1030 398 1650 310 Certified

2-methylnaphthalene 926 316 969 270 NA 999 161 343 NA 240 829 NA 863 553 558 246 950 50 Reference

1-methylnaphthalene 539 231 461 305 NA 585 167 243 NA 167 442 NA 580 312 344 266 520 30 Reference

biphenyl 264 NA 248 101 NA 249 58.8 NA NA 75.0 271 NA 339 160 196 <80.7 320 70 Reference

2,6-dimethylnaphthalene 802 NA 821 321 NA 814 309 NA NA NA 569 NA 730 490 500 401 no target Target

acenaphthylene 447 578 207 513 NA 720 470 973 NA 393 754 NA 1372 512 826 444 no target Target

acenaphthene 541 202 334 246 NA 376 173 227 NA 117 459 NA 255 231 294 244 570 30 Reference

1,6,7-trimethylnaphthalene coelute NA 286 NA NA 805 NA NA NA NA NA NA 324 431 300 487 no target Target

fluorene 336 308 394 284 290 317 204 287 NA 162 747 NA 436 299 288 397 no target Target

phenanthrene 5292 3883 5427 4227 4140 5140 3370 3400 NA 2410 4173 NA 4312 4040 4270 4660 5270 220 Certified

anthracene 1709 873 1080 695 801 1060 617 863 NA 430 1457 NA 2029 718 1260 642 1770 330 Certified

1-methylphenanthrene 1328 NA 1417 1025 NA 1260 1063 NA NA NA 1540 NA 1439 1220 1110 1180 1700 100 Reference

fluoranthene 8898 6623 8640 6833 8060 9240 6177 6267 NA 4113 9603 NA 6769 6680 5830 10100 8920 320 Certified

pyrene 9854 6770 8923 6760 8195 9980 6363 5467 NA 4100 9960 NA 7105 7540 6290 10200 9700 420 Certified

benz[a]anthracene 4785 3330 4293 3657 3460 4260 3533 3100 NA 2247 4147 NA 4395 3780 3390 5090 4720 110 Certified

chrysene 4811 4203 coelute 4383 3935 coelute 4090 4033 NA 2553 4883 NA coelute 4430 5030 coelute 4860 100 Certified

triphenylene 1069 NA coelute NA NA coelute NA NA NA NA NA NA coelute NA NA coelute 1040 270 Certified

chrysene/triphenylene above above 5910 above above 5580 above above NA above above NA 4802 above above 5670 5900 370 Target

benzo[b ]fluoranthene 3775 4007 3700 4937 NA 3530 2993 3367 NA 2363 3647 NA 5092 4960 2510 3930 3870 420 Certified

benzo[j]fluoranthene 2342 NA coelute NA NA coelute NA NA NA NA NA NA coelute NA NA coelute 2090 440 Certified

benzo[k ]fluoranthene 2320 1677 coelute 1593 NA coelute 2920 1400 NA 980 2980 NA coelute 1850 3990 coelute 2300 200 Certified

benzo[j+k ]fluoranthene above above 3597 above above 4650 above above NA above above NA 2215 above above 4770 4390 640 Target

benzo[b+j+k ]fluoranthene above above above above above above above above NA above above NA above above above above 8260 1060 Target

benzo[e ]pyrene 3197 NA 3190 2830 5670 3570 2667 NA NA NA 3287 NA 2896 2700 3470 3550 3280 110 Certified

benzo[a ]pyrene 4410 2647 3550 2657 3100 3870 2753 2433 NA 1793 3757 NA 3554 2810 3150 4420 4300 130 Certified

perylene 1194 NA 952 748 334 983 698 NA NA NA 1040 NA 944 760 851 959 1170 240 Certified

indeno[1,2,3-cd ]pyrene 2724 1643 2730 2177 2045 2740 1820 2067 NA 1011 2400 NA 3132 1890 2100 3480 2780 100 Certified

dibenz[a,h ]anthracene 438 662 NA 146 476 coelute 484 527 NA 394 491 NA 1120 629 761 1280 424 69 Certified

dibenz[a,h +a,c ]anthracene NA NA 807 NA NA 896 NA NA NA NA NA NA NA NA NA NA no target Target

benzo[ghi ]perylene 2816 1923 2783 2133 1870 2890 1653 2067 NA 1234 2500 NA 2274 2180 2430 3460 2840 100 Certified

NA = not analyzed
34

Table 15. SRM 1944: Laboratory means of three replicates and target values - Pesticides 

 (reported as if three figures were significant)

ng/g dry mass Certificate Values

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15 conc. 95%CL type

alpha-HCH (a-BHC) <2 < 51.1 inf NA NA 0.199 <1 NA <2.61 <0.420 0.181 NA NA NA NA <1.00 no target Target

hexachlorobenzene 6.07 NA 5.69 4.84 4.22 5.77 5.45 NA 5.02 5.09 5.90 NA 7.42 NA NA 4.13 6.03 0.35 Certified

gamma-HCH (g-BHC,lindane) <2 < 51.1 inf <13.6 0 0.130 2.52 NA 1.75 17.1 0.087 NA <0.89 NA NA <1.00 no target Target

beta-HCH (b-BHC) <2 < 51.1 inf NA NA 0.207 NA NA 9.92 2.27 0.246 NA NA NA NA 6.25 no target Target

heptachlor <2 < 51.1 <1.35 <13.6 NA 0.056 <1 NA <1.91 5.68 0.096 NA DL NA NA 1.36 no target Target

aldrin <2 < 51.1 inf <13.6 NA 0.055 <1 NA <1.51 3.32 0.079 NA DL NA NA <1.00 no target Target

heptachlor epoxide <2 < 51.1 <1.35 <13.6 NA 0.305 <1 NA 4.59 12.0 0.286 NA <3.8 NA NA 3.06 no target Target

oxychlordane <2 NA inf <13.6 NA <0.2 NA NA <2.54 NA 0.041 NA NA NA NA 4.38 no target Target

gamma-chlordane 21.6 < 51.1 inf 25.4 NA 23.7 24.2 NA 10.4 22.0 22.8 NA NA NA NA 12.7 no target Target

2,4'-DDE 16.0 NA 24.1 8.55 NA 16.2 13.5 NA 16.0 NA 16.8 NA 18.0 NA NA 13.1 19 3 Reference

endosulfan I <2 < 51.1 <1.36 NA NA <0.013 <1 NA <2.96 <0.458 NA NA DL NA NA 3.43 no target Target

cis-chlordane (alpha-chlordane) 21.5 15.0 inf 19.2 12.3 20.5 19.6 NA 14.4 24.8 23.9 NA 19.8 NA NA 9.85 16.51 0.83 Certified

trans-nonachlor 10.7 NA inf 10.8 7.59 11.7 13.7 NA 10.9 NA 11.6 NA 9.67 NA NA 26.3 8.20 0.51 Certified

dieldrin 7.59 < 51.1 inf <13.6 NA 7.87 7.36 NA 12.4 10.9 8.83 NA 72.2 NA NA 4.36 no target Target

4,4'-DDE 72.5 77.7 91.2 92.9 64.7 67.2 82.6 NA 88.7 62.4 70.0 NA 116 NA NA 46.6 86 12 Reference

2,4'-DDD 42.7 NA inf 48.3 NA 42.6 57.4 NA 44.5 NA 34.3 NA 50.7 NA NA 23.8 38 8 Reference

endrin <2 < 51.1 NA <13.6 NA <0.056 11.1 NA <5.6 14.3 0.061 NA NA NA NA 1.63 no target Target

endosulfan II <2 < 51.1 NA NA NA 0.122 <1 NA 25.7 5.27 NA NA 1.13 NA NA 2.90 no target Target

4,4'-DDD 95.3 77.7 inf 218 79.4 97.2 103 NA 91.5 93.0 90.1 NA 116 NA NA 49.6 108 16 Reference

2,4'-DDT 8.05 NA inf <13.6 NA 9.29 1.92 NA 6.75 NA 2.25 NA 47.0 NA NA 2.61 no target Target

cis-nonachlor 4.38 NA inf 4.8 NA 5.63 NA NA 4.46 NA 4.14 NA NA NA NA 4.62 3.70 0.70 Reference

4,4'-DDT 137 160 inf 219 134 137 165 213 138 183 96.4 NA 172 NA NA 94.3 119 11 Certified

mirex <2 NA 94.1 <13.6 NA 1.04 1.72 NA <2.19 NA 0.599 NA 0.537 NA NA 30.8 no target Target

endosulfan sulfate <2 < 51.1 NA NA NA <0.050 NA NA 7.06 6.01 NA NA DL NA NA 4.38 no target Target

chlorpyrifos NA NA NA NA NA NA NA NA <3.79 NA NA NA 1.30 NA NA NA no target Target

NA = not analyzed; inf=interference; DL=detection limit
35

Table 16. SRM 1944: Laboratory means of three replicates and target values - PCBs

 (reported as if three figures were significant)

ng/g dry mass Certificate Values

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15 conc. 95%CL type

PCB 8 22.0 NA NA 24.3 18.7 20.8 15.1 NA 17.6 NA 24.4 NA DL NA 17.4 13.5 22.3 2.3 Certified

PCB 18 50.3 NA 60.5 54.2 46.9 47.4 56.4 NA 42.5 NA 58.8 NA 54.4 NA 48.7 32.0 51.0 2.6 Certified

PCB 28 80.2 NA 106 99.7 66.7 114 77.2 NA 81.2 NA 86.6 NA 92.9 NA 75.2 41.8 80.8 2.7 Certified

PCB 31 78.2 NA 83.6 NA NA 92.0 NA NA 72.3 NA 82.5 NA 61.9 NA 61.0 41.9 78.7 1.6 Certified

PCB 44 61.2 NA 64.4 69.1 51.2 87.4 61.3 NA 55.5 NA 81.7 NA 60.6 NA 59.0 34.2 60.2 2.0 Certified

PCB 49 53.0 NA 56.4 NA NA 57.3 NA NA 47.7 NA 43.6 NA NA NA 42.7 31.0 53.0 1.7 Certified

PCB 52 78.2 NA 87.4 85.2 67.1 93.9 66.9 NA 74.3 NA 79.2 NA 113 NA 68.4 43.2 79.4 2.0 Certified

PCB 66 68.0 NA 78.3 77.5 56.1 81.1 72.5 NA 66.0 NA 55.2 NA 62.8 NA 57.9 34.7 71.9 4.3 Certified

PCB 95 60.9 NA 52.1 NA NA 58.4 NA NA 44.2 NA 39.9 NA 59.9 NA 41.9 NA 65.0 8.9 Certified

PCB 99 37.9 NA 31.5 NA NA 41.0 NA NA 30.1 NA 27.0 NA 36.5 NA 37.5 20.0 37.5 2.4 Certified

PCB 101 73.8 NA 73.8 90.4 56.5 71.8 63.6 NA 82.5 NA 63.0 NA 76.3 NA 59.2 39.4 73.4 2.5 Certified

PCB 105 23.7 NA 29.7 28.4 19.7 24.5 26.4 NA 22.7 NA 22.3 NA 20.9 NA 18.5 13.7 24.5 1.1 Certified

PCB 118 55.9 NA 67.1 68.3 47.4 55.6 58.4 NA 50.2 NA 48.9 NA 50.8 NA 45.6 28.6 58.0 4.3 Certified

PCB 128 8.34 NA 11.9 15.8 8.87 10.4 9.06 NA 10.6 NA 10.0 NA 10.5 NA 9.78 7.39 8.47 0.28 Certified

PCB 138 62.2 NA below 93.2 50.9 below 61.9 NA 60.0 NA 56.1 NA below NA below 34.7 65.1 3.0 Certified

PCB 138/163 NA NA 82.2 NA NA 75.9 NA NA NA NA NA NA 63.1 NA 66.4 NA no target Target

PCB 149 49.0 NA 61.3 NA NA 60.5 NA NA 40.2 NA 45.5 NA 48.0 NA 55.9 42.0 49.7 1.2 Certified

PCB 153 75.2 NA below 81.6 53.8 70.6 64.2 NA below NA 61.4 NA 59.4 NA 58.4 38.1 74.0 2.9 Certified

PCB 153/132 NA NA 94.5 NA NA NA NA NA 72.4 NA NA NA NA NA NA NA no target Target

PCB 156 6.39 NA 7.61 NA NA 8.24 NA NA 6.01 NA 6.63 NA 4.53 NA 5.77 4.20 6.52 0.66 Certified

PCB 170 23.1 NA 20.2 23.1 20.1 18.1 21.1 NA 28.6 NA 18.0 NA 18.7 NA 14.2 10.7 22.6 1.4 Certified

PCB 180 43.4 NA 48.3 52.8 36.4 below 41.6 NA 37.8 NA 41.5 NA 39.4 NA below 27.6 44.3 1.2 Certified

PCB 180/193 NA NA NA NA NA 43.2 NA NA NA NA NA NA NA NA 30.8 NA no target Target

PCB 187 24.7 NA 29.0 30.2 24.8 27.7 23.9 NA 24.6 NA 23.9 NA 26.0 NA 21.9 15.3 25.1 1.0 Certified

PCB 194 11.0 NA 11.1 NA NA 10.3 NA NA 8.47 NA 10.8 NA 11.2 NA 9.27 7.76 11.2 1.4 Certified

PCB 195 3.67 NA 3.49 4.73 3.36 4.18 3.48 NA 3.82 NA 4.09 NA 4.37 NA 3.62 <3.20 3.75 0.39 Certified

PCB 206 9.38 NA 9.25 9.55 8.89 7.56 8.44 NA 8.57 NA NA NA 8.80 NA 6.84 <6.40 9.21 0.51 Certified

PCB 209 6.68 NA 6.76 8.21 7.27 7.23 6.43 NA 7.01 NA NA NA 6.54 NA 6.13 3.99 6.81 0.33 Certified

NA = not analyzed; DL=detection limit
36

Table 17. SRM 1944: Laboratory means of three replicates and target values - PBDEs

 (reported as if three figures were significant)

ng/g dry mass Target Values

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15 conc. std dev type

BDE 15 <2 NA NA NA NA 0.951 NA NA NA NA 0.630 NA NA NA NA NA no target Target

BDE 17 <2 NA NA NA NA 0.902 NA NA NA NA 0.842 NA DL NA NA NA no target Target

BDE 25 <2 NA NA NA NA other NA NA NA NA 0.842 NA NA NA NA NA no target Target

BDE 28 coelute NA <2.94 NA NA coelute NA NA NA NA coelute NA DL NA NA NA no target Target

BDE 30 <2 NA NA NA NA < 0.0175 NA NA NA NA <.050 NA NA NA NA NA no target Target

BDE 33 coelute NA NA NA NA coelute NA NA NA NA coelute NA NA NA NA NA no target Target

BDE 28/33 <2 NA NA NA NA 0.242 NA NA NA NA 0.311 NA NA NA NA NA no target Target

BDE 47 1.96 NA <2.94 NA NA 2.15 NA NA NA NA 2.00 NA 2 NA NA NA 1.63 0.41 Target

BDE 49 <2 NA <2.94 NA NA 1.17 NA NA NA NA 0.766 NA NA NA NA NA no target Target

BDE 66 <2 NA <2.94 NA NA 0.125 NA NA NA NA 0.060 NA DL NA NA NA no target Target

BDE 71 <2 NA NA NA NA 0.239 NA NA NA NA < .082 NA DL NA NA NA no target Target

BDE 75 <2 NA NA NA NA 0.039 NA NA NA NA 0.057 NA NA NA NA NA no target Target

BDE 85 <2 NA <2.93 NA NA 0.095 NA NA NA NA < 0.0796 NA DL NA NA NA no target Target

BDE 99 2.14 NA 2.67 NA NA 2.12 NA NA NA NA 1.83 NA <0.6 NA NA NA 1.80 0.35 Target

BDE 100 <2 NA <2.93 NA NA 0.486 NA NA NA NA 0.333 NA DL NA NA NA 0.46 0.12 Target

BDE 116 <2 NA NA NA NA < 0.186 NA NA NA NA 0.173 NA NA NA NA NA no target Target

BDE 118 <2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 119 <2 NA NA NA NA < 0.0980 NA NA NA NA <.0926 NA NA NA NA NA no target Target

BDE 138 <2 NA NA NA NA 1.35 NA NA NA NA <.472 NA DL NA NA NA no target Target

BDE 153 6.75 NA 8.48 NA NA 6.17 NA NA NA NA 7.55 NA 5 NA NA NA 6.53 1.32 Target

BDE 154 <2 NA <2.95 NA NA 1.23 NA NA NA NA 0.793 NA 1 NA NA NA 1.24 0.58 Target

BDE 155 <2 NA NA NA NA 0.111 NA NA NA NA 0.103 NA NA NA NA NA no target Target

BDE 156 <2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 181 <2 NA NA NA NA 0.157 NA NA NA NA < 0.164 NA NA NA NA NA no target Target

BDE 183 36.6 NA 34.0 NA NA 30.9 NA NA NA NA 23.4 NA 28.8 NA NA NA 32.2 7.9 Target

BDE 190 <15 NA NA NA NA 4.58 NA NA NA NA 2.02 NA 4.22 NA NA NA no target Target

BDE 191 <15 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA no target Target

BDE 196 <15 NA NA NA NA NA NA NA NA NA 23.0 NA NA NA NA NA no target Target

BDE 197 <15 NA NA NA NA NA NA NA NA NA 13.7 NA NA NA NA NA no target Target

BDE 203 <15 NA NA NA NA 9.41 NA NA NA NA 9.45 NA NA NA NA NA no target Target

BDE 205 <15 NA NA NA NA NA NA NA NA NA < .165 NA NA NA NA NA no target Target

BDE 206 <15 NA NA NA NA 6.13 NA NA NA NA 7.73 NA NA NA NA NA no target Target

BDE 207 <15 NA NA NA NA <25 NA NA NA NA 18.4 NA NA NA NA NA no target Target

BDE 208 <15 NA NA NA NA <5 NA NA NA NA 1.82 NA NA NA NA NA no target Target

BDE 209 166 NA NA NA NA 101 NA NA NA NA 219 NA 162 NA NA NA 128 84 Target

NA = not analyzed; DL=detection limit
37

Table 18. Mussel TissueXIII (QA07TIS13): z scores (25%) by laboratory - TEO and PAHs 

(z=+1 is 25% higher than the exercise assigned value; z=-1 is 25% lower than the exercise assigned value.)

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15

TEO (percent)

PAHs 

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15

naphthalene 1.1 0.8 -2.1 2.3 -2.0 3.0 0.1 4.7 8.6 0.5 0.4 -1.2

2-methylnaphthalene 1.2 1.7 -1.8 0.7 -1.4 0.4 -0.1 2.0 0.5 -0.7

1-methylnaphthalene 1.7 1.9 -2.1 1.6 -2.3 0.1 0.7 1.5 1.5 -1.1 -1.9

biphenyl 0.0 0.1 -1.7 -0.1 0.2 -1.2 2.7

2,6-dimethylnaphthalene -0.2 -0.1 3.1 -0.4 -1.3 -1.4 0.3

acenaphthylene 0.2 -1.0 -1.6 1.1 0.3 0.9 5.4 -0.9 0.2

acenaphthene 1.6 1.5 -1.8 1.6 -1.4 -0.4 5.5 -1.0

1,6,7-trimethylnaphthalene -0.2 3.3 -2.6 -0.7 0.2

fluorene 0.4 1.2 -2.6 -0.2 -0.6 0.3 -0.9 -1.2

phenanthrene 1.6 1.8 -1.9 1.4 -0.5 0.2 -2.4 -0.8 0.3 0.4 -0.8

anthracene 0.3 -2.9 0.1 0.4 -2.1 2.6 -0.6 2.3

1-methylphenanthrene 1.0 1.4 -1.4 0.4 -0.9 -0.1 1.3 -0.6 -0.9

fluoranthene 0.8 1.6 -1.6 0.6 0.1 -0.2 -1.5 -1.0 -0.3 -0.1 0.2

pyrene 0.8 1.4 -1.4 0.7 0.0 -1.0 -0.6 -1.0 -0.1 -0.5 -0.3 -0.1

benz[a]anthracene 0.4 1.4 -1.5 0.1 -0.7 -1.0 2.9 0.2 -0.1 0.0 1.4

chrysene -0.7 -0.4 1.1 0.6 2.2

triphenylene

chrysene/triphenylene 1.4 0.5 -1.7 -0.5 0.3

benzo[b ]fluoranthene -0.3 0.9 -0.6 -0.2 -0.8 1.0 0.1 -0.5 1.4

benzo[j ]fluoranthene 0.0

benzo[k ]fluoranthene 0.1 -1.1 1.2 -0.1 3.7

benzo[j+k ]fluoranthene -0.1 -0.7 0.8

benzo[b+j+k ]fluoranthene

benzo[e]pyrene 0.8 1.3 -1.3 0.5 -0.4 -1.3 0.3 0.1

benzo[a]pyrene 0.4 0.4 1.0 0.3 -1.6 -0.5 2.1 7.5 27.8

perylene 0.2 0.4 4.4 0.0 -0.8 0.1 2.4

indeno[1,2,3-cd]pyrene -0.2 0.9 -1.9 -0.6 1.6 -1.7 0.1 13.9

dibenz[a,h]anthracene 0.2 0.6 0.4 -0.6 3.6

benzo[ghi]perylene 0.9 1.4 -0.6 0.6 -1.1 -1.8 0.8 0.5 7.3
38

Table 19. Mussel TissueXIII (QA07TIS13): z scores (25%) by laboratory - Pesticides

(z=+1 is 25% higher than the exercise assigned value; z=-1 is 25% lower than the exercise assigned value.)

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15

alpha-HCH (a-BHC)

hexachlorobenzene

gamma-HCH (g-BHC,lindane)

beta-HCH (b-BHC) -0.1 -0.1 0.2 5.6

heptachlor

aldrin

heptachlor epoxide

oxychlordane

gamma-chlordane -0.4 1.3 0.5 -0.8 1.2 -0.1 0.3 -1.6

2,4'-DDE -1.5 2.9 -2.2 -1.6 -1.4 -1.4 0.4 4.6

endosulfan I

cis-chlordane (alpha-chlordane) -0.5 2.0 -0.6 -0.7 -0.5 -0.4 -0.9 -0.5 2.9 -1.3

trans-nonachlor 0.2 2.0 -0.5 -0.8 0.2 0.0 -0.2 -0.6 -0.5

dieldrin -0.6 2.4 -0.8 -0.4 0.0 7.2 1.4 -2.0

4,4'-DDE -0.6 2.0 -0.7 -0.5 -0.6 -0.3 -0.8 0.0 0.1 -0.8 2.5 -1.8

2,4'-DDD -0.4 -0.2 -0.7 -0.2 1.3 1.4 -1.4

endrin

endosulfan II

4,4'-DDD -0.7 0.3 -0.2 -0.8 -1.0 -1.1 0.6 2.2 1.9 -1.9

2,4'-DDT

cis-nonachlor -0.3 1.8 -1.2 -0.5 0.1 0.1

4,4'-DDT -0.1 1.3 -0.1 -0.3 -0.6 -0.2 34.2

mirex

endosulfan sulfate

chlorpyrifos
39

Table 20 Mussel TissueXIII (QA07TIS13): z scores (25%) by laboratory - PCBs

(z=+1 is 25% higher than the exercise assigned value; z=-1 is 25% lower than the exercise assigned value.)

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15

PCB 8 -1.4 -0.4 -2.2 -1.6 -1.8 0.1 3.2 -1.1 3.0

PCB 18 -1.5 1.4 -0.7 -1.1 -1.9 -0.4 -1.5 3.8 -0.6 0.9

PCB 28 0.3 2.8 1.0 0.8 0.1 -1.3 -0.7 0.6 -0.1 -2.2

PCB 31 0.0 8.9 0.2 -0.2 1.0 0.0

PCB 44 0.1 0.7 -0.9 -0.2 0.3 -0.8 -0.2 -2.1 0.3 0.4 -1.9

PCB 49 -0.3 1.8 -0.8 0.7 -0.1 -0.2 -1.2

PCB 52 -0.4 1.4 -0.1 -0.1 -1.0 -0.4 0.2 -1.9 0.7 -0.4 -2.4

PCB 66 0.0 1.2 0.0 0.1 -0.1 -0.1 -0.8 -1.2 0.1 -0.3 -2.5

PCB 95 -0.5 0.9 -0.8 0.2 -1.0 0.7 -0.5

PCB 99 -0.2 0.5 0.0 -0.2 -0.5 0.3 0.9 -1.4

PCB 101 -0.3 0.9 0.0 0.0 -0.7 0.3 -0.2 -1.9 0.5 -0.3 -1.8

PCB 105 -0.3 1.9 0.1 0.9 -0.4 -0.2 -1.0 -0.7 0.7 -0.3 -1.4

PCB 118 -0.7 1.3 0.4 0.0 -0.8 -0.3 -0.1 -1.4 0.6 -0.5 -2.0

PCB 128 -0.8 1.4 1.3 -0.6 -0.9 0.5 -1.2 -0.9 1.0 -0.6

PCB 138 0.9 2.0 0.5 0.5 0.8 -1.9

PCB 138/163 1.1 -0.6 -0.9 -0.1 -0.4

PCB 149 -0.3 1.5 -0.2 -1.1 -0.5 0.1 0.0 -0.8

PCB 153 -0.4 0.6 0.0 -0.2 -0.2 -1.2 0.3 -0.1 -1.8

PCB 153/132

PCB 156 -0.4 -0.2 -0.8 2.6 -1.8 -0.1 -1.1

PCB 170 -0.5 1.2 0.5 -3.6 -0.9 0.3 0.3 0.0 -0.6 -0.7 0.4

PCB 180 -0.4 2.0 0.2 -0.4 -0.4 -0.4 -0.1 0.1 -0.1 -0.4

PCB 187 -0.4 1.5 -0.1 0.2 -0.4 -0.4 -0.1 -0.6 -0.1 -0.3 -1.6

PCB 194 -0.6 0.7 -0.9 -0.8 -0.3 2.4 -0.7

PCB 195

PCB 206

PCB 209
40

Table 21 Mussel TissueXIII (QA07TIS13): z scores (25%) by laboratory - PBDEs

(z=+1 is 25% higher than the exercise assigned value; z=-1 is 25% lower than the exercise assigned value.)

Laboratory No. 1a 3 4 5 6 7 8 9 10 12 13 14 15

BDE 15

BDE 17

BDE 25

BDE 28

BDE 30

BDE 33

BDE 28/33

BDE 47 -0.3 0.6 -1.4 -0.3

BDE 49

BDE 66

BDE 71

BDE 75

BDE 85

BDE 99 0.3 0.6 -0.9

BDE 100 -0.2 0.3 -1.7 -0.1

BDE 116

BDE 118

BDE 119

BDE 138

BDE 153

BDE 154

BDE 155

BDE 156

BDE 181

BDE 183

BDE 190

BDE 191

BDE 196

BDE 197

BDE 203

BDE 205

BDE 206

BDE 207

BDE 208

BDE 209
41

Table 22. Marine Sediment XIII (QA05SED13): z scores (25% by laboratory)- water, TOC, and PAHs 

(z=+1 is 25% higher than the exercise assigned value; z=-1 is 25% lower than the exercise assigned value.)

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15

Water (percent) 0.1 0.2 0.3 -0.3 0.2 0.3 0.1 0.3 0.2 -0.9 -0.1 0.1 -0.2 -0.2 -0.1

TOC -1.3 0.5 0.4 0.2 0.2

PAHs

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15

naphthalene 2.9 -1.5 2.6 -1.0 3.1 -2.9 -1.2 0.5 -3.7 1.2 -2.5 2.7 -0.1 1.9 -1.9

2-methylnaphthalene 2.4 3.0 -2.5 1.8 -2.8 -1.0 0.3 -3.7 1.0 -2.1 3.8 0.5 1.2 -2.0

1-methylnaphthalene 0.9 -1.3 1.0 2.9 1.1 -2.7 -1.1 -0.1 -3.5 0.2 -2.1 3.7 0.4 0.8

biphenyl 0.2 0.7 -1.4 0.0 -2.8 -1.7 -1.5 4.6 1.2 0.5

2,6-dimethylnaphthalene 1.7 2.2 -2.9 1.3 -2.2 -0.6 -0.4 1.1 0.6 0.7 -1.6

acenaphthylene -0.6 -0.3 -3.0 -0.2 -0.9 -1.1 2.7 -0.4 -3.2 1.1 -0.3 7.5 -0.1 1.1 -2.2

acenaphthene 1.2 -1.0 1.3 -0.9 1.0 -1.4 2.4 -0.9 -3.4 0.2 -1.8 0.7 1.0 1.6

1,6,7-trimethylnaphthalene -1.2 3.1 -2.6 0.1 1.2 -0.8 0.1

fluorene 0.2 0.8 1.3 -1.2 -1.1 -0.2 -0.7 0.4 -0.3 -3.5 0.4 -0.1 2.3 2.1 -0.2 -0.6

phenanthrene 1.2 -0.5 1.4 0.4 0.0 1.0 -0.6 -0.6 1.6 -3.5 0.4 -1.4 0.8 -0.3 0.3 0.0

anthracene 0.2 -0.2 0.3 -1.0 -0.9 0.0 -1.7 0.0 2.2 -3.6 0.8 -1.9 6.8 -0.7 2.2 -2.1

1-methylphenanthrene 0.4 0.4 0.4 -0.4 -1.2 -0.5 1.5 0.3 0.8 -0.8 -1.3

fluoranthene 0.4 -0.8 0.4 0.6 0.3 0.4 -0.3 -0.8 -0.7 -3.6 1.1 -1.9 -0.7 -0.9 -0.4 0.5

pyrene 0.5 -0.5 0.4 0.3 0.1 0.5 -0.4 -1.1 0.4 -3.6 0.5 -1.6 0.0 -0.5 -0.3 0.5

benz[a ]anthracene 0.0 -0.6 0.6 0.8 -0.4 -0.1 -0.2 -0.8 -0.4 -3.5 0.1 -1.4 0.8 -0.5 -0.3 0.6

chrysene 0.2 -0.5 1.0 -0.5 -0.2 -0.4 -3.5 0.5 -1.2 -0.5 0.5

triphenylene

chrysene/triphenylene 0.3 0.2 -1.7 -0.3 -0.3

benzo[b ]fluoranthene -1.5 -0.5 0.0 2.7 -0.4 -0.6 -0.5 -3.5 -0.6 -1.6 1.8 0.2 -0.8 0.3

benzo[j ]fluoranthene

benzo[k ]fluoranthene -0.2 -0.2 -0.4 2.0 -1.6 -3.5 1.2 -0.6 -0.7 2.3

benzo[j+k ]fluoranthene 0.5 0.4 -1.3 0.4

benzo[b+j+k ]fluoranthene

benzo[e ]pyrene 0.4 0.3 0.8 3.6 0.4 -0.3 -1.1 -0.5 0.0 -1.0 0.0 -0.1

benzo[a ]pyrene 0.6 -0.8 0.6 0.3 -0.3 0.6 -0.5 -0.5 -0.8 -3.3 -0.3 -1.5 0.6 -0.8 0.1 0.5

perylene 0.1 0.2 -0.6 -2.4 0.1 -0.3 -1.8 0.6 0.8 -0.6 0.0 -0.3

indeno[1,2,3-cd ]pyrene 0.6 -1.3 0.9 -0.1 -0.3 0.2 -0.6 -0.6 -1.2 -3.6 -0.3 -1.3 1.9 -1.1 -0.1 0.7

dibenz[a,h ]anthracene 0.4 -0.2 -0.5 -0.8 -1.3 -0.8 -1.6 -3.5 0.4 -0.1 3.0 0.3 0.9 1.7

dibenz[a,h +a,c ]anthracene

benzo[ghi ]perylene 0.7 -0.7 1.0 -0.4 -0.6 0.5 -0.9 -0.4 -1.4 -3.5 -0.3 -1.4 0.0 -0.5 0.6 0.8
42

Table 23. Marine Sediment XIII (QA05SED13): z scores (25% by laboratory)- pesticides

(z=+1 is 25% higher than the exercise assigned value; z=-1 is 25% lower than the exercise assigned value.)

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15

alpha-HCH (a-BHC)

hexachlorobenzene 0.2 0.2 0.2 -0.9 0.3 0.1 0.1 -0.9 0.6 1.4 -1.4

gamma-HCH (g-BHC,lindane)

beta-HCH (b-BHC)

heptachlor

aldrin

heptachlor epoxide -0.1 68.9 0.6 -0.3 -0.2 12.2

oxychlordane

gamma-chlordane -0.2 1.6 0.0 -0.1 0.6 -3.5 0.2 6.8 -2.0

2,4'-DDE 0.2 1.1 -0.8 0.0 -0.7 -2.0 -0.1 0.2 8.3 1.6 -1.5

endosulfan I

cis-chlordane (alpha-chlordane) 0.4 -1.1 1.1 -1.0 0.4 -0.1 -0.7 -3.4 1.7 1.3 -2.0

trans-nonachlor 0.3 0.3 -1.3 0.1 1.2 -0.8 0.3 -0.2 0.2

dieldrin 0.8 0.9 0.8 0.5 -3.2 1.6 21.9 -1.5

4,4'-DDE 0.2 -0.9 0.4 0.2 -0.7 -0.6 0.6 0.6 -0.1 -3.6 -0.3 1.0 0.7 -1.7

2,4'-DDD 0.0 1.1 -0.1 0.5 -0.9 -0.1 -0.3 2.4 0.3 -1.4

endrin

endosulfan II

4,4'-DDD 0.6 -1.4 2.2 -0.4 0.5 1.2 1.5 0.2 -3.5 -0.4 0.4 1.0 -1.3

2,4'-DDT -1.1 2.3 -1.3 -0.4 1.8 -1.3

cis-nonachlor 0.6 0.6 0.6 -0.2 0.0 -1.7

4,4'-DDT 0.4 -0.9 1.8 -0.6 0.4 2.1 0.1 -1.2 -3.6 0.7 1.5 4.4 -0.9

mirex

endosulfan sulfate

chlorpyrifos
43

Table 24. Marine Sediment XIII (QA05SED13): z scores (25% by laboratory)- PCBs

(z=+1 is 25% higher than the exercise assigned value; z=-1 is 25% lower than the exercise assigned value.)

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15

PCB 8 0.1 1.7 -0.3 0.2 -0.8 0.2 0.6 1.8 -2.8 -0.4 -1.3

PCB 18 -0.4 1.2 1.6 0.3 -0.2 0.7 -0.9 1.0 -1.1 -2.2 0.0 -1.0

PCB 28 -0.3 0.6 1.0 -1.2 0.7 -0.4 0.1 -0.2 -0.4 0.7 -1.0 -2.3

PCB 31 0.2 0.1 0.7 1.6 0.3 0.0 -2.0 -0.9 -1.8

PCB 44 0.6 -0.3 1.0 -1.0 0.8 -0.2 -0.4 1.3 -2.0 -0.6 -0.5 -2.1

PCB 49 0.2 0.3 0.0 0.3 0.0 -0.2 -0.9 -1.8

PCB 52 0.2 0.2 1.0 -0.8 0.0 0.2 0.4 -0.1 -1.8 2.7 -0.9 -2.0

PCB 66 -0.1 0.8 1.2 -0.8 0.4 0.2 -0.8 -0.4 -1.3 0.3 -0.9 -2.1

PCB 95 -0.2 0.3 0.0 0.2 -0.4 -0.2 0.8 -0.6

PCB 99 0.3 -0.3 0.4 0.0 -0.4 -0.4 0.1 -0.1 -1.9

PCB 101 -0.8 0.2 2.2 -0.8 -0.6 0.4 0.0 0.0 -1.6 0.3 -1.0 -1.8

PCB 105 -0.2 0.8 1.4 -0.9 -0.3 1.3 -0.6 -0.1 -1.0 -0.2 -1.2 -2.0

PCB 118 -0.5 0.9 1.7 -0.7 -0.5 0.8 -0.1 -0.2 -1.2 -0.5 -1.0 -2.1

PCB 128 -0.4 0.9 3.0 -0.5 -0.1 1.8 -0.4 0.3 -0.6 0.1 -0.6 -1.2

PCB 138 0.0 2.5 -1.0 0.3 -1.5 -0.3 -2.1

PCB 138/163 0.8 -0.1 -1.1 0.1 -0.8

PCB 149 0.2 1.0 0.5 -0.5 -0.1 0.2 0.1 -0.3 -0.9

PCB 153 -0.7 1.7 -1.0 -0.3 0.6 -0.1 -1.2 0.9 -1.0 -2.1

PCB 153/132

PCB 156 0.5 0.7 0.8 -0.4 0.7 -0.6 -0.7 -1.7

PCB 170 -0.5 0.1 1.6 0.1 -0.7 0.6 0.2 -0.3 0.2 0.0 -1.2 -2.0

PCB 180 -0.2 0.4 1.4 -0.8 -0.1 -0.5 -0.1 0.1 -0.1 -1.9

PCB 180/193

PCB 187 -0.3 0.2 1.2 -0.6 -0.3 0.7 -0.2 0.2 -1.3 0.0 -0.9 -2.0

PCB 194 0.0 0.6 0.0 -0.3 1.2 0.2 0.5 -0.7 -1.4

PCB 195 -0.6 -0.6 1.3 -1.0 -0.4 -0.3 0.7 -1.3 1.9 -0.9

PCB 206 -0.7 0.8 1.5 -0.1 -0.7 0.3 -0.2 1.4 0.2 -1.0

PCB 209 0.0 0.0 1.7 -0.1 -0.1 0.5 -1.2 0.1 0.3 -1.0 -2.0
44

Table 25. Marine Sediment XIII (QA05SED13): z scores (25% by laboratory)- PBDEs

(z=+1 is 25% higher than the exercise assigned value; z=-1 is 25% lower than the exercise assigned value.)

Laboratory No. 1a 2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15

BDE 15

BDE 17 -0.3 -0.2 0.5

BDE 25

BDE 28

BDE 30

BDE 33

BDE 28/33

BDE 47 0.0 0.3 -0.5 0.4 -0.1 -0.1

BDE 49 -0.1 1.3 -0.3 -0.9

BDE 66 0.8 -0.6 -0.1

BDE 71

BDE 75

BDE 85

BDE 99 -0.1 1.3 -0.5 -0.1 0.4 -0.9

BDE 100

BDE 116

BDE 118

BDE 119

BDE 138

BDE 153 0.2 1.2 -0.4 0.0 -1.0 0.0

BDE 154 0.6 -0.1 -0.1 -0.4

BDE 155

BDE 156

BDE 181

BDE 183 0.2 0.5 0.3 -0.9 -0.5 0.4

BDE 190

BDE 191

BDE 196

BDE 197

BDE 203

BDE 205

BDE 206

BDE 207

BDE 208

BDE 209 -0.3 -0.7 1.3 -0.2
45

Table 26. Mussel Tissue XIII (QA07TIS13): RSDs for three replicates - TEO and PAHs

Lab 1a Lab 3 Lab 4 Lab 5 Lab 6 Lab 7

Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

TEO or lipid 2.9% 5.3% 2.1% 4.7% 5.7% 1.3% 19.8% 4.0%

PAH ANALYSES Lab 1a Lab 3 Lab 4 Lab 5 Lab 6 Lab 7

Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

naphthalene 2.5% 1.7% 2.6% 9.2% 16.4% 10.7% 3.8% 15.2% 21.3%

2-methylnaphthalene 5.4% 7.6% 1.3% 5.5% 21.1% 10.1% 6.3% 7.8% 19.7%

1-methylnaphthalene 0.7% 2.2% 1.2% 4.9% 18.9% 28.5% 6.4% 10.7% 15.5%

biphenyl 0.4% 4.4% 1.8% 9.8% 11.8% 12.7% 4.6% 6.5% 10.3%

2,6-dimethylnaphthalene 2.0% 2.0% 0.5% 1.9% 36.6% 14.0% 1.3% 8.6% 9.9%

acenaphthylene 4.5% 13.1% 3.9% 26.4% 2.6% 11.0% 5.4% 5.6%

acenaphthene 2.2% 3.7% 0.8% 0.6% 15.0% 10.2% 10.7% 11.0% 1.7%

1,6,7-trimethylnaphthalene 1.1% 8.0% 6.7%

fluorene 6.5% 2.6% 1.3% 0.6% 11.7% 5.8% 26.6% 9.2% 9.6%

phenanthrene 4.2% 3.2% 1.6% 0.4% 33.4% 35.1% 1.5% 10.8% 16.1%

anthracene 4.4% 4.9% 7.8% 4.4% 15.1% 34.4% 40.6% 10.1% 7.6%

1-methylphenanthrene 3.8% 4.3% 1.8% 0.5% 22.5% 24.9% 5.4% 8.4% 11.6%

fluoranthene 5.4% 0.9% 1.7% 0.7% 6.7% 10.3% 3.7% 14.0% 3.2%

pyrene 2.2% 1.7% 1.9% 0.2% 6.2% 13.2% 3.6% 10.3% 26.7%

benz[a]anthracene 6.7% 1.1% 0.6% 9.0% 19.1% 23.1% 3.8% 16.0% 10.4%

chrysene 2.3% 2.1% 7.0% 9.9% 3.8% 15.8% 20.5%

triphenylene 5.5% 4.6%

benzo[b ]fluoranthene 2.6% 3.2% 1.1% 10.5% 9.6% 22.6% 2.3% 19.5% 11.3%

benzo[j]fluoranthene 2.3% 1.3%

benzo[k ]fluoranthene 2.0% 0.9% 14.5% 23.4% 5.2% 18.6% 1.9%

benzo[e]pyrene 3.3% 5.8% 0.7% 10.7% 7.5% 9.1% 10.5% 17.3% 4.8%

benzo[a]pyrene 2.3% 3.3% 3.2% 11.3% 11.5% 30.3% 11.5% 43.1% 12.6%

perylene 1.7% 4.2% 3.9% 10.0% 42.2% 48.5% 0.6% 31.8% 4.3%

indeno[1,2,3-cd]pyrene 4.9% 2.4% 1.9% 10.8% 35.2% 6.7% 14.4% 5.7%

dibenz[a,h]anthracene 3.9% 3.2% 47.4% 23.7%

benzo[ghi]perylene 4.0% 2.8% 2.6% 10.5% 28.8% 36.9% 7.0% 9.7% 4.2%
46

Table 26 (cont). Mussel Tissue XIII (QA07TIS13): RSDs for three replicates - TEO and PAHs

Lab 8 Lab 9 Lab 10 Lab 13 Lab 14 Lab 15

Tissue XIII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

TEO or lipid 61.2% 1.7% 1.9% 19.9% 8.0%

PAH ANALYSES Lab 8 Lab 9 Lab 10 Lab 13 Lab 14 Lab 15

Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

naphthalene 46.1% 10.6% 10.2% 5.5% 23.2% 8.7%

2-methylnaphthalene 17.6% 17.1% 8.1%

1-methylnaphthalene 9.8% 12.7% 1.3% 23.9% 8.8%

biphenyl 8.4%

2,6-dimethylnaphthalene 10.1%

acenaphthylene 18.7%

acenaphthene 41.3%

1,6,7-trimethylnaphthalene 12.7% 2.4%

fluorene 18.9%

phenanthrene 10.9% 1.5% 3.0% 13.8% 5.4%

anthracene 5.5% 19.3% 2.4%

1-methylphenanthrene 2.4% 1.0% 10.3% 17.9%

fluoranthene 5.1% 17.9% 5.1% 6.2%

pyrene 21.7% 12.9% 0.9% 2.6% 6.0% 6.0%

benz[a]anthracene 15.8% 3.2% 3.9%

chrysene 11.8% 3.2% 3.7% 8.5%

triphenylene

benzo[b ]fluoranthene 11.7% 4.8% 44.0%

benzo[j ]fluoranthene

benzo[k ]fluoranthene 9.8% 36.2%

benzo[e]pyrene 3.7% 22.4%

benzo[a]pyrene 53.6%

perylene 3.0%

indeno[1,2,3-cd]pyrene 3.9%

dibenz[a,h]anthracene 8.6%

benzo[ghi]perylene 3.8%
47

Table 27. Mussel Tissue XIII (QA07TIS13): RSDs for three replicates - Pesticides

Lab 1a Lab 3 Lab 4 Lab 5 Lab 6 Lab 7

Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

alpha-HCH (a-BHC) 17.4%

hexachlorobenzene 37.5% 20.7% 8.4% 0.4%

gamma-HCH (g-BHC,lindane) 12.4%

beta-HCH (b-BHC) 4.0% 1.9%

heptachlor 16.8%

aldrin 15.6%

heptachlor epoxide 2.1% 1.3% 6.1%

oxychlordane 3.4%

gamma-chlordane 8.6% 2.6% 0.5% 2.6% 19.6% 46.8% 1.1% 9.3% 12.5%

2,4'-DDE 6.3% 10.7% 0.7% 5.3% 22.1% 0.7% 4.7%

endosulfan I

cis-chlordane (alpha-chlordane) 2.0% 8.8% 0.5% 4.3% 10.7% 21.3% 2.7% 25.7% 12.2% 6.6% 4.0%

trans-nonachlor 1.3% 2.7% 0.9% 3.2% 16.1% 31.0% 2.2% 7.0% 0.6%

dieldrin 3.1% 1.9% 12.9% 7.2% 56.1% 1.2% 7.3% 3.0%

4,4'-DDE 3.9% 4.2% 1.1% 3.8% 8.5% 12.5% 2.4% 1.7% 0.8% 1.6% 6.9%

2,4'-DDD 3.6% 3.3% 7.2% 5.3% 3.0% 4.0%

endrin 11.1%

endosulfan II

4,4'-DDD 3.3% 1.6% 6.3% 8.0% 2.2% 3.0% 1.2% 7.8% 3.8%

2,4'-DDT 15.8%

cis-nonachlor 1.4% 2.5% 8.0% 13.7% 0.0%

4,4'-DDT 7.1% 5.8% 27.9% 11.8% 16.5% 1.6% 7.9% 2.6%

mirex 1.9%

endosulfan sulfate

chlorpyrifos
48

Table 27 (cont). Mussel Tissue XIII (QA07TIS13): RSDs for three replicates - Pesticides

Lab 8 Lab 9 Lab 10 Lab 13 Lab 14 Lab 15

Tissue XIII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

alpha-HCH (a-BHC) 45.8% 31.1% 94.3%

hexachlorobenzene 70.0%

gamma-HCH (g-BHC,lindane) 56.7%

beta-HCH (b-BHC) 23.3% 29.2% 78.1%

heptachlor 0.0% 106.5%

aldrin 51.9%

heptachlor epoxide 72.5% 20.2%

oxychlordane

gamma-chlordane 14.8% 16.2% 27.9% 36.6%

2,4'-DDE 31.2% 33.2% 3.3% 12.4%

endosulfan I #DIV/0! 33.6%

cis-chlordane (alpha-chlordane) 14.1% 8.2% 1.0% 2.2% 17.0%

trans-nonachlor 23.2% 17.7% 13.7% 17.8% 9.8%

dieldrin 10.6% 10.2% 58.7% 4.1% 1.6%

4,4'-DDE 18.8% 29.3% 8.3% 29.8% 52.1% 0.6% 1.6% 11.4%

2,4'-DDD 4.5% 19.5% 1.5% 5.3% 23.2%

endrin 26.1% 18.9% 144.0% 55.3%

endosulfan II 69.2% 11.2% 58.7%

4,4'-DDD 13.3% 0.0% 11.3% 24.4% 75.2% 2.3% 12.7% 12.6%

2,4'-DDT 6.4%

cis-nonachlor 21.1% 5.6% 18.4% 27.4%

4,4'-DDT 12.1% 22.9% 52.7%

mirex 15.1% 11.3% 3.1%

endosulfan sulfate 20.9%

chlorpyrifos 32.3% 41.7%
49

Table 28. Mussel Tissue XIII (QA07TIS13): RSDs for three replicates - PCBs

Lab 1a Lab 3 Lab 4 Lab 5 Lab 6 Lab 7

Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

PCB 8 7.1% 5.0% 31.4% 78.4% 9.6%

PCB 18 6.4% 7.2% 2.5% 5.7% 20.9% 7.0% 13.6% 0.0% 8.8%

PCB 28 5.2% 1.5% 2.9% 2.5% 17.8% 13.6% 0.7% 1.1% 3.1% 4.7% 5.0%

PCB 31 4.8% 4.1% 1.0% 1.4% 5.1%

PCB 44 3.2% 2.3% 1.4% 3.3% 12.8% 8.3% 2.0% 3.8% 2.6% 0.1%

PCB 49 3.2% 2.7% 0.6% 1.1% 0.7%

PCB 52 3.6% 2.8% 0.6% 1.8% 12.5% 8.5% 1.4% 2.0% 1.1% 1.3% 7.0%

PCB 66 3.3% 3.1% 0.8% 1.6% 9.4% 11.7% 1.3% 2.9% 2.2% 1.5% 6.6%

PCB 95 4.0% 2.0% 0.8% 2.1% 0.6%

PCB 99 2.9% 3.1% 0.7% 1.5% 0.4%

PCB 101 5.1% 2.3% 1.4% 1.6% 12.8% 4.8% 1.6% 2.1% 1.7% 1.7% 7.4%

PCB 105 2.5% 2.7% 1.9% 2.1% 10.7% 13.3% 2.1% 2.2% 5.7% 8.6% 12.2%

PCB 118 3.2% 0.7% 3.2% 2.0% 26.0% 39.1% 2.2% 2.7% 4.7% 1.5% 6.1%

PCB 128 2.8% 3.2% 1.4% 47.1% 14.6% 13.1% 2.4% 1.1% 3.6% 2.3% 2.0%

PCB 138 3.1% 2.6% 1.6% 1.7% 10.3% 5.2% 2.0% 0.6% 2.1% 2.5% 5.7%

PCB 149 0.9% 1.2% 2.0% 1.4% 2.1%

PCB 153 2.6% 2.6% 9.7% 4.5% 1.5% 0.6% 0.9% 7.4% 10.0%

PCB 156 2.9% 1.3% 2.8% 2.9% 4.3%

PCB 170 3.8% 1.8% 3.3% 4.2% 9.9% 19.9% 3.0% 16.7% 8.4%

PCB 180 1.9% 1.4% 0.5% 2.2% 10.6% 9.1% 2.5% 2.0% 1.3% 2.9% 7.0%

PCB 187 2.1% 1.1% 1.0% 1.7% 10.0% 3.9% 1.6% 1.3% 1.5% 6.8% 9.6%

PCB 194 6.5% 0.6% 4.0% 2.6% 0.9%

PCB 195 7.0%

PCB 206 6.6%

PCB 209 4.3%
50

Table 28 (cont). Mussel Tissue XIII (QA07TIS13): RSDs for three replicates - PCBs

Lab 8 Lab 9 Lab 10 Lab 13 Lab 14 Lab 15

Tissue XIII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977 Tissue XII SRM 2977

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

PCB 8 13.3% 5.6% 2.4% 9.3%

PCB 18 14.8% 20.2% 1.5% 2.7% 2.5%

PCB 28 19.4% 12.5% 6.4% 11.8% 5.5%

PCB 31 21.3% 19.1% 4.2% 7.4%

PCB 44 13.0% 48.0% 0.9% 0.8% 10.4% 1.3%

PCB 49 8.9% 3.9% 6.0% 6.0%

PCB 52 11.5% 3.9% 1.5% 0.4% 5.5% 7.7%

PCB 66 20.0% 2.3% 1.1% 1.8% 1.7% 5.5%

PCB 95 3.9% 7.6% 1.9% 5.2% 10.0%

PCB 99 0.8% 7.8% 2.6% 0.5% 8.1% 8.4%

PCB 101 0.8% 14.8% 2.1% 5.0% 9.1% 4.0%

PCB 105 12.3% 4.3% 4.0% 6.4% 2.1% 3.2%

PCB 118 5.3% 9.5% 2.6% 0.2% 6.6% 1.8%

PCB 128 13.6% 4.9% 3.6% 1.3% 7.0%

PCB 138 11.6% 7.3% 3.7% 3.5% 2.4% 0.5%

PCB 149 7.4% 17.0% 7.7% 8.6% 4.6% 3.9%

PCB 153 3.3% 5.8% 3.1% 5.9% 2.7% 3.2%

PCB 156 20.9% 8.5% 6.2% 3.4% 10.6%

PCB 170 20.8% 21.5% 3.7% 2.3% 5.1% 5.3%

PCB 180 16.6% 23.4% 2.5% 5.0% 6.3%

PCB 187 4.8% 22.0% 7.9% 1.4% 7.8% 0.4%

PCB 194 18.4% 24.7% 16.9% 5.9% 6.0%

PCB 195 19.1%

PCB 206 31.9%

PCB 209 5.5%
51

Table 29. Mussel Tissue XIII (QA07TIS13): RSDs for three replicates - PBDEs

Lab 1a Lab 3 Lab 4 Lab 5 Lab 6 Lab 7

Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

BDE 15

BDE 17

BDE 25

BDE 28 1.2% 2.4%

BDE 30

BDE 33

BDE 47 2.3% 4.0% 2.0% 2.9%

BDE 49 1.3% 3.9%

BDE 66 3.5% 1.6%

BDE 71

BDE 75

BDE 85

BDE 99 2.8% 1.6% 3.4% 3.4%

BDE 100 1.7% 4.5% 0.5% 2.0%

BDE 116

BDE 118

BDE 119

BDE 138

BDE 153

BDE 154

BDE 155

BDE 156

BDE 181

BDE 183

BDE 190

BDE 191

BDE 196

BDE 197

BDE 203

BDE 205

BDE 206

BDE 207

BDE 208

BDE 209
52

Table 29 (cont). Mussel Tissue XIII (QA07TIS13): RSDs for three replicates - PBDEs

Lab 8 Lab 9 Lab 10 Lab 13 Lab 14 Lab 15

Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977 Tissue XIII SRM 2977

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

BDE 15

BDE 17

BDE 25

BDE 28 3.1% 6.1%

BDE 30

BDE 33

BDE 47 4.3% 0.3%

BDE 49

BDE 66

BDE 71

BDE 75

BDE 85

BDE 99 4.3% 4.9%

BDE 100 10.6% 10.0%

BDE 116

BDE 118

BDE 119

BDE 138

BDE 153

BDE 154

BDE 155

BDE 156

BDE 181

BDE 183

BDE 190

BDE 191

BDE 196

BDE 197

BDE 203

BDE 205

BDE 206

BDE 207

BDE 208

BDE 209
53

Table 30. Marine Sediment XIVI (QA07SED14): RSDs for three replicates - Water, TOC. and PAHs

Lab 1a Lab 2 Lab 3 Lab 4 Lab 5 Lab 6

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

Water 0.6% 8.0% 0.8% 2.5% 1.4% 2.1%

TOC 38.1% 17.9% 6.0% 1.8%

PAH ANALYSES Lab 1a Lab 2 Lab 3 Lab 4 Lab 5 Lab 6

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

naphthalene 2.6% 3.5% 10.4% 1.2% 3.0% 3.7% 3.9% 26.2% 4.5%

2-methylnaphthalene 3.0% 1.8% 7.6% 2.9% 3.8% 12.7% 8.7% 1.7%

1-methylnaphthalene 4.7% 3.2% 25.2% 3.5% 2.8% 4.2% 7.1% 25.8% 0.4%

biphenyl 5.7% 8.3% 3.0% 3.8% 6.0% 26.7% 0.0%

2,6-dimethylnaphthalene 4.4% 0.3% 3.7% 4.1% 10.9% 26.9% 0.9%

acenaphthylene 6.8% 2.8% 22.7% 2.2% 5.3% 7.2% 6.6% 22.7% 4.6%

acenaphthene 4.9% 3.4% 4.1% 5.6% 3.0% 1.5% 19.6% 3.1%

1,6,7-trimethylnaphthalene 8.2% 2.2% 2.5%

fluorene 0.8% 6.0% 19.4% 23.1% 3.2% 3.7% 6.6% 30.4% 3.5% 0.2% 4.1%

phenanthrene 3.5% 1.5% 15.1% 7.2% 3.7% 3.2% 12.9% 17.1% 2.7% 2.4% 1.6%

anthracene 2.4% 2.6% 11.2% 6.6% 4.8% 1.9% 16.2% 26.7% 3.9% 0.4% 1.5%

1-methylphenanthrene 4.2% 1.5% 2.5% 4.8% 19.4% 18.6% 3.8%

fluoranthene 1.2% 0.2% 11.9% 10.5% 4.2% 3.4% 16.4% 21.1% 2.7% 2.8% 2.7%

pyrene 0.9% 0.5% 20.1% 9.2% 4.1% 4.6% 11.6% 22.0% 2.6% 2.5% 3.7%

benz[a]anthracene 0.4% 0.7% 22.8% 12.0% 2.8% 2.5% 6.1% 20.1% 3.0% 2.0% 1.4%

chrysene 1.5% 0.4% 18.2% 11.4% 8.8% 19.6% 2.0% 0.2% 5.2%

triphenylene 3.5% 3.0%

benzo[b ]fluoranthene 0.8% 3.3% 24.4% 9.6% 4.7% 2.4% 5.1% 16.6% 2.3%

benzo[j]fluoranthene 1.9% 5.0%

benzo[k ]fluoranthene 4.9% 1.0% 7.7% 23.1% 6.3% 16.1% 3.5%

benzo[e]pyrene 1.6% 1.1% 2.9% 1.1% 4.4% 16.5% 2.1% 2.0% 6.3%

benzo[a]pyrene 1.2% 0.3% 18.3% 8.3% 2.7% 2.2% 5.1% 20.3% 4.4% 2.7% 2.7%

perylene 2.3% 1.2% 3.7% 1.9% 4.8% 22.5% 5.0% 2.1% 2.4%

indeno[1,2,3-cd]pyrene 4.4% 1.7% 16.2% 4.1% 3.5% 1.3% 10.4% 17.7% 5.2% 2.4% 3.3%

dibenz[a,h]anthracene 2.9% 3.7% 22.0% 10.7% 14.2% 28.1% 3.9% 2.2% 8.0%

benzo[ghi]perylene 1.4% 0.9% 16.7% 6.5% 3.5% 2.3% 11.2% 13.4% 5.0% 3.0% 1.3%
54

Table 30 (cont). Marine Sediment XIVI (QA07SED14): RSDs for three replicates - Water, TOC. and PAHs

Lab 7 Lab 8 Lab 9 Lab 10 Lab 11 Lab 12

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

Water 0.0% 0.0% 0.0% 2.8% 0.7% 2.4% 1.1%

TOC 4.8% 0.5%

PAH ANALYSES Lab 7 Lab 8 Lab 9 Lab 10 Lab 11 Lab 12

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

naphthalene 26.1% 2.3% 6.5% 19.7% 0.9% 69.1% 21.4% 1.1% 6.8% 20.0%

2-methylnaphthalene 25.3% 2.5% 7.1% 21.5% 5.0% 61.6% 17.7% 14.0% 15.2% 27.9%

1-methylnaphthalene 25.2% 2.3% 7.5% 19.4% 4.5% 24.7% 6.3% 13.2% 12.1% 35.1%

biphenyl 26.1% 0.6% 1.9% 16.0% 5.7% 12.2%

2,6-dimethylnaphthalene 24.8% 2.0% 3.9% 3.6% 13.2%

acenaphthylene 22.1% 2.9% 12.9% 21.8% 7.2% 69.1% 22.2% 17.3% 15.8% 14.6%

acenaphthene 23.0% 3.0% 10.0% 14.2% 4.7% 62.8% 9.2% 19.6% 6.8% 31.4%

1,6,7-trimethylnaphthalene 10.6%

fluorene 35.4% 1.5% 9.4% 21.0% 3.5% 81.3% 18.0% 6.2% 13.5% 14.5%

phenanthrene 8.9% 2.6% 5.8% 15.3% 12.5% 69.6% 7.4% 5.8% 1.4% 14.1%

anthracene 30.4% 8.5% 9.5% 21.7% 16.2% 69.9% 11.9% 13.2% 5.8% 15.3%

1-methylphenanthrene 22.3% 3.8% 8.9% 18.7% 0.6%

fluoranthene 9.6% 2.2% 10.2% 19.2% 9.0% 68.2% 12.2% 9.1% 7.0% 9.8%

pyrene 8.8% 2.4% 4.8% 7.4% 14.7% 69.9% 5.5% 24.9% 6.0% 13.3%

benz[a]anthracene 8.8% 2.1% 10.6% 14.1% 9.4% 66.1% 18.0% 5.8% 6.3% 15.7%

chrysene 9.7% 1.7% 6.7% 13.7% 9.6% 73.5% 4.5% 8.6% 7.9% 10.3%

triphenylene

benzo[b ]fluoranthene 7.7% 2.3% 16.5% 19.8% 9.8% 67.6% 34.6% 23.7% 10.7% 12.2%

benzo[j ]fluoranthene

benzo[k ]fluoranthene 10.4% 1.7% 15.2% 18.9% 84.3% 58.4% 22.4% 10.8% 15.4%

benzo[e]pyrene 9.1% 2.3% 13.6% 7.8% 12.0%

benzo[a]pyrene 7.9% 2.1% 25.9% 15.6% 11.8% 73.1% 10.0% 7.5% 6.9% 14.1%

perylene 8.7% 2.0% 8.0% 7.4% 11.4%

indeno[1,2,3-cd]pyrene 8.0% 2.4% 13.3% 17.0% 14.6% 68.5% 28.7% 13.9% 3.8% 15.8%

dibenz[a,h]anthracene 25.1% 2.0% 5.3% 16.1% 8.5% 96.3% 100.5% 38.6% 6.4% 13.4%

benzo[ghi]perylene 9.3% 3.3% 14.8% 14.8% 15.5% 74.0% 31.2% 15.0% 3.8% 14.0%
55

Table 30 (cont). Marine Sediment XIVI (QA07SED14): RSDs for three replicates - Water, TOC. and PAHs

Lab 13 Lab 14-1 Lab 14-2 Lab 15

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd

Water 1.2% 10.1% 10.1% 3.5%

TOC 0.4%

PAH ANALYSES Lab 13 Lab 14-1 Lab 14-2 Lab 15

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd

naphthalene 7.2% 14.1% 25.6% 4.5% 8.0%

2-methylnaphthalene 4.6% 15.2% 18.2% 5.5% 11.0%

1-methylnaphthalene 7.2% 12.2% 5.7%

biphenyl 7.1% 13.8% 12.6%

2,6-dimethylnaphthalene 18.5% 32.9% 7.6% 5.3%

acenaphthylene 15.5% 10.5% 10.6% 8.4%

acenaphthene 3.4% 6.8% 8.1%

1,6,7-trimethylnaphthalene 2.0% 10.5% 7.8% 7.8%

fluorene 1.6% 5.6% 9.3% 2.6%

phenanthrene 4.3% 4.4% 29.4% 2.4% 2.3%

anthracene 7.0% 5.4% 30.5% 3.5% 11.4%

1-methylphenanthrene 3.5% 1.5% 14.8% 15.6% 9.8%

fluoranthene 2.4% 2.8% 30.5% 4.4% 3.3%

pyrene 1.8% 3.6% 29.3% 6.3% 9.5%

benz[a]anthracene 4.1% 3.4% 24.5% 3.0% 12.4%

chrysene 4.8% 11.7% 30.6% 5.2% 2.9%

triphenylene

benzo[b ]fluoranthene 3.2% 7.4% 24.7% 6.5% 23.0%

benzo[j]fluoranthene 9.8% 6.0%

benzo[k ]fluoranthene 38.4% 6.6% 8.2%

benzo[e]pyrene 1.0% 7.4% 29.4% 10.8% 9.2%

benzo[a]pyrene 1.4% 7.4% 30.4% 3.4% 15.0%

perylene 4.5% 12.9% 25.3% 2.5% 9.0%

indeno[1,2,3-cd]pyrene 2.3% 9.2% 27.8% 4.6% 15.5%

dibenz[a,h]anthracene 4.6% 6.6% 18.7% 3.7% 15.3%

benzo[ghi]perylene 4.8% 10.5% 24.1% 7.9% 12.0%
56

Table 31. Marine Sediment XIVI (QA07SED14): RSDs for three replicates - Pesticides

Lab 1a Lab 2 Lab 3 Lab 4 Lab 5 Lab 6

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

alpha-HCH (a-BHC) 2.2%

hexachlorobenzene 2.5% 2.9% 1.3% 4.0% 6.0% 20.8% 6.7% 12.3% 2.1%

gamma-HCH (g-BHC,lindane) 4.6% 6.0% 12.9%

beta-HCH (b-BHC) 4.1%

heptachlor 35.5%

aldrin 7.9%

heptachlor epoxide 4.1%

oxychlordane

gamma-chlordane 3.8% 6.3% 14.5% 24.7% 0.9%

2,4'-DDE 7.4% 3.2% 1.5% 2.8% 21.8% 6.2% 6.8%

endosulfan I

cis-chlordane (alpha-chlordane) 3.2% 2.8% 20.5% 41.1% 12.4% 30.4% 3.2% 3.3% 1.3%

trans-nonachlor 3.3% 6.7% 11.8% 23.8% 3.0% 0.0% 2.9%

dieldrin 1.4% 2.1% 9.0%

4,4'-DDE 3.7% 1.3% 10.8% 43.1% 1.4% 3.6% 8.7% 23.7% 6.1% 1.5% 4.5%

2,4'-DDD 1.8% 4.7% 12.6% 27.1% 5.6%

endrin

endosulfan II

4,4'-DDD 2.1% 2.7% 12.1% 8.7% 10.5% 25.7% 4.1% 0.1% 4.0%

2,4'-DDT 7.2% 2.1% 6.2%

cis-nonachlor 1.0% 1.0% 10.7% 23.9% 4.3%

4,4'-DDT 1.1% 4.3% 12.5% 6.0% 11.1% 25.8% 3.3% 1.0% 6.3%

mirex 2.8% 4.1% 5.4%

endosulfan sulfate

chlorpyrifos
57

Table 31 (cont). Marine Sediment XIVI (QA07SED14): RSDs for three replicates - Pesticides

Lab 7 Lab 8 Lab 9 Lab 10 Lab 11 Lab 12

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

alpha-HCH (a-BHC) 4.0% 40.3% 15.1% 13.4%

hexachlorobenzene 8.4% 8.8% 4.7% 13.8% 68.6% 22.9% 5.2% 4.9%

gamma-HCH (g-BHC,lindane) 7.3% 22.6% 15.3% 79.2% 101.9% 19.2% 14.9%

beta-HCH (b-BHC) 11.7% 41.1% 4.4% 5.2%

heptachlor 23.6% 145.1% 64.8% 4.9%

aldrin 31.0% 10.1% 24.3% 37.8%

heptachlor epoxide 43.9% 19.8% 29.1% 119.3% 3.6% 1.9%

oxychlordane 6.5% 18.5%

gamma-chlordane 20.0% 5.3% 3.8% 20.9% 41.8% 26.5% 2.1% 4.9% 41.1%

2,4'-DDE 12.4% 11.9% 30.7% 6.3% 3.3% 6.6% 4.1%

endosulfan I

cis-chlordane (alpha-chlordane) 34.4% 3.1% 5.1% 1.4% 52.2% 16.7% 7.7% 7.9%

trans-nonachlor 17.8% 15.2% 2.0% 3.4% 3.8% 4.0%

dieldrin 9.2% 7.2% 6.6% 5.4% 15.1% 10.2% 8.2%

4,4'-DDE 6.7% 3.3% 19.6% 7.3% 5.6% 44.2% 1.8% 5.8% 1.9% 16.8%

2,4'-DDD 12.7% 2.7% 15.2% 16.9% 10.4% 8.8% 6.2% 10.2%

endrin 14.5% 8.5% 90.8% 30.6% 43.9%

endosulfan II 5.7% 42.2% 7.5%

4,4'-DDD 18.6% 2.0% 10.9% 6.8% 8.4% 52.9% 32.6% 25.7% 5.3% 8.8%

2,4'-DDT 9.6% 33.0% 9.0% 35.8% 23.2% 18.1%

cis-nonachlor 6.1% 12.2% 7.8% 4.6%

4,4'-DDT 12.5% 1.5% 18.2% 13.9% 17.7% 48.3% 8.3% 9.4% 75.1% 4.0%

mirex 2.1% 14.2% 14.6% 12.8%

endosulfan sulfate 12.2% 49.6%

chlorpyrifos
58

Table 31 (cont). Marine Sediment XIVI (QA07SED14): RSDs for three replicates - Pesticides

Lab 13 Lab 14-1 Lab 14-2 Lab 15

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd

alpha-HCH (a-BHC)

hexachlorobenzene 12.0% 3.6% 3.8%

gamma-HCH (g-BHC,lindane) 1.6%

beta-HCH (b-BHC) 3.4%

heptachlor 5.1%

aldrin

heptachlor epoxide 6.7% 5.5%

oxychlordane 6.2%

gamma-chlordane 5.3%

2,4'-DDE 18.2% 40.5% 3.7%

endosulfan I 8.7%

cis-chlordane (alpha-chlordane) 2.1% 4.2% 4.4%

trans-nonachlor 0.8% 1.6% 4.9%

dieldrin 5.7% 2.4% 3.5%

4,4'-DDE 5.4% 6.5% 3.9%

2,4'-DDD 7.0% 6.9% 2.5%

endrin 3.9%

endosulfan II 3.8% 8.8% 7.0%

4,4'-DDD 7.9% 4.0% 1.5%

2,4'-DDT 26.9% 4.5%

cis-nonachlor 6.5%

4,4'-DDT 17.2% 2.2% 2.7%

mirex 7.4% 7.8% 2.7%

endosulfan sulfate 24.3% 9.0%

chlorpyrifos 103.1% 19.4%
59

Table 32. Marine Sediment XIVI (QA07SED14): RSDs for three replicates - PCBs

Lab 1a Lab 2 Lab 3 Lab 4 Lab 5 Lab 6

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

PCB 8 3.2% 2.3% 16.5% 7.7% 6.1% 8.9% 2.8%

PCB 18 2.8% 2.6% 1.8% 3.7% 2.9% 4.2% 6.3% 8.4% 1.2%

PCB 28 3.0% 1.0% 1.5% 3.3% 5.7% 6.3% 4.5% 6.6% 8.1%

PCB 31 7.0% 0.4% 3.0% 2.6% 2.5%

PCB 44 5.0% 1.1% 1.3% 3.7% 2.0% 5.9% 5.8% 4.2% 8.8%

PCB 49 1.7% 1.3% 1.3% 4.0% 8.2%

PCB 52 6.5% 1.3% 1.2% 3.8% 6.8% 8.2% 4.5% 5.7% 8.4%

PCB 66 4.7% 2.4% 16.7% 9.2% 4.4% 6.9% 5.5% 4.1% 1.5%

PCB 95 4.9% 0.9% 2.0% 4.1% 12.1%

PCB 99 4.0% 1.2% 2.2% 3.4% 3.4%

PCB 101 6.1% 1.3% 1.3% 3.7% 3.8% 6.6% 4.3% 4.2% 9.0%

PCB 105 3.9% 4.5% 2.7% 1.7% 2.6% 8.4% 3.3% 4.1% 3.8%

PCB 118 4.9% 0.8% 1.0% 3.0% 4.8% 8.6% 3.7% 3.9% 4.1%

PCB 128 2.2% 1.4% 1.8% 4.4% 11.5% 8.5% 6.5% 9.0% 7.9%

PCB 138 3.7% 0.9% 1.4% 3.6% 0.6% 8.2% 4.3% 5.2% 11.2%

PCB 149 2.6% 0.8% 1.4% 3.5% 4.1%

PCB 153 4.7% 0.5% 1.9% 6.8% 6.3% 6.2% 10.1%

PCB 156 1.8% 2.4% 2.0% 5.3% 3.8%

PCB 170 3.4% 1.9% 5.7% 4.3% 1.3% 6.3% 3.7% 5.9% 9.5%

PCB 180 4.5% 2.1% 1.3% 2.8% 0.9% 7.9% 8.0% 7.3% 5.7%

PCB 187 4.1% 3.9% 1.9% 2.4% 6.8% 8.4% 5.9% 7.1% 6.3%

PCB 194 2.8% 4.3% 0.5% 5.0% 3.6%

PCB 195 6.1% 5.1% 4.1% 7.2% 4.2% 11.4% 13.2% 8.0% 5.1%

PCB 206 0.9% 1.6% 3.0% 8.7% 7.2% 12.0% 6.6% 5.7% 0.8%

PCB 209 3.3% 2.2% 2.4% 5.4% 16.3% 12.3% 9.4% 12.5% 3.9%
60

Table 32 (cont). Marine Sediment XIVI (QA07SED14): RSDs for three replicates - PCBs

Lab 7 Lab 8 Lab 9 Lab 10 Lab 11 Lab 12

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

PCB 8 2.7% 1.7% 26.2% 12.2% 12.4% 3.8% 4.2%

PCB 18 7.5% 4.5% 11.9% 16.8% 6.0% 8.9% 3.6%

PCB 28 10.8% 3.6% 7.3% 3.7% 6.3% 7.1% 2.6%

PCB 31 11.7% 8.5% 10.3% 19.5% 5.0%

PCB 44 10.5% 1.9% 3.3% 8.5% 1.1% 5.1% 8.7%

PCB 49 5.8% 4.6% 1.1% 4.4% 8.9%

PCB 52 10.5% 1.1% 5.8% 4.4% 1.0% 7.4% 8.5%

PCB 66 9.7% 1.5% 5.8% 3.3% 4.9% 6.9% 4.3%

PCB 95 7.5% 6.4% 2.2% 5.8% 3.0%

PCB 99 7.3% 5.4% 6.8% 3.4% 4.7%

PCB 101 11.9% 2.5% 5.0% 1.8% 2.3% 14.3% 4.2%

PCB 105 12.3% 8.6% 3.4% 12.9% 1.9% 2.1% 3.5%

PCB 118 5.2% 1.8% 7.2% 2.8% 4.6% 2.6% 0.9%

PCB 128 15.2% 9.0% 1.3% 6.0% 1.0% 10.9% 2.9%

PCB 138 5.7% 2.7% 18.9% 0.8% 3.1% 7.1% 9.5%

PCB 149 5.1% 6.0% 4.7% 6.7% 8.9%

PCB 153 8.4% 0.3% 5.9% 4.9% 8.6% 8.5% 9.8%

PCB 156 35.6% 13.1% 2.6% 7.5% 1.9%

PCB 170 16.4% 3.4% 0.4% 5.6% 8.5% 12.3% 5.1%

PCB 180 17.2% 8.0% 5.0% 6.0% 8.5% 11.0% 4.2%

PCB 187 8.2% 8.5% 5.0% 2.7% 8.5% 11.0% 5.9%

PCB 194 5.7% 21.2% 9.5% 17.5% 3.9%

PCB 195 4.2% 27.6% 7.3% 13.7% 20.0% 1.1%

PCB 206 14.1% 8.1% 4.6% 11.0% 7.4%

PCB 209 21.7% 1.3% 12.3% 5.3% 2.7%
61

Table 32 (cont). Marine Sediment XIVI (QA07SED14): RSDs for three replicates - PCBs

Lab 13 Lab 14-1 Lab 14-2 Lab 15

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd

PCB 8 8.4% 7.5%

PCB 18 29.3% 15.5% 9.4% 5.2%

PCB 28 22.4% 6.0% 9.8% 6.2%

PCB 31 25.5% 2.0% 8.6% 7.3%

PCB 44 19.7% 2.7% 6.4% 5.2%

PCB 49 6.2% 6.1%

PCB 52 5.8% 2.9% 6.2% 6.0%

PCB 66 6.4% 3.3% 6.3% 8.0%

PCB 95 4.0% 7.0% 8.1%

PCB 99 1.5% 3.9% 8.1% 6.0%

PCB 101 3.7% 3.7% 8.8% 9.4%

PCB 105 3.0% 6.0% 9.7% 7.6%

PCB 118 1.4% 4.0% 10.0% 7.1%

PCB 128 11.1% 2.0% 10.3% 4.5%

PCB 138 0.4% 5.3% 9.7% 6.8%

PCB 149 1.1% 3.9% 8.7% 6.5%

PCB 153 5.7% 5.1% 8.9% 8.3%

PCB 156 8.1% 9.5% 6.6%

PCB 170 3.2% 11.1% 2.2% 8.9%

PCB 180 2.9% 12.4% 4.7% 6.1%

PCB 187 4.4% 15.7% 6.5% 3.4%

PCB 194 6.2% 20.4% 1.9% 5.0%

PCB 195 28.4% 35.7% 14.2%

PCB 206 4.3% 15.8% 4.3%

PCB 209 3.3% 4.4% 7.0% 3.2%
62

Table 33. Marine Sediment XIVI (QA07SED14): RSDs for three replicates - PBDEs

Lab 1a Lab 2 Lab 3 Lab 4 Lab 5 Lab 6

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

BDE 15 8.6% 3.3%

BDE 17 5.8% 7.4%

BDE 25

BDE 28 4.8%

BDE 30

BDE 33

BDE 47 2.7% 6.3% 2.2% 11.2%

BDE 49 4.1% 2.5% 6.2%

BDE 66 13.0%

BDE 71 14.2%

BDE 75 12.7%

BDE 85 4.9%

BDE 99 2.3% 3.2% 0.8% 2.9%

BDE 100 4.8%

BDE 116

BDE 118

BDE 119

BDE 138 7.2%

BDE 153 4.4% 3.5% 10.6% 5.9% 3.3%

BDE 154 5.3%

BDE 155 7.4%

BDE 156

BDE 181 11.6%

BDE 183 2.7% 7.1% 20.7% 16.5% 10.4%

BDE 190 10.7%

BDE 191

BDE 196

BDE 197

BDE 203

BDE 205

BDE 206

BDE 207

BDE 208

BDE 209 6.3% 5.7% 3.0%
63

Table 33 (cont). Marine Sediment XIVI (QA07SED14): RSDs for three replicates - PBDEs

Lab 7 Lab 8 Lab 9 Lab 10 Lab 11 Lab 12

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd rsd

BDE 15 4.2% 6.0%

BDE 17 7.4% 15.0%

BDE 25 7.4% 15.0%

BDE 28 8.3% 13.7% 68.5%

BDE 30

BDE 33 8.3% 13.7%

BDE 47 4.9% 13.1% 5.9%

BDE 49 8.5% 23.3%

BDE 66 6.1% 28.2% 11.5%

BDE 71

BDE 75 28.0% 45.4%

BDE 85 17.6%

BDE 99 4.3% 6.6% 7.1%

BDE 100 11.6% 11.7% 8.0%

BDE 116

BDE 118

BDE 119

BDE 138 8.8%

BDE 153 8.8% 4.9% 6.0%

BDE 154 3.8% 25.2% 5.7%

BDE 155 109.4% 67.5%

BDE 156

BDE 181

BDE 183 6.7% 5.8% 9.6%

BDE 190 7.2% 3.5%

BDE 191

BDE 196 9.8% 5.0%

BDE 197 4.5% 1.8%

BDE 203 11.2% 8.8%

BDE 205

BDE 206 7.4% 18.5%

BDE 207 12.4% 14.2%

BDE 208 10.8% 8.4%

BDE 209 2.7% 53.3%
64

Table 33 (cont). Marine Sediment XIVI (QA07SED14): RSDs for three replicates - PBDEs

Lab 13 Lab 14-1 Lab 14-2 Lab 15

Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944 Sed XIV SRM 1944

rsd rsd rsd rsd rsd rsd rsd rsd

BDE 15

BDE 17

BDE 25

BDE 28

BDE 30

BDE 33

BDE 47 2.0% 6.4%

BDE 49

BDE 66

BDE 71

BDE 75

BDE 85

BDE 99 70.2%

BDE 100 12.0%

BDE 116

BDE 118

BDE 119

BDE 138 14.9%

BDE 153 14.6% 12.1%

BDE 154 17.4% 12.2%

BDE 155

BDE 156

BDE 181

BDE 183 3.2% 17.8%

BDE 190 20.2%

BDE 191

BDE 196

BDE 197

BDE 203

BDE 205

BDE 206

BDE 207

BDE 208

BDE 209 15.0% 72.1%
65

Appendix A” Description, Storage, Use, and Reporting Instructions for Mussel Tissue XIII (QA07TIS 

13)
66

NIST Intercomparison Exercise Program for 

Organic Contaminants in the Marine Environment

NIST QA Program

Intercomparison Exercise: Mussel Tissue XIII

Description of Materials and Instructions

Intercomparison Exercise Materials:

QA07TIS13 (Mussel Tissue XIII)

The one jar contains approximately 6.5 g (dry-mass basis) of Mussel Tissue XIII. This freeze-dried 

material was prepared from mussels collected from two urban areas. This material has not been 

enriched or spiked. Each 30-mL amber jar has a Teflon-lined screw cap and is labeled with an 

individual jar number as well as the above name.

In addition, three concurrent analyses of SRM 2977 Mussel Tissue (Organic Contaminants and Trace 

Elements) are recommended. This material can be obtained from the NIST Standard Reference 

Materials Program ($506/10 g (dry-mass basis) (phone: 301/975-6776; fax: 301/948-3730). See the 

following link for information on ordering on-line: https://srmors.nist.gov/view_detail.cfm?srm=2977.

Storage of Materials:

Mussel Tissue Material. The tissue material should be stored in the dark at room temperature. If only a 

portion of the contents of a jar is used, the jar should be tightly closed immediately after removal of a 

subsample to preserve the integrity of the remaining material for later analysis. 

Instructions for Use:

You are to analyze Mussel Tissue XIII and SRM 2977, using your laboratory's and/or program's 

analytical protocols, for the concentrations (mass/mass [dry-mass basis]) of the 26 polycyclic aromatic 

hydrocarbon (PAH) compounds, 25 chlorinated pesticides, 25 polychlorinated biphenyl (PCB) 

congeners, and 34 polybrominated diphenyl ether (PBDE) congeners1 of interest in the current NIST 

Intercomparison Exercise Program for Organic Contaminants in the Marine Environment. These 

compounds are listed in Table 1. 

 

1

If your laboratory is not analyzing samples for all three chemical classes, you are expected to submit results 

only for those compounds currently being determined in your laboratory.
67

The percentage of total extractable organics (or lipid) in Mussel Tissue XIII and SRM 2977 should also 

be determined. You should have received sufficient material for this purpose. The amount of material 

used for each analysis should correspond to the amount (dry-mass basis) of marine tissue that you 

would typically analyze as prescribed in your protocols. 

You should analyze three samples of Mussel Tissue XIII and at least one or more samples of SRM 

2977 in three different batches using your protocol for tissue samples. Specifically, we are asking that 

you analyze one sample of Mussel Tissue XIII and one sample of SRM 2977 with one batch of 

laboratory samples; analyze a second sample of each material with another batch; and the third sample 

with yet another batch. This will allow a more realistic assessment of laboratory precision over a 

longer term than the assessment obtained when a laboratory places all three samples in the same 

extraction and cleanup batch and the resulting extracts are analyzed using the same calibration curve, 

etc. 

Reporting of Results:

Please report one result, as if three figures were significant, for each of the requested analytes in each of 

the three replicates of the Mussel Tissue XIII and of SRM 2977. Report results in units of ng/g drymass basis. Report the date of measurement of each sample in the requested m/d/y format. 

We recognize that the reported concentrations for some of the requested determinands will probably 

include concentrations of compounds reported to coelute with the determinand of interest with methods 

commonly in use in environmental laboratories. Please note at the bottom of your table of reported 

results if any coelution qualifiers are applicable to your data. Please note that any changes you make to 

the column or row headings within the tables will not be seen by the coordinators because only the 

table entries and comments at the bottom of the tables are automatically transferred to the exercise

database.

We prefer that concentration values be reported for each analyte determined. If the measured 

concentration is below your typical reporting concentration for an analyte in a particular matrix, you 

can report the number and list the appropriate detection limit, quantification limit, etc. at the bottom of 

the data table. However, if you need to report non-numerical data please use the following 

conventions:

NA "Not analyzed", "not determined"

<"value" "Less than specified concentration", e.g., <8 ng/g

Other "Other"; add note of explanation at end of data table, e.g., interference

DL "Below detection limit" may be used, however, <"value" is preferable

Do not use negative numbers or parentheses to indicate "less than detection limits". 

The attached file is an EXCEL file, TIS13.xls. If you have any software/hardware conversion problems, 

please contact Michele Schantz. The data file templates also include places for you to list the 

surrogate/internal standards and type of calibration curve used, and to provide a brief description of the 

analyses. Please do not add spaces before entering numbers in the table cells and enter them as 

"numbers" not as "labels". Please do not insert any columns or rows within the table in the data file. If 
68

you wish to include additional data and/or other information or comments, you may add it to the bottom 

of the data table in the diskette file or send it in hard copy. 

Submit your results by January 31, 2008 as an attached file via e-mail to: 

E-mail: michele.schantz@nist.gov

Further Information:

If you need further information, please contact Michele at the following address or phone numbers:

Michele M. Schantz

NIST

100 Bureau Drive Stop 8392

 Gaithersburg, MD 20899-8392 

Phone: (301)975-3106

FAX: (301)977-0685
69

Table 1: Analytes of Interest in NIST Intercomparison Exercise Program for Organic 

Contaminants in the Marine Environment

Chlorinated Pesticides

hexachlorobenzene 2,4'-DDE 

alpha-HCH (alpha-BHC) 4,4'-DDE

beta-HCH (beta-BHC) 2,4'-DDD

gamma-HCH (gamma-BHC, Lindane) 4,4'-DDD

heptachlor 2,4'-DDT

heptachlor epoxide 4,4'-DDT

cis-chlordane (alpha-chlordane) chlorpyrifos

trans-chlordane (gamma-chlordane) aldrin

oxychlordane dieldrin 

cis-nonachlor endrin 

trans-nonachlor endosulfan I

mirex endosulfan II

endosulfan sulfate

Polychlorinated Biphenyl Congeners

PCB No. Compound Name

8 2,4'-dichlorobiphenyl

18 2,2',5-trichlorobiphenyl

28 2,4,4'-trichlorobiphenyl

31 2,4',5-trichlorobiphenyl

44 2,2',3,5'-tetrachlorobiphenyl

49 2,2',4,5'-tetrachlorobiphenyl

52 2,2',5,5'-tetrachlorobiphenyl

66 2,3',4,4'-tetrachlorobiphenyl

95 2,2',3,5',6-pentachlorobiphenyl

99 2,2',4,4',5-pentachlorobiphenyl

101 2,2',4,5,5'-pentachlorobiphenyl

105 2,3,3',4,4'-pentachlorobiphenyl

118 2,3',4,4',5-pentachlorobiphenyl

128 2,2',3,3',4,4'-hexachlorobiphenyl

138 2,2',3,4,4',5'-hexachlorobiphenyl

149 2,2',3,4',5',6-hexachlorobiphenyl

153 2,2',4,4',5,5'-hexachlorobiphenyl

156 2,3,3',4,4',5-hexachlorobiphenyl

170 2,2',3,3',4,4',5-heptachlorobiphenyl

180 2,2',3,4,4',5,5'-heptachlorobiphenyl

187 2,2',3,4',5,5',6-heptachlorobiphenyl

194 2,2',3,3',4,4',5,5'-octachlorobiphenyl

195 2,2',3,3',4,4',5,6-octachlorobiphenyl

206 2,2',3,3',4,4',5,5',6-nonachlorobiphenyl

209 decachlorobiphenyl
70

Table 1. (continued)

Polycyclic aromatic hydrocarbons (PAH)

naphthalene benz[a]anthracene

2-methylnaphthalene chrysene

1-methylnaphthalene triphenylene

biphenyl benzo[b]fluoranthene

2,6-dimethylnaphthalene benzo[j]fluoranthene

acenaphthylene benzo[k]fluoranthene

acenaphthene benzo[e]pyrene

1,6,7-trimethylnaphthalene benzo[a]pyrene

fluorene perylene

phenanthrene indeno[1,2,3-cd]pyrene

anthracene dibenz[a,h]anthracene

1-methylphenanthrene benzo[ghi]perylene 

fluoranthene 

pyrene

Polybrominated diphenyl ethers (PBDEs)

BDE 15 BDE 138

BDE 17 BDE 153

BDE 25 BDE 154

BDE 28 BDE 155

BDE 30 BDE 156

BDE 33 BDE 181

BDE 47 BDE 183

BDE 49 BDE 190

BDE 66 BDE 191

BDE 71 BDE 196

BDE 75 BDE 197

BDE 85 BDE 203

BDE 99 BDE 205

BDE 100 BDE 206

BDE 116 BDE 207

BDE 118 BDE 208

BDE 119 BDE 209
71

Appendix B: Description, Storage, Use, and Reproting Insturctions for Marine Sediment XIV 

(QA07SED14)
72

NIST Intercomparison Exercise Program for 

Organic Contaminants in the Marine Environment

NIST QA Program

Intercomparison Exercise: Marine Sediment XIV

Description of Materials and Instructions

Intercomparison Exercise Materials:

QA07SED14 (Marine Sediment XIV)

Each of the three jars contains approximately 19 g (wet basis) of Marine Sediment XIV. This wetted 

sediment was prepared from material that was collected from a harbor area in the northeasetern section 

of the US coast and then freeze-dried, ground sieved, and radiation-sterilized. This material has not 

been enriched or spiked. Each 2-oz clear glass jar has a Teflon-lined screw cap and is labeled with an 

individual jar number as well as the above name.

In addition, three concurrent analyses of SRM 1944 New York/New Jersey Waterway Sediment are 

recommended. This material can be obtained from the NIST Standard Reference Materials Program 

($544/50 g (dry-mass basis) (phone: 301/975-6776; fax: 301/948-3730). See the following link for 

information on ordering on-line: https://srmors.nist.gov/view_detail.cfm?srm=1944.

Storage of Materials:

Marine Sediment Material. This Marine Sediment XIV material should be stored in the dark at 

temperatures of -15  ̊C or lower. If only a portion of the contents of a jar is used, that jar should be 

tightly closed immediately after removal of a subsample to preserve the integrity of the remaining 

material for later analysis. 

Instructions for Use:

You are to analyze Marine Sediment XIV and SRM 1944 using your laboratory's and/or program's 

analytical protocols, for the concentrations (mass/mass [dry-mass basis]) of the 26 polycyclic aromatic 

hydrocarbon (PAH) compounds, 25 chlorinated pesticides, 25 polychlorinated biphenyl (PCB) 

congeners, and 34 polybrominated diphenyl ether (PBDE) congeners2 of interest in the current NIST 

Intercomparison Exercise Program for Organic Contaminants in the Marine Environment. These 

compounds are listed in Table 1. 

 

2

If your laboratory is not analyzing samples for all chemical classes, you are expected to submit results only for 

those compounds currently being determined in your laboratory.
73

The percentage of water in Sediment XIV should be determined so that the results can be reported on a 

dry basis. You should have received sufficient material so that you can perform separate 

determinations for the water content if you do not dry your sediment samples prior to analysis. In 

addition, the percentage of total organic carbon should be determined in Sediment XIV and SRM 1944.

The amount of material used for each analysis should correspond to the amount (wet basis) of marine 

sediment that you would typically analyze as prescribed in your protocols. Prior to removing an aliquot 

of Sediment XIV, you should thaw the sample in the jar and then stir or otherwise mix it thoroughly. 

You should analyze three samples of Marine Sediment XIV and at least one or more samples of SRM 

1944 in three different batches using your protocol for marine sediment samples. Specifically, we are 

asking that you analyze one sample of Sediment XIV and one sample of SRM 1944 with one batch of 

laboratory samples; analyze a second sample of each material with another batch; and the third sample 

with yet another batch. This will allow a more realistic assessment of laboratory precision over a 

longer term than the assessment obtained when a laboratory places all three samples in the same 

extraction and cleanup batch and the resulting extracts are analyzed using the same calibration curve, 

etc. 

Reporting of Results:

Please report one result, as if three figures were significant, for each of the requested analytes in each of 

the three replicates of the Marine Sediment XIV and of SRM 1944. Report results in units of ng/g drymass basis. Report the date of measurement of each sample in the requested m/d/y format. Also, 

report the results of your percentage water determinations of Marine Sediment XIV.

We recognize that the reported concentrations for some of the requested determinands will probably 

include concentrations of compounds reported to coelute with the determinand of interest with methods 

commonly in use in environmental laboratories. Please note at the bottom of your table of reported 

results if any coelution qualifiers are applicable to your data. Please note that any changes you make to 

the column or row headings within the tables will not be seen by the coordinators because only the 

table entries and comments at the bottom of the tables are automatically transferred to the exercise 

database.

We prefer that concentration values be reported for each analyte determined. If the measured 

concentration is below your typical reporting concentration for an analyte in a particular matrix, you 

can report the number and list the appropriate detection limit, quantification limit, etc. at the bottom of 

the data table. However, if you need to report non-numerical data please use the following 

conventions:

NA "Not analyzed", "not determined"

<"value" "Less than specified concentration", e.g., <8 ng/g

Other "Other"; add note of explanation at end of data table, e.g., interference

DL "Below detection limit" may be used, however, <"value" is preferable
74

Do not use negative numbers or parentheses to indicate "less than detection limits". 

The attached file is an EXCEL file, SED14.xls. If you have any software/hardware conversion 

problems, please contact Michele Schantz. The data file templates also include places for you to list the 

surrogate/internal standards and type of calibration curve used, and to provide a brief description of the 

analyses. Please do not add spaces before entering numbers in the table cells and enter them as 

"numbers" not as "labels". Please do not insert any columns or rows within the table in the data file. If 

you wish to include additional data and/or other information or comments, you may add it to the bottom 

of the data table in the diskette file or send it in hard copy. 

Submit your results by January 31, 2008 as an attached file via e-mail to: 

E-mail: 

michele.schantz@nist.gov 

Further Information:

If you need further information, please contact Michele at the following address or phone numbers:

Michele M. Schantz

NIST

100 Bureau Drive Stop 8392

Gaithersburg, MD 20899-8392 

Phone: (301)975-3106

FAX: (301)977-0685
75

Table 1: Analytes of Interest in NIST Intercomparison Exercise Program for Organic 

Contaminants in the Marine Environment

Chlorinated Pesticides

hexachlorobenzene 2,4'-DDE 

alpha-HCH (alpha-BHC) 4,4'-DDE

beta-HCH (beta-BHC) 2,4'-DDD

gamma-HCH (gamma-BHC, Lindane) 4,4'-DDD

heptachlor 2,4'-DDT

heptachlor epoxide 4,4'-DDT

cis-chlordane (alpha-chlordane) chlorpyrifos

trans-chlordane (gamma-chlordane) aldrin

oxychlordane dieldrin 

cis-nonachlor endrin 

trans-nonachlor endosulfan I

mirex endosulfan II

endosulfan sulfate

Polychlorinated Biphenyl Congeners

PCB No. Compound Name

8 2,4'-dichlorobiphenyl

18 2,2',5-trichlorobiphenyl

28 2,4,4'-trichlorobiphenyl

31 2,4',5-trichlorobiphenyl

44 2,2',3,5'-tetrachlorobiphenyl

49 2,2',4,5'-tetrachlorobiphenyl

52 2,2',5,5'-tetrachlorobiphenyl

66 2,3',4,4'-tetrachlorobiphenyl

95 2,2',3,5',6-pentachlorobiphenyl

99 2,2',4,4',5-pentachlorobiphenyl

101 2,2',4,5,5'-pentachlorobiphenyl

105 2,3,3',4,4'-pentachlorobiphenyl

118 2,3',4,4',5-pentachlorobiphenyl

128 2,2',3,3',4,4'-hexachlorobiphenyl

138 2,2',3,4,4',5'-hexachlorobiphenyl

149 2,2',3,4',5',6-hexachlorobiphenyl

153 2,2',4,4',5,5'-hexachlorobiphenyl

156 2,3,3',4,4',5-hexachlorobiphenyl

170 2,2',3,3',4,4',5-heptachlorobiphenyl

180 2,2',3,4,4',5,5'-heptachlorobiphenyl

187 2,2',3,4',5,5',6-heptachlorobiphenyl

194 2,2',3,3',4,4',5,5'-octachlorobiphenyl

195 2,2',3,3',4,4',5,6-octachlorobiphenyl

206 2,2',3,3',4,4',5,5',6-nonachlorobiphenyl

209 decachlorobiphenyl
76

Table 1. (continued)

Polycyclic aromatic hydrocarbons (PAH)

naphthalene benz[a]anthracene

2-methylnaphthalene chrysene

1-methylnaphthalene triphenylene

biphenyl benzo[b]fluoranthene

2,6-dimethylnaphthalene benzo[j]fluoranthene

acenaphthylene benzo[k]fluoranthene

acenaphthene benzo[e]pyrene

1,6,7-trimethylnaphthalene benzo[a]pyrene

fluorene perylene

phenanthrene indeno[1,2,3-cd]pyrene

anthracene dibenz[a,h]anthracene

1-methylphenanthrene benzo[ghi]perylene 

fluoranthene 

pyrene

Polybrominated diphenyl ethers (PBDEs)

BDE 15 BDE 138

BDE 17 BDE 153

BDE 25 BDE 154

BDE 28 BDE 155

BDE 30 BDE 156

BDE 33 BDE 181

BDE 47 BDE 183

BDE 49 BDE 190

BDE 66 BDE 191

BDE 71 BDE 196

BDE 75 BDE 197

BDE 85 BDE 203

BDE 99 BDE 205

BDE 100 BDE 206

BDE 116 BDE 207

BDE 118 BDE 208

BDE 119 BDE 209
77

Appendix C: Laboratory Notes Accompanying Data, Mussel Tissue XIII
78

Lab Additional notes for Mussel Tissue XIII

1a Used a DB-17 column to separate the chrysene from triphenylene and the dibenz[a,h]anthracene from dibenz[a,c]anthracene

3 Tissue XIII Tissue XIII Tissue XIII SRM 2977 SRM 2977 SRM 2977

Sample 1 Sample 2 Sample 3 Sample 1 Sample 2 Sample 3

(ng/g dry mass) (ng/g dry mass)(ng/g dry mass) (ng/g dry mass) (ng/g dry mass) (ng/g dry mass)

chrysene + triphenylene 129 129 129 113 94.7 94.4

benzo[j]fluoranthene + benzo[k]fluoranthene 36.2 35.4 33.3 15 13 12.7

Dibenzithiophene 34.1 34 33.4 29.6 29.7 29.6

Retene 8.96 9.48 10.3 10.6 12.1 10.3

PCB 17 3.08 3.06 3.04 1.88 2.02 1.94

PCB 33 2.26 2.57 2.51 1.89 1.65 1.61

PCB 70 14 13.9 13.6 3.74 3.82 3.63

PCB 74 7.41 7.46 7.26 2.77 2.74 2.7

PCB 82 2.59 2.53 2.46 0.629 0.525 0.56

PCB 87 8.45 8.42 8.25 1.58 1.65 1.58

PCB 110 25.5 25.3 24.7 6.04 6.18 6.02

PCB 151 7.38 7.49 7.31 3.3 3.3 3.21

PCB 153 + PCB 132 48.4 48.8 47 17.6 17.8 17.2

PCB 158 2.01 2.01 1.97 0.369 0.346 0.34

PCB 171 1.12 1.1 1.1 0.295 <0.330 <0.322

PCB 177 5.1 4-Jan-00 5-Jan-00 2.21 2.2 2.12

PCB 183 3.24 3.2 3.24 0.645 0.632 0.61

PCB 191 <0.358 <0.384 <0.276 <0.262 <0.331 <0.323

PCB 199 0.36 0.32 0.33 0.68 0.55 0.61

PCB 205 <0.357 <0.382 <0.275 <0.281 <0.330 <0.322

PCB 208 <0.358 <0.384 <0.276 <0.282 <0.331 <0.323

Iatroscan total lipid (%) 5.80 6.00 5.70 7.00 6.300 8.100

Free fatty acids + triglycerides (% of total lipid) 37.3 35.7 37.6 46.10 43.70 40.90

cholesterol (% of total lipid) 0.5 0.4 0.5 0.00 0.00 0.00

phospholipid (% of total lipid) 54.30 56.20 55.00 42.00 46.60 48.30

wax esters (% of total lipid) 7.90 7.70 6.90 11.90 9.600 10.700

Other - Analytes coelute with others and are reported as sums in the additional data portion.

NA - not analyzed; the analyte is not included in our reported suite of compounds

I - the analyte concentration could not be reported; the analyte could not be quantitated due to the presence of interfering compounds

PCB 101 is assumed to coelute with PCB 90.

PCB 138 is assumed to coelute with PCBs 163 and 164.

PCB 187 is assumed to coelute with PCBs 159 and 182.

Iatroscan total lipid is determined from the sum of the masses of free fatty acids, triglycerides, cholesterol, phospholipid, and waxx esters.

4 Due to problems with laboratory TS results, all concentrations are reported on a wet-weight basis. Michele Schantz will convert 

results to dry-weight by using average correction factor from all data received (per email 1/17/08).

Due to problems with the lipids prodedure we are not reporting % lipids results.

Congener samples 2 and 3 were run in the same instrument batch but were prepped in 2 separate extraction batches.

6 "other" = congener co-elutes as follows:

PCB co-elutions: PCB 18/30, 20/28, 44/47/65, 95/100/93/102/98, 99/83, 101/90/113, 128/166, 138/163/129/160, 149/147, 153/168, 156/157, 180/193

PAH co-elutions: triphenylene/chrysene, benzo[j]fluoranthene/benzo[k]fluoranthene, 

1,2,6-trimethynaphthalene/1,2,7-trimethynaphthalene/1,6,7-trimethylnaphthalene/2,3,5-trimethynaphthalene,

 dibenz[a,h]anthracene/dibenz[a,c]anthracene

Pesticide SRM data are provided in separate file

7 red is below LOQ

8 pg

This is a qualifier that is used for GC. It means that the % difference between the results from both columns is >40%.

9 PCB 101 coelutes with PCB 90

PCB 153 coelutes with PCB 132 and 168

PCB 170 coelutes with PCB 190

PCB 8 coelutes with PCB 5

PCB 195 coelutes with PCB 208

<symbol refers to values less than our MDL

The reported value of chrysene is the sum of chrysene and triphenylene

The reported value of benzo(b)fluoranthene is the sum of benzo(b)fluoranthene, benzo(k)fluoranthene and benzo(j)fluoranthene

Insufficient sample to determine PBDE

10 Notes: for non-freeze-dried tissue, our normal sample weight is 10 g for each test, wet weight.

PAHs: The initial analyses for the first two batches had no target analytes detected, so the extracts were concentrated and reanalyzed
79

12 Aldrin is noted to have matrix interference causing a raised detection limit.

Typical PCB coelution on a DB-5 column - Method 1668 (209 congeners)

Di- Chlorinated PCB Coeulters

DiCB-4/10

DiCB-9/7

DiCB-8/5

DiCB-12/13

Tri- Chlorinated PCB Coeulters

TrCB-27/24

TrCB-32/16

TrCB-34/23 *

TrCB-21/20/33

Tetra- Chlorinated PCB Coeulters

TeCB-52/73

TeCB-43/49

TeCB-47/75/48

TeCB-59/42 *

TeCB-64/41/68

TeCB-74/61

TeCB-66/76/80

TeCB-56/60

Penta- Chlorinated PCB Coeulters

PeCB-98/102

PeCB-95/93

PeCB-121/88

PeCB-89/90/101

PeCB-83/108

Pe-97/86/125/111/117/87

PeCB-115/116

PeCB-85/120

PeCB-109/107

PeCB-118/106

PeCB-105/127

Hexa- Chlorinated PCB Coeulters

HxCB-135/144

HxCB-139/149

HxCB-131/142/165

HxCB-132/168

HxCB-164/163/138

HxCB-160/158

Hepta- Chlorinated PCB Coeulters

HpCB-187/182

HpCB-172/192

HpCB-170/190

Octa- Chlorinated PCB Coeulters

OcCB-196/203

*These coelutions can be resolved in some cases.

13 PCB 8 coelutes - PCB 5/8

PCB 101 coelute - PCB 89/90/101

PCB 118 coelutes - PCB 106/118

PCB 128 coelutes - PCB 128/167

PCB 138 coelutes - PCB138/163/164

PCB 170 coelutes - PCB170/190

chrysene colutes - chrysene/triphenylene

benzo(j)fluoranthene coelutes - benzo(j+k)flouranthene

14 PCB congener analyses: The following co-elutions are observed and may effect the reported results for the following congeners:

PCB 28 and 20

PCB 44, 47, and 65

PCB 95 and 100

PCB 99 and 83

PCB 101, 90, and 113

PCB 138, 129, 160 and 163

PCB 149 and 147

PCB 153 and 168

PCB 156 and 157

PCB 180 and 193

Naphthalene, 2-Methylnaphthalene, and 1-Methylnaphthalene were detected above the minimum calibration level in the associated method 

blanks. As a result, there is a likely high bias to the results for these target analytes.

15 In performing the analytical work for the chlorinated pesticides and the congener PCBs by GC/ECD, the laboratory did evaluate the results 

that were generated from each of two columns in deriving a result for a particular compound, and has reported the lower of the two values. 

 The laboratory did evaluate instrument response to the established reporting limit, and has not reported derived results from instrument 

 response to the established reporting limit, and has not reported derived results from instrument response below that limit. 

The established reporting limit is based on the lowest concetration level in the initial calibration(s).

*triphenylene and chrysene are known to co-elute in this method w/ virtually the same mass spectral aspect.

**benzo[j]fluoranthene is known to co-elute with benzo[b] or benzo[k] fluoranthene in this method w/ virtually the same mass spectral aspect.
80

Appendix D: Laboratory Notes Accompanying Data, Marine Sediment XIV
81

Lab Additional notes for Sediment XIV

1a Used a DB-17 column to separate the chrysene from triphenylene and the dibenz[a,h]anthracene from dibenz[a,c]anthracene

2 Note: Despite the GPC clean-up for the Pesticides there was a fair amount of matrix interference present. The final extract was yellow

in color and required that the samples be diluted prior to analysis (either a (1/5) or (1/10)). Additionally, there were 

a fair number of additional peaks in the chromatograms on both the primary and secondary columns. Although the pesticides

confirmed', the obvious presence of other compounds, as evidenced by several high percent differences for the results 

between the columns for several compounds, may have biased some results. All of the concentrations above, 

including the < conc, were adjusted for sample weight, final volume, dilution performed and percent moisture.

Note: Historically, the laboratory does not perform any clean-up methods on GCMS Semi-volatile samples. Attempts in

the past to 'clean-up' soil samples (i.e. GPC or otherwise) have not yielded significant beneficial results. The laboratory will attempt to 

concentrate the extracted samples to 0.5 mL prior to GCMS analysis. In two cases the extract could only be concentrated to 1.0 mL.

Additionally, due to a varying amount of background (i.e. baseline rise/'humpograms') several extracts were diluted by (1/2)

just prior to analysis. All of the concentrations above, including the < conc, were adjusted for sample weight, final volume,

dilution performed and percent moisture.

3 Sediment XIVSediment XIVSediment XIVSRM 1944 SRM 1944 SRM 1944

Sample 1 Sample 2 Sample 3 Sample 1 Sample 2 Sample 3

(ng/g dry mass) (ng/g dry mass) (ng/g dry mass) (ng/g dry mass) (ng/g dry mass) (ng/g dry mass)

chrysene + triphenylene 2150 2250 2250 5800 5970 5960

B[j]F + B[k]F 1610 1650 1660 3680 3550 3560

Dibenzithiophene 153 162 168 708 732 759

Retene 224 236 237 395 411 389

PCB 17 19.9 19.7 20.6 29.2 29.4 29.4

PCB 33 26.40 26.00 27.20 38.40 41.60 41.20

PCB 70 72.30 70.60 72.60 84.60 88.90 88.90

PCB 74 31.10 30.50 31.40 36.50 38.60 39.00

PCB 82 11.20 11.10 10.40 13.10 13.60 12.90

PCB 87 28.10 27.60 29.20 31.60 32.40 32.50

PCB 110 68.80 67.40 69.10 73.30 79.000 77.600

PCB 151 17.0 16.5 17.1 16.30 17.30 17.20

PCB 153 + PCB 132 90.7 88.8 91.9 90.90 96.70 96.00

PCB 158 7.77 7.68 7.91 8.20 8.62 8.56

PCB 171 5.52 5.41 5.52 5.11 5.430 5.410

PCB 177 13.30 13.00 13.50 12.20 13.00 12.90

PCB 183 13.10 12.90 13.30 12.10 13.100 13.000

PCB 191 <1.04 <1.08 <1.22 <1.37 <1.20 <1.08

PCB 199 13.50 13.20 13.40 12.30 13.00 13.00

PCB 205 <1.03 <1.08 <1.21 <1.36 <1.19 <1.08

PCB 208 2.80 2.77 2.78 2.62 2.920 2.950

Other - Analytes coelute with others and are reported as sums in the additional data portion.

NA - not analyzed; the analyte is not included in our reported suite of compounds

I - the analyte concentration could not be reported; the analyte could not be quantitated due to the presence of interfering compounds

PCB 101 is assumed to coelute with PCB 90.

PCB 138 is assumed to coelute with PCBs 163 and 164.

PCB 187 is assumed to coelute with PCBs 159 and 182.

4 Due to problems with laboratory TS results, the NIST provided TS value of 47.3% was used for all 3 replicates of Sediment XIV.

Due to problems with laboratory TS results, the NIST provided TS value of 98.7% was used for all 3 replicates of SRM1944.

Pesticide and congener samples 105 and 120 were run in the same instrument batch but were prepped in 2 separate extraction batches.

6 NA = not analyzed

"other" = congener co-elutes as follows:

PCB co-elutions: PCB 18/30, 20/28, 44/47/65, 95/100/93/102/98, 99/83, 101/90/113, 128/166, 138/163/129/160, 149/147, 153/168, 156/157, 180/193

BDE co-elutions: BDE 17/25, 28/33, 119/120, 138/166

PAH co-elutions: triphenylene/chrysene, benzo[j]fluoranthene/benzo[k]fluoranthene, 

1,2,6-trimethynaphthalene/1,2,7-trimethynaphthalene/1,6,7-trimethylnaphthalene/2,3,5-trimethynaphthalene, 

 dibenz[a,h]anthracene/dibenz[a,c]anthracene

8 pg means columns did not agree

This is a qualifier that is used for GC. It means that the % difference between the results from both columns is >40%.

9 PCB 101 coelutes with PCB 90

PCB 153 coelutes with PCB 132 and 168

PCB 170 coelutes with PCB 190

PCB 8 coelutes with PCB 5

PCB 195 coelutes with PCB 208

<symbol refers to values less than our MDL

The reported value of chrysene is the sum of chrysene and triphenylene

The reported value of benzo(b)fluoranthene is the sum of benzo(b)fluoranthene, benzo(k)fluoranthene and benzo(j)fluoranthene

Insufficient sample to determine PBDE

10 Amount extracted for pesticides was 2.0 grams. Note that both tests are smaller amounts than we normally extract for West Coast 

sediment projects. There was insufficient sample volume to extract using our normal proceedure (20 grams for PAH analysis, 

10 grams for pesticides)
82

11 Sediment XIVSediment XIVSediment XIVSRM 1944 SRM 1944 SRM 1944

Sample 1 Sample 2 Sample 3 Sample 1 Sample 2 Sample 3

(ng/g dry mass) (ng/g dry mass)(ng/g dry mass) (ng/g dry mass) (ng/g dry mass) (ng/g dry mass)

2-methylnapthalene 245 252 314 734 972 780

1-methylnapthalene 90.8 111 118 381 465 480

2,3,5-trimethylnapthalene 107 115 107 318 489 386

dibenzothiophene 94.6 121 87.7 574 556 575

C1-Naphthalenes 340 372 434 1120 1730 1290

C2-Naphthalenes 494 531 570 3070 2400 2970

C3-Naphthalenes 1360 5-Oct-04 19-Jun-02 4380 4280 4540

C4-Naphthalenes <15.6 <15.4 <15.4 <10 <10 <10

C1-Fluorenes <15.6 <15.4 <15.4 <10 <10 <10

C2-Fluorenes <15.6 <15.4 <15.4 <10 <10 <10

C3-Fluorenes <15.6 <15.4 <15.4 <10 <10 <10

C1-Phenanthrene/Anthracene 2510 2320 2070 8290 7600 7480

C2-Phenanthrene/Anthracene 4790 6170 5510 13000 12100 12500

C3-Phenanthrene/Anthracene 4500 <15.4 <15.4 189.000 9730 10700

C4-Phenanthrene/Anthracene <15.6 <15.4 <15.4 <10 <10 <10

C1-Dibenzothiophenes <15.6 <15.4 <15.4 <10 <10 <10

C2-Dibenzothiophenes <15.6 <15.4 21.9 <10 <10 <10

C3-Dibenzothiophenes <15.6 <15.4 531 <10 <10 <10

C1-Fluoranthenes/pyrenes 1860 2800 23.8 7190 7350 6630

C1-Chrysenes 1540.00 1730 <15.4 4650 4190 4470

C2-Chrysenes <15.6 <15.4 <15.4 <10 <10 <10

C3-Chrysenes <15.6 <15.4 <15.4 <10 <10 <10

C4-Chrysenes <15.6 <15.4 <15.4 <10 <10 <10

PCB 33 19.2 19.1 20.6 28.6 27.6 30.3

PCB 56 25.7 27.5 26.3 28.5 27.4 28.9

PCB 60 10.1 11.1 11 13 11 12.5

PCB 70/74 85.8 93.8 97.6 98.3 102 103

PCB 87/97 43.3 45.2 47 44.5 50 49.6

PCB 110 66.1 61.8 61 65.6 66.5 66.2

PCB 132 19.2 19.6 20.2 18.5 18.7 19.7

PCB 141 11.1 5.16 6.32 11.8 11.2 10.9

PCB 151 23.5 23.8 23 21.8 21.2 22.2

PCB 158 6.36 6.28 6.82 5.96 6.75 7.32

PCB 174 20.4 22.1 25.2 16.4 17.2 21.4

PCB 177 11.9 9.57 11.3 9.83 10.6 10.7

PCB 183 14 15 16.5 11.8 12 15.9

PCB 201 1.75 2.16 1.48 1.44 1.5 1.25

PCB 203 8.4 8.7 9.96 6.2 7.15 7.98

PBDE

8 and 11 coelute

12 and 13 coelute

17 and 25 coelute

28 and 33 coelute

51 and 75 coelute

119 and 120 coelute

138 and 166 coelute

PBDE 7 0.899 0.993 0.9 0.5 0.631 0.538

PBDE 8/11 0.588 0.572 0.544 0.439 0.421 0.413

PBDE 10 < 0.173 <.171 <.171 < 0.111 <.111 <.111

PBDE 12/13 < 0.0839 0.0218 <.0106 0.0366 <.0209 <.0113

PBDE 32 < 0.0544 <.0598 <.0429 < 0.0643 <.0337 <.0357

PBDE 35 < 0.00922 <.0185 <.0138 < 0.0865 <.0182 <.0076

PBDE 37 0.0377 0.0318 <.0238 < 0.0192 0.0207 <.0171

PBDE 77 < 0.0417 <.00708 <.0157 < 0.0138 <.0116 <.0288

PBDE 79 < 0.0144 <.00815 <.0177 < 0.0147 <.0131 <.0325

PBDE 105 < 0.0617 <.0652 <.0632 < 0.0801 <.0721 <.0696

PBDE 126 < 0.0256 <.0305 <.0297 < 0.0319 <.0305 <.0452

PBDE 128 < 0.0748 <.0797 <.0837 < 0.062 <.0786 <.0787

PBDE 140 < 0.03 <.0297 <.0312 < 0.0249 <.0293 <.0293

PBDE 204 < 0.199 <.110 <.0951 < 0.130 <.110 <.104
83

12 Several PCB congeners had concentrations that are above the upper calibration limit of the method, but do no saturate the detector.

Aldrin is noted to have matrix interference causing a raised detection limit.

4,4'-DDE and Mirex in Bottle 168 do not confirm primary and secondary column confirmation criteria.

Mirex in Bottle 171 does not confirm primary and secondary column confirmation criteria.

Typical PCB coelution on a DB-5 column - Method 1668 (209 congeners)

Di- Chlorinated PCB Coeulters

DiCB-4/10

DiCB-9/7

DiCB-8/5

DiCB-12/13

Tri- Chlorinated PCB Coeulters

TrCB-27/24

TrCB-32/16

TrCB-34/23 *

TrCB-21/20/33

Tetra- Chlorinated PCB Coeulters

TeCB-52/73

TeCB-43/49

TeCB-47/75/48

TeCB-59/42 *

TeCB-64/41/68

TeCB-74/61

TeCB-66/76/80

TeCB-56/60

Penta- Chlorinated PCB Coeulters

PeCB-98/102

PeCB-95/93

PeCB-121/88

PeCB-89/90/101

PeCB-83/108

Pe-97/86/125/111/117/87

PeCB-115/116

PeCB-85/120

PeCB-109/107

PeCB-118/106

PeCB-105/127

Hexa- Chlorinated PCB Coeulters

HxCB-135/144

HxCB-139/149

HxCB-131/142/165

HxCB-132/168

HxCB-164/163/138

HxCB-160/158

Hepta- Chlorinated PCB Coeulters

HpCB-187/182

HpCB-172/192

HpCB-170/190

Octa- Chlorinated PCB Coeulters

OcCB-196/203

*These coelutions can be resolved in some cases.

13 Analytical method used (e.g., GC-FID, GC-ECD):

Analyt. 

Instr.

Column 

Phase

Col. 

Length, m

Col. i.d., 

mm

Col. film 

thickness, 

μm

 BDE 209 GC NCIMS 5% diphenyl 15 0.25 0.1

Chrysene and triphenylene co-elute

Benzo(j)fluoranthene and benzo(k)fluoranthene co-elute 

PCB 8 was measured as cong 8+5.

PCB 101was meaured as 101+90+89.

PCB 118 measured as 118+106

PCB 128 measured as 128+167

PCB 138 measured as 164+163+138

PCB 170 measured as 170+190

14-2 PCB congener analyses: The following co-elutions are observed and may effect the reported results for the following congeners:

PCB 28 and 20

PCB 44, 47, and 65

PCB 95 and 100

PCB 99 and 83

PCB 101, 90, and 113

PCB 138, 129, 160 and 163

PCB 149 and 147

PCB 153 and 168

PCB 156 and 157

PCB 180 and 193

15 In performing the analytical work for the chlorinated pesticides and the congener PCBs by GC/ECD, the laboratory did evaluate the results 

that were generated from each of two columns in deriving a result for a particular compound, and has reported the lower of the two values. 

 The laboratory did evaluate instrument response to the established reporting limit, and has not reported derived results from instrument 

 response to the established reporting limit, and has not reported derived results from instrument response below that limit. 

The established reporting limit is based on the lowest concetration level in the initial calibration(s).

*triphenylene and chrysene are known to co-elute in this method w/ virtually the same mass spectral aspect.

**benzo[j]fluoranthene is known to co-elute with benzo[b] or benzo[k] fluoranthene in this method w/ virtually the same mass spectral aspect.
84

Appendix E: Laboratory Methods Used, Mussel Tissue XIII
85

g extracted g extracted TEO Extraction Extraction Extraction Extraction

Lab # Reported QA07TIS13 SRM 2977 Determination Method Solvent Time other

1a 3/10/2008 1 dry 1 dry gravimetric PFE dichloromethane (DCM) 3 cycles each 5 min

temp = 100 oC; pressure 2000 psi; 3 

static cycles / sample

3 1/28/2008 2 dry 2 dry gravimetric PFE DCM approx. 16 min temp = 100 o

C; pressure 2000 psi

4 1/31/2008 2 dry 1 dry Sonication DCM 3 x 2.0 min each

5 1/31/2008 1.32 dry 1.32 dry gravimetric microwave acetone:hexane (8:2) 15 min at 100 °C

6 1/31/2008 1 dry 1 dry gravimetric Soxhlet DCM 16 h

7 1/31/2008 0.6 dry 0.9 dry gravimetric Polytron homogenizer DCM (3x 100 mL) 2 min

decanted and filtered during 

extraction

8 1/31/2008 2 dry 2 dry Method 3541

EPA 3541 (PAH); EPA 3540 

(pesticide) DCM:Acetone (1:1)

9 1/31/2008 2 dry 2 dry gravimetric PFE DCM 13 min

temp = 100 oC; pressure 1500 psi; 2 

static cycles / sample

10 1/31/2008 1 dry NA SW-846 Method 3550B DCM

30 min shaker, 30 min heated 

sonicator bath

12 2/5/2008

 2 (PAH & 

pest): 0.5 

(PCB & BDE) 

wet 

PAH and pest - Sonication 

EPA 3550B; PCB and BDE - 

Soxhlet

PAHs: DCM; Pesticides: DCM:Acetone 

(1:1); PCB and BDE: toluene

sonication 3 x 2 min; Soxhlet 

16 h

13 2/7/2008 1.2 dry 1.2 dry gravimetric PFE DCM:acetone (1:1) 30 min

temp = 100 oC; pressure 2000 psi; 3 

x 5 min static cycles / sample

14 2/15/2008 1 dry 1 dry micro-colorimetric assay Soxhlet

DCM (PAHs); Acetone:hexane (1:1) 

(PCBs) 16 h

15 2/15/2008

0.75(PAH); 

0.75 (pest); 

0.5(PCB) 

dry

1(PAH); 1 

(pest); 

0.75(PCB) 

dry gravimetric Tissumizer

PAHs: DCM:Acetone (1:1); PCBs & 

Pesticides: Hexane Acetone (1:1) 2 min

add 30 g sodium sulfate; extraction 

process repeated 3 x
86

Method of 

Lab # Sample extract cleanup method quantitation

1a silica solid phase extraction (SPE) column; condition and elute with 15 mL of 10 % dichloromethane (DCM) in hexane IS

3 Gravity flow column with silica gel and neutral alumina, followed by HPLC-SEC to elute fraction containing analytes of interest IS

4 silica gel; activated copper; sulfuric acid for PCBs IS

5 acid IS

6 PAHs -GPC & silica; pesticides - GPC & Florisil; PCBs - GPC, Florisil, acid/base silica, alumina IS

7 GPC (51 cm x 25 mm SX-3 Biobeads); 7.3% deactivated silica gel IS

8 pesticides - GPC IS for PAHs; ES for pest

9 silica/alumina colum chromatography IS

10 PAHs - GPC; pesticides - sulfur clean-up (SW-846 Method 3660) & GPC on batch B&C IS for PAHs; ES for pest

12 pest - florisil SPE and Hg to remove sulfur; PCBs and BDEs - acid/neutral silica column and acid alumina column

IS for PAHs, PCBs, BDEs; ES 

for pest

13 GPC (SX-3 Biobeads); SPE using silica IS

14 GPC, neutral silica gel (PAHs); acid/neutral silica gel, florisil (PCBs) IS

15 PAHs - GPC and silica gel; PCBs - sulfuric acid; pesticides - GPC and silica gel

IS for PAHs; ES for pest, 

PCBs
87

PAHs Calibration Curve

Lab # Instrument Phase Dimensions # points range

1a GC/MS DB-XLB 60m x 0.25 mm, 0.25μm film 6 1 ng - 500 ng extracted

3 GC/MS DB-5 60m x 0.25 mm, 0.25μm film 6 0.001 ng/μL - 1.0 ng/μL

4 GC/MS RTX-5 Sil MS 30m x 0.28 mm, 0.25μm film 5 50 ng/mL - 5000 ng/mL

6 GC/MS RTX-5 30m x 0.25 mm, 0.25μm film 5 50 ng/mL - 5000 ng/mL

7 GC/MS HP-5MS 30m x 0.25 mm, 0.25μm film 5 10 ng/mL - 500 ng/mL

8 GC/MS DB-5MS 30m x 0.32 mm, 0.5μm film 7 0.2 ng - 80 ng

9 GC/MS HP-5MS 60m x 0.25 mm, 0.25μm film 5 20 ng/mL - 1000 ng/mL

10 GC/MS ZB-5MS 30m x 0.25 mm, 0.25μm film 7 20 μg/L - 5000 μg/L

12 GC/MS DB-5MS 30m x 0.25 mm, 0.25μm film 5 50 ng/mL - 5000 ng/mL

13 GC/IT-MS 5% diphenyl 30m x 0.25 mm, 0.25μm film 5 30 ng/mL - 4200 ng/mL

14 GC/MS 5% diphenyl 60m x 0.25 mm, 0.25μm film 7 1 ng/g - 250 ng/g

15 GC/MS Rxi-5MS 30m x 0.25 mm, 0.25μm film 5 20 ng/mL - 1000 ng/mL

PBDEs Calibration Curve

Lab # Instrument Phase Dimensions # points range

1a GC/MS NCI DB-5 15m x 0.25 mm, 0.25μm film 6 1 ng - 400 ng extracted

3 GC/MS DB-5 60m x 0.25 mm, 0.25μm film 4 0.0025 ng/μL - 1 ng/μL

12 GC/HRMS DB-5HT 30m x 0.25 mm, 0.1μm film 6 1 ng/mL - 5000 ng/mL

13 GC/MS 5% diphenyl 30m x 0.25 mm, 0.25μm film 5 0.25 ng/mL - 25 ng/mL
88

PCBs Calibration Curve PESTICIDES Calibration Curve

Lab # Instrument Phase Dimensions # points range Instrument Phase Dimensions # points range

1a GC/MS DB-XLB 60m x 0.25 mm, 0.25μm 6 1 ng - 300 ng extracted GC/MS DB-XLB 60m x 0.25 mm, 0.25μm 6 1 ng - 300 ng extracted

3 GC/MS DB-5

60m x 0.25 mm, 0.25μm 

film 6

0.001 ng/μL - 0.31 

ng/μL GC/MS DB-5

60m x 0.25 mm, 0.25μm 

film 6

0.001 ng/μL - 0.31 

ng/μL

4 GC/MS RTX-5

60m x 0.25 mm, 0.25μm 

film 6 2 ng/mL - 100 ng/mL GC/MS RTX-5

60m x 0.25 mm, 0.25μm 

film 6 2 ng/mL - 100 ng/mL

5 GC-ECD DB-5

60m x 0.25 mm, 0.25μm 

film 5 4 ng/mL - 120 ng/mL GC-ECD DB-5

60m x 0.25 mm, 0.25μm 

film 5 4 ng/mL - 120 ng/mL

6 GC/HRMS SPB-Octyl 30m x 0.25 mm, 0.1μm film 5 1 ng/mL - 2000 ng/mL GC/HRMS DB-5 60m x 0.25 mm, 0.1μm film 5

10 ng/mL - 4000 

ng/mL

7 GC-ECD

HP-5MS & DBXLB30m x 0.25 mm, 0.25μm 

film 5 5 ng/mL - 50 ng/mL GC-ECD

HP-5MS & DBXLB30m x 0.25 mm, 0.25μm 

film 5 5 ng/mL - 50 ng/mL

8 GC-ECD MR-1/MR-2 30m x 0.53 mm, 1μm film 6 0.001 ng - 0.2 ng

9 GC-ECD DB-5, DB-17

30m x 0.25 mm, 0.25μm 

film 5 5 ng/mL - 200 ng/mL GC-ECD DB-5, DB-17

30m x 0.25 mm, 0.25μm 

film 5 5 ng/mL - 200 ng/mL

10 GC-ECD MR-1/MR-2

30m x 0.53 mm, 0.5 μm 

film (MR-1) or 0.25 μm 

film (MR-2) 7 1 μg/L - 100 μg/L

12 GC/HRMS DB-5

60m x 0.32 mm, 0.25μm 

film 5 1 ng/mL - 1000 ng/mL GC-ECD STX-CLP

30m x 0.32 mm, 0.25μm 

film 6 1.25 ng/mL - 50 ng/mL

13 GC/MS 5% diphenyl

30m x 0.25 mm, 0.25μm 

film 7 0.5 ng/mL - 100 ng/mL

GC/MS 

NCI 5% diphenyl

30m x 0.25 mm, 0.25μm 

film 8

0.25 ng/mL - 100 

ng/mL

14 GC/HRMS SPB-Octyl 30m x 0.25 mm, 0.25μm 6 0.1 ng/g - 200 ng/g

15 GC-ECD

RTX-5/RTXPCBeach one 60m x 0.25 mm, 

0.25μm 5 2 ng/mL - 100 ng/mL GC-ECD

RTX-CLP/RTXCLPII

30m x 0.32 mm, 0.5 μm 

film (CLP) or 0.25 μm film 

(CLPII) 5 2 ng/mL - 100 ng/mL
89

PAHs corrected for

Lab # IS/surrogate added prior to extraction Used? added prior to analysis Used? recovery? others?

1a

deuterated naphthalene, biphenyl, acenaphthene, phenanthrene, fluoranthene, pyrene, B[a]A, B[a]P, perylene, 

B[ghi]P, indeno[1,2,3-cd]pyrene x

2

1,4-DCB-D4; Naphthalene-D8;Acenaphthene-d10;Phenanthrene-d10;Chrysened12;Perylene-d12 x n

3 deuterated naphthalene, acenaphthene, B[a]P x hexamethylbenzene

deuterated phenanthrene 

prior to clean-up

4 deuterated naphthalene, phenanthrene, chrysene deuterated fluorene, acenaphthene, B[a]P x n

6

deuterated naphthalene, 2-methylnaphthalene, biphenyl, 2,6-dimethylnaphthalene, acenaphthylene, 

phenanthrene, fluoranthene, B[a]A, chrysene, B[b]F, B[k]F, B[a]P, perylene, DB[a,h]A, indeno[1,2,3-

cd]perylene, B[ghi]P x deuterated acenaphthene, pyrene, B[e]P - used to quantify labelled surrogates only.

7 deuterated napthalene, acenaphthene, phenanthrene, fluoranthene, chrysene, B[a]P, deuterated fluorene, pyrene, perylene x n

8

Surrogates:Nitrobenzene-d5, 2-Fluorobiphenyl, Terphenyl-d14, Phenol-d5, 2-Fluorophenol, 2,4,6 

Tribromophenol, 2-Chlorophenol-d4, 1,2 Dichlorobenzene-d4

IS:1,4 Dichlorobenzene-d4,Naphthalene-d8, Acenaphthene-d10, Phenanthrened10,Chrysene-d12, Perylene-d12 n

9 surrogates-deuterated naphthalene, acenaphthene, phenanthrene, chrysene, perylene IS-deuterated fluorene, pyrnee, B[a]P x y

10 surrogates-2-fluorophenol, phenol-d5, nitrobenzene-d5, 2-fluorobiphenyl, 2,4,6-tribromophenol, p-trephine-d14

IS:1,4 Dichlorobenzene-d4,Naphthalene-d8, Acenaphthene-d10, Phenanthrened10,Chrysene-d12, Perylene-d12 n

12 mixture of deuterated PAHs x four carbon-13 labeled PAHs

13

deutereated perylene, B[e]P, acenaphthene, acenaphthylene, antracene, B[a]A, B[b]F, B[k]F, B[ghi]P, B[a]P, 

Chrysene, DB(a,h)A, fluoranthene, fuorene, indeno(1,2,3-cd)pyrene, napthalene, phenanthrene, pyrene. x p-terphenyl

14

deuterated 1,4-dichlorobenzene, naphthalene, 2-methylnaphthalene, 1-methylnaphthalene, acenaphthylene, 

phenanthrene, dibenzothiophene, 2,6-dimethylnaphthalene, anthracene, fluoranthene, B[a]A, chrysene, B[b]F, 

B[k]F, B[a]P, perylene, indeno[1,2,3-cd]pyrene, DB[a,h]A, B[ghi]P x deuterated acenaphthene, pyrene, B[e]P, pyrene

15 deuterated 1,4-dichlorobenzene, naphthalene, acenapthene, phenanthrene,chrysene, perylene x deuterated fluorene, B[a]P

PBDEs corrected for

Lab # IS/surrogate added prior to extraction Used? added prior to analysis Used? recovery? others?

1a Fluorinated BDE 47 x

3 PCB 103 x tetrachloro-o-xylene

tetrachloro-m-xylene prior to 

clean-up

12 mixture of carbon-13 labeled BDEs x carbon-13 labeled PCBs and one BDE

13 13C12 labeled BDE 28,47,99,100,118,153,183 x delta-HCH
90

Pesticides corrected for

Lab # IS/surrogate added prior to extraction Used? added prior to analysis Used? recovery? others?

1a

carbon-13 labeled 4,4’-DDE, 4,4'-DDT, lindane, and transnonachlor x

3 PCB 103 x tetrachloro-o-xylene

tetrachloro-m-xylene prior 

to clean-up

4 13C6-gamma-HCH, 13C12-4,4'-DDT

3-chlorobiphenyl; 2,3,3',4,4',5,5',6-

octachlorobiphenyl (13C12) x n

5 2,5-dichloro-m-terphenyl x

6

13C-labeled HCB, b-HCH, g-HCH, d-HCH, Heptachlor, 

Aldrin, Oxychlordane, t-Chlordane, t-Nonachlor, cnonachlor, DDE, DDD, DDT, Mirex, Heptachlor-epoxide, 

Dieldrin, Endrin, Endrin-aldehyde, Methoxychlor, 

Endosulphan-I, Endosulphan-II x

13C12-labeled PCBs 52, 138, 153, used 

to quantify labelled surrogates only.

7 g-chlordene, b-HCH 4,4'-dibromooctafluorobiphenyl x n

9

surrogates - 4,4'-dibromooctachlorobiphenyl; 2,3',4,5',6-

pentachlorobiphenyl, 2,2',3,3',4,5,5',6-octachlorobiphenyl IS - tetrachloro-m-xylene x y

10 surrogates-tetrachloro-m-xylene, decachlorobiphenyl n

12

surrogates added prior to 

extraction but not used for 

quantitation

13

Carbon-13 labeled lindane, chlorpyrifox, endosulfan-I, 

endosulfan-II, 4,4'-DDD, 4,4'-DDT, heptachlor epoxide, 2,4'-

DDE x delta-HCH
91

PCBs corrected for

Lab # IS/surrogate added prior to extraction Used? added prior to analysis Used? recovery? others?

1a PCB 103 and PCB 198 x

3 PCB 103 x tetrachloro-o-xylene

tetrachloro-m-xylene prior 

to clean-up

4

2',3,5-trichlorobiphenyl, 2,2',4,6,6'-pentachlorobiphenyl, 

2,3,3',4,5,5',6-heptachlorobiphenyl

3-chlorobiphenyl; 2,3,3',4,4',5,5',6-

octachlorobiphenyl (13C12) x n

5 PCB 198 x

6

13C12-labeled PCBs 

4,15,19,37,54,77,81,104,105,114,118,123,126,155,156,157,

167,169,170,180,188,189,202,205,206,208,209 x

13C12-labeled PCBs 9,52,101,138,194, 

used to quantify labelled surrogates only.

13C12-labelled PCBs 

28,111,178, used as cleanup 

standards.

7 PCB 103, PCB 198 4,4'-dibromooctafluorobiphenyl x n

9

surrogates - 4,4'-dibromooctachlorobiphenyl; 2,3',4,5',6-

pentachlorobiphenyl, 2,2',3,3',4,5,5',6-octachlorobiphenyl IS - tetrachloro-m-xylene x y

12 mixture of carbon-13 labeled PCBs x carbon-13 labeled PCBs

13

Carbon-13 labeled PCB 

3,15,28,52,118,153,180,208,194,209 x delta-HCH

14

Carbon-13 labeled 2-MoCB, 4-MoCB, 2,2'-DiCB, 4,4'-

DiCB, 2,2',6-TriCB, 3,4,4'-TriCB, 2,2',6,6'-TeCB, 3,3',4,4'-

TeCB, 3,4,4',5-TeCB, 2,3',4,6,6'-PeCB, 2,3,3',4,4'-PeCB, 

2,3,4,4',5-PeCB, 2,3',4,4',5-PeCB, 2',3,4,4',5-PeCB, 

3,3',4,4',5-PeCB, 2,2',4,4',6,6'-HxCB, 2,3,3',4,4',5-HxCB, 

2,3,3',4,4',5-HxCB, 2,3',4,4',5,5'-HxCB, 3,3',4,4',5,5'-HxCB, 

2,2',3,3',4,4',5-HpCB, 2,2',3,4',5,6,6'-HpCB, 2,3,3',4,4',5,5'-

HpCB, 2,2',3,3',5,5',6,6'-OcCB, 2,3,3',4,4',5,5',6-OcCB, 

2,2',3,3',4,4',5,5',6-NoCB, 2,2',3,3',4',5,5',6,6'-NoCb, DcCB x

Carbon-13 labeled 2,5-DiCB, 2,4',5-

TriCB, 2,4',6-TriCB, 2,2',5,5'-TeCB, 

2,2',4',5,5'-PeCB, 3,3',4,5,5'-PeCB, 

2,2',3',4,4',5'-HxCB, 2,2',3,4,4',5,5'-

HpCB, 2,2',3,3',4,4',5,5'-OcCB

clean-up standards - Carbon13 labeled 2,4,4'-TriCB, 

2,3,3',5,5'-PeCB, 

2,2',3,3',5,5',6-HpCB, 
92

Appendix F: Laboratory Methods Used, Marine Sediment XIV
93

g extracted g extracted % water Extraction Extraction Extraction Extraction

Lab # Reported QA07SED14 SRM 1944 Determination Method Solvent Time other

1a 3/10/2008 1 wet 1 dry oven 120 °C PFE dichloromethane (DCM) 3 cycles each 5 min

temp = 100 oC; pressure 2000 psi; 3 

static cycles / sample

2 12/18/2007 5 wet 5 dry EPA 2540G EPA 3541 Organics

PAHs: DCM:Acetone (1:1); Pesticides: 

Hexane:Acetone (1:1) EPA 3541 2.5 h

3 1/28/2008 2 wet 1 dry oven at 120 °C overnight PFE DCM approx. 16 min temp = 100 o

C; pressure 2000 psi

4 1/31/2008 10 wet 5 dry NA Sonication DCM 3 x 2.0 min each

5 1/31/2008 4-5 wet 1.5 dry oven 100 °C for 24 h Sonication acetone:hexane (1:1) 3 x 20 min each

6 1/31/2008 7 wet 3 dry gravimetric Soxhlet DCM 16 h

7 1/31/2008 6 wet 8 dry Sonication acetone:hexane (1:1) 3 x 3 min each

decanted and filtered during 

extraction; back extracted to remove 

residual H20 in acetone

8 1/31/2008 7.5 wet

 5 (PAH): 10 

(pesticide) dry 

EPA 3541 (PAH); EPA 3540 

(pesticide)

PAHs: DCM:Acetone (1:1); Pesticides: 

Hexane Acetone (1:1)

9 1/31/2008 2.5 wet 0.5 dry oven 105 °C PFE DCM 13 min

temp = 100 oC; pressure 1500 psi; 2 

static cycles / sample

10 1/31/2008 10 wet 10 dry oven 105 °C SW-846 Method 3550B DCM

30 min shaker, 30 min heated 

sonicator bath

11 1/31/2008 1 wet 1 dry EPA 160.3 PFE DCM:acetone (1:1) approx. 30 min

12 2/5/2008

 4 (PAH & 

pest): 1 (PCB 

& BDE) wet ASTM D-2216

PAH and pest - Sonication 

EPA 3550B; PCB and BDE - 

Soxhlet

PAHs: DCM; Pesticides: DCM:Acetone 

(1:1); PCB and BDE: toluene

sonication 3 x 2 min; Soxhlet 

16 h

13 2/7/2008 5 wet 0.4 dry oven 120 °C for 24 h PFE DCM:acetone (1:1) 15 min

temp = 100 oC; pressure 1500 psi; 3 

x 5 min static cycles / sample

14-1 2/15/2008 1 wet 1 dry EPA 160.3 Soxhlet

DCM:acetone (1:1) for jar 166 and SRM 

1944; DCM for jars 169 and 172 18 h

14-2 2/15/2008 1 wet 1 dry EPA 160.3 Soxhlet

DCM for PAHs; acetone:hexane (1:1) for 

PCBs 16 h

15 2/15/2008

2(PAH); 8 

(pest); 

5(PCB) wet

1(PAH); 4 

(pest); 

2.5(PCB) 

wet gravimetric Sonication

PAHs: DCM:Acetone (1:1); PCBs & 

Pesticides: Hexane Acetone (1:1) 3 min

add 60 g sodium sulfate; extraction 

process repeated 3 x
94

Method of 

Lab # Sample extract cleanup method quantitation

1a silica solid phase extraction (SPE) column; condition and elute with 15 mL of 10 % dichloromethane (DCM) in hexane; sulfur IS

2 EPA 3640A Pesticides only IS for PAHs; ES for pest

3 Gravity flow column with silica gel and neutral alumina, followed by HPLC-SEC to elute fraction containing analytes of interest IS

4 silica gel; activated copper; sulfuric acid for PCBs IS

5

silica cartridge; condition (5 mL) and elute (15 mL) with 10% DCM in hexane; 1/2 extract treated with acid followed by activated 

copper to remove sulfur IS

6 PAHs -silica; pesticides - Florisil; PCBs and BDEs - Florisil, acid/base silica, alumina IS

7 GPC (51 cm x 25 mm SX-3 Biobeads); 3% deactivated silica gel IS

8 PAHs - none; pesticides - Carboprep 90 IS for PAHs; ES for pest

9 silica/alumina colum chromatography; addition of copper for sulfur removal IS

10 PAHs - none; pesticides - sulfur clean-up (SW-846 Method 3660) IS for PAHs; ES for pest

11 sodium sulfate; GPC; alumina for pesticides, PCBs, and BDEs IS

12 pest - florisil SPE and Hg to remove sulfur; PCBs and BDEs - acid/neutral silica column and acid alumina column

IS for PAHs, PCBs, BDEs; ES 

for pest

13

Post extraction activated copper and filtration through separation paper and sodium sulfate; GPC (SX-3 Biobeads); SPE using silica 

for PCBs and pest and cyano for PAHs IS

14-1 silica gel for PAHs IS

14-2 PAHs - GPC and neutral silica gel; PCBs - acid/neutral silica gel, florisil, sulfur IS

15 PAHs - GPC and silica gel; PCBs - sulfuric acid and sulfur; pesticides - GPC, silica gel, and sulfur

IS for PAHs; ES for pest, 

PCBs
95

PAHs Calibration Curve

Lab # Instrument Phase Dimensions # points range

1a GC/MS DB-XLB 60m x 0.25 mm, 0.25μm film 6 5 ng - 2500 ng extracted

2 GC/MS ZB-5 30m x 0.25 mm, 0.5μm film 9 to 11 0.005 ng/μL - 0.160 ng/μL

3 GC/MS DB-5 60m x 0.25 mm, 0.25μm film 7 0.015 ng/μL - 10.0 ng/μL

4 GC/MS RTX-5 Sil MS 30m x 0.28 mm, 0.25μm film 5 50 ng/mL - 5000 ng/mL

5 GC/MS DB-5MS 60m x 0.25 mm, 0.25μm film 5 0.5 ng/μL - 20 ng/μL

6 GC/MS DB-5 30m x 0.25 mm, 0.25μm film 5 50 ng/mL - 5000 ng/mL

7 GC/MS HP-5MS 30m x 0.25 mm, 0.25μm film 5 10 ng/mL - 500 ng/mL

8 GC/MS DB-5MS 30m x 0.32 mm, 0.5μm film 7 0.2 ng - 80 ng

9 GC/MS HP-5MS 60m x 0.25 mm, 0.25μm film 5 20 ng/mL - 1000 ng/mL

10 GC/MS ZB-5MS 30m x 0.25 mm, 0.25μm film 10 20 μg/L - 5000 μg/L

11 GC/MS Equity 5 30m x 0.25 mm, 0.5μm film 9 0.020 μg/mL - 8.0 μg/mL

12 GC/MS DB-5MS 30m x 0.25 mm, 0.25μm film 5 50 ng/mL - 5000 ng/mL

13 GC/IT-MS 5% diphenyl 30m x 0.25 mm, 0.25μm film 7 30 ng/mL - 4200 ng/mL

14-1 GC/MS 5% diphenyl 30m x 0.25 mm, 0.25μm film 7 100 ng/g - 25000 ng/g

14-2 GC/MS 5% diphenyl 60m x 0.25 mm, 0.25μm film 7 1 ng/g - 250 ng/g

15 GC/MS Rxi-5MS 30m x 0.25 mm, 0.25μm film 5 20 ng/mL - 1000 ng/mL

PBDEs Calibration Curve

Lab # Instrument Phase Dimensions # points range

1a GC/MS NCI DB-5 15m x 0.25 mm, 0.25μm film 6 2 ng - 500 ng extracted

3 GC/MS DB-5 60m x 0.25 mm, 0.25μm film 4 0.0025 ng/μL - 1 ng/μL

6 GC/HRMS DB-5HT 30m x 0.25 mm, 0.1μm film 5 1 ng/mL - 2500 ng/mL

11 GC/HRMS 5% phenyl 30m x 0.25 mm, 0.1μm film 6

1 ng/mL - 500 ng/mL, 

except BDE 209 10 

ng/mL - 5000 ng/mL 

12 GC/HRMS DB-5HT 30m x 0.25 mm, 0.1μm film 6 1 ng/mL - 5000 ng/mL

13 GC/MS 5% diphenyl 30m x 0.25 mm, 0.25μm film 8 0.25 ng/mL - 25 ng/mL
96

PCBs Calibration Curve PESTICIDES Calibration Curve

Lab # Instrument Phase Dimensions # points range Instrument Phase Dimensions # points range

1a GC/MS DB-XLB 60m x 0.25 mm, 0.25μm 6 5 ng - 300 ng extracted GC/MS DB-XLB 60m x 0.25 mm, 0.25μm 6 5 ng - 300 ng extracted

2 GC-ECD RTX-CLPesticide

30m x 0.53 mm, 0.42μm 

film 6

0.005 ng/μL - 0.160 

ng/μL

3 GC/MS DB-5

60m x 0.25 mm, 0.25μm 

film 6

0.001 ng/μL - 0.31 

ng/μL GC/MS DB-5

60m x 0.25 mm, 0.25μm 

film 6

0.001 ng/μL - 0.31 

ng/μL

4 GC/MS RTX-5

60m x 0.25 mm, 0.25μm 

film 6 2 ng/mL - 100 ng/mL GC/MS RTX-5

60m x 0.25 mm, 0.25μm 

film 6 2 ng/mL - 100 ng/mL

5 GC-ECD DB-5

60m x 0.25 mm, 0.25μm 

film 5 4 ng/mL - 120 ng/mL GC-ECD DB-5

60m x 0.25 mm, 0.25μm 

film 5 4 ng/mL - 120 ng/mL

6 GC/HRMS SPB-Octyl 30m x 0.25 mm, 0.1μm film 5 1 ng/mL - 2000 ng/mL GC/HRMS DB-5 60m x 0.25 mm, 0.1μm film 5

10 ng/mL - 4000 

ng/mL

7 GC-ECD

HP-5MS & DBXLB30m x 0.25 mm, 0.25μm 

film 5 5 ng/mL - 50 ng/mL GC-ECD

HP-5MS & DBXLB30m x 0.25 mm, 0.25μm 

film 5 5 ng/mL - 50 ng/mL

8 GC-ECD MR-1/MR-2 30m x 0.53 mm, 1μm film 6 0.001 ng - 0.2 ng

9 GC-ECD DB-5, DB-17

30m x 0.25 mm, 0.25μm 

film 5 5 ng/mL - 200 ng/mL GC-ECD DB-5, DB-17

30m x 0.25 mm, 0.25μm 

film 5 5 ng/mL - 200 ng/mL

10 GC-ECD MR-1/MR-2

30m x 0.53 mm, 0.5 μm 

film (MR-1) or 0.25 μm 

film (MR-2) 7 1 μg/L - 100 μg/L

11 GC/HRMS 50% n-octyl

30m x 0.25 mm, 0.25μm 

film 7 0.2 ng/mL - 800 ng/mL GC/HRMS 5% phenyl 30m x 0.25 mm, 0.1μm film 7 0.2 ng/mL - 400 ng/mL

12 GC/HRMS DB-5

60m x 0.32 mm, 0.25μm 

film 5 1 ng/mL - 1000 ng/mL GC-ECD STX-CLP

30m x 0.32 mm, 0.25μm 

film 6 1.25 ng/mL - 50 ng/mL

13 GC/MS 5% diphenyl

30m x 0.25 mm, 0.25μm 

film 7 0.5 ng/mL - 100 ng/mL

GC/MS 

NCI 5% diphenyl

30m x 0.25 mm, 0.25μm 

film 8

0.25 ng/mL - 100 

ng/mL

14-2 GC/HRMS SPB-Octyl 30m x 0.25 mm, 0.25μm 6 0.1 ng/g - 200 ng/g

15 GC-ECD

RTX-5/RTXPCBeach one 60m x 0.25 mm, 

0.25μm 5 2 ng/mL - 100 ng/mL GC-ECD

RTX-CLP/RTXCLPII

30m x 0.32 mm, 0.5 μm 

film (CLP) or 0.25 μm film 

(CLPII) 5 2 ng/mL - 100 ng/mL
97

PAHs corrected for

Lab # IS/surrogate added prior to extraction Used? added prior to analysis Used? recovery? others?

1a

deuterated naphthalene, biphenyl, acenaphthene, phenanthrene, fluoranthene, pyrene, B[a]A, B[a]P, perylene, 

B[ghi]P, indeno[1,2,3-cd]pyrene x

2

1,4-DCB-D4; Naphthalene-D8;Acenaphthene-d10;Phenanthrene-d10;Chrysene-d12;Perylened12 x n

3 deuterated naphthalene, acenaphthene, B[a]P x hexamethylbenzene

deuterated phenanthrene prior 

to clean-up

4 deuterated naphthalene, phenanthrene, chrysene deuterated fluorene, acenaphthene, B[a]P x n

5 deuterated phenanthrene, perylene, B[a]A x

6

deuterated naphthalene, 2-methylnaphthalene, biphenyl, 2,6-dimethylnaphthalene, acenaphthylene, phenanthrene, 

fluoranthene, B[a]A, chrysene, B[b]F, B[k]F, B[a]P, perylene, DB[a,h]A, indeno[1,2,3-cd]perylene, B[ghi]P x deuterated acenaphthene, pyrene, B[e]P - used to quantify labelled surrogates only.

7 deuterated napthalene, acenaphthene, phenanthrene, fluoranthene, chrysene, B[a]P, deuterated fluorene, pyrene, perylene x n

8

Surrogates:Nitrobenzene-d5, 2-Fluorobiphenyl, Terphenyl-d14, Phenol-d5, 2-Fluorophenol, 2,4,6 Tribromophenol, 

2-Chlorophenol-d4, 1,2 Dichlorobenzene-d4

IS:1,4 Dichlorobenzene-d4,Naphthalene-d8, Acenaphthene-d10, Phenanthrene-d10,Chrysened12, Perylene-d12 n

9 surrogates-deuterated naphthalene, acenaphthene, phenanthrene, chrysene, perylene IS-deuterated fluorene, pyrnee, B[a]P x y

10 surrogates-2-fluorophenol, phenol-d5, nitrobenzene-d5, 2-fluorobiphenyl, 2,4,6-tribromophenol, p-trephine-d14

IS:1,4 Dichlorobenzene-d4,Naphthalene-d8, Acenaphthene-d10, Phenanthrene-d10,Chrysened12, Perylene-d12 n

11 deuterated naphthalene, acenaphthene, phenanthrene, chrysene, perylene x deuterated fluorene, B[a]P

12 mixture of deuterated PAHs x four carbon-13 labeled PAHs

13

deutereated perylene, B[e]P, acenaphthene, acenaphthylene, antracene, B[a]A, B[b]F, B[k]F, B[ghi]P, B[a]P, 

Chrysene, DB(a,h)A, fluoranthene, fuorene, indeno(1,2,3-cd)pyrene, napthalene, phenanthrene, pyrene. x p-terphenyl

14-1 2-fluorobiphenyl and d14 terphenyl deuterated naphthalene, acenaphthene, phenanthrene, chrysene, perylene x n

14-2

deuterated 1,4-dichlorobenzene, naphthalene, 2-methylnaphthalene, 1-methylnaphthalene, acenaphthylene, 

phenanthrene, dibenzothiophene, 2,6-dimethylnaphthalene, anthracene, fluoranthene, B[a]A, chrysene, B[b]F, 

B[k]F, B[a]P, perylene, indeno[1,2,3-cd]pyrene, DB[a,h]A, B[ghi]P x deuterated acenaphthene, pyrene, B[e]P, pyrene

15 deuterated 1,4-dichlorobenzene, naphthalene, acenapthene, phenanthrene,chrysene, perylene x deuterated fluorene, B[a]P

PBDEs corrected for

Lab # IS/surrogate added prior to extraction Used? added prior to analysis Used? recovery? others?

1a Fluorinated BDE 47 x

3 PCB 103 x tetrachloro-o-xylene

tetrachloro-m-xylene prior to 

clean-up

6 13C12-labelled BDEs 15,28,47,77,99,100,126,153,154,183,209 x 13C12-labelled PCBs 52,138, used to quantify labelled surrogates only.

13C12-labelled BDE 139, 

used as cleanup standard.

11 13C12-labelled PCBs 52, 138 x 13C12-labelled BDEs 3,15,28.47.99,153,154,183,197,207,209

13C12-labelled BDE 139, 

prior to cleanup

12 mixture of carbon-13 labeled BDEs x carbon-13 labeled PCBs and one BDE

13 13C12 labeled BDE 28,47,99,100,118,153,183,209 x delta-HCH
98

Pesticides corrected for

Lab # IS/surrogate added prior to extraction Used? added prior to analysis Used? recovery? others?

1a

carbon-13 labeled 4,4’-DDE, 4,4'-DDT, lindane, and transnonachlor x

3 PCB 103 x tetrachloro-o-xylene

tetrachloro-m-xylene prior to 

clean-up

4 13C6-gamma-HCH, 13C12-4,4'-DDT

3-chlorobiphenyl; 2,3,3',4,4',5,5',6-

octachlorobiphenyl (13C12) x n

5 2,5-dichloro-m-terphenyl x

6

13C-labeled HCB, b-HCH, g-HCH, d-HCH, Heptachlor, 

Aldrin, Oxychlordane, t-Chlordane, t-Nonachlor, c-nonachlor, 

DDE, DDD, DDT, Mirex, Heptachlor-epoxide, Dieldrin, 

Endrin, Endrin-aldehyde, Methoxychlor, Endosulphan-I, 

Endosulphan-II x

13C12-labeled PCBs 52, 138, 153, used 

to quantify labelled surrogates only.

7 g-chlordene, b-HCH 4,4'-dibromooctafluorobiphenyl x n

9

surrogates - 4,4'-dibromooctachlorobiphenyl; 2,3',4,5',6-

pentachlorobiphenyl, 2,2',3,3',4,5,5',6-octachlorobiphenyl IS - tetrachloro-m-xylene x y

10 surrogates-tetrachloro-m-xylene, decachlorobiphenyl n

11

Carbon-13 labeled Hexachlorobenzene, a-BHC, b-BHC, gBHC, Aldrin, Dieldrin, Endrin, trans-chlordane, oxychlordane, 

trans-nonachlor,heptachlor,heptachlor epoxide, 4,4'DDT, 

4,4'DDE, 4,4'DDD x

Carbon-13 labeled PCB 

9,51,101,138,194

Carbon-13 labeled PCB 

28,111,178 prior to clean-up

12

surrogates added prior to 

extraction but not used for 

quantitation

13

Carbon-13 labeled lindane, chlorpyrifox, endosulfan-I, 

endosulfan-II, 4,4'-DDD, 4,4'-DDT, heptachlor epoxide, 2,4'-

DDE x delta-HCH
99

PCBs corrected for

Lab # IS/surrogate added prior to extraction Used? added prior to analysis Used? recovery? others?

1a PCB 103 and PCB 198 x

3 PCB 103 x tetrachloro-o-xylene

tetrachloro-m-xylene prior to 

clean-up

4

2',3,5-trichlorobiphenyl, 2,2',4,6,6'-pentachlorobiphenyl, 

2,3,3',4,5,5',6-heptachlorobiphenyl

3-chlorobiphenyl; 2,3,3',4,4',5,5',6-

octachlorobiphenyl (13C12) x n

5 PCB 198 x

6

13C12-labeled PCBs 

4,15,19,37,54,77,81,104,105,114,118,123,126,155,156,157,

167,169,170,180,188,189,202,205,206,208,209 x

13C12-labeled PCBs 9,52,101,138,194, 

used to quantify labelled surrogates only.

13C12-labelled PCBs 

28,111,178, used as cleanup 

standards.

7 PCB 103, PCB 198 4,4'-dibromooctafluorobiphenyl x n

9

surrogates - 4,4'-dibromooctachlorobiphenyl; 2,3',4,5',6-

pentachlorobiphenyl, 2,2',3,3',4,5,5',6-octachlorobiphenyl IS - tetrachloro-m-xylene x y

11

carbon-13 labeled PCB 

1,3,4,15,19,37,54,77,81,104,105,114,118,123,125,155,156,1

57167,169,170,180,188,189,202,205,206,208,209 x

Carbon-13 labeled PCB 

9,51,101,138,194

Carbon-13 labeled PCB 

28,111,178 prior to clean-up

12 mixture of carbon-13 labeled PCBs x carbon-13 labeled PCBs

13 Carbon-13 labeled PCB 3,15,28,52,118,153,180,208,194,209 x delta-HCH

14-2

Carbon-13 labeled 2-MoCB, 4-MoCB, 2,2'-DiCB, 4,4'-DiCB, 

2,2',6-TriCB, 3,4,4'-TriCB, 2,2',6,6'-TeCB, 3,3',4,4'-TeCB, 

3,4,4',5-TeCB, 2,3',4,6,6'-PeCB, 2,3,3',4,4'-PeCB, 2,3,4,4',5-

PeCB, 2,3',4,4',5-PeCB, 2',3,4,4',5-PeCB, 3,3',4,4',5-PeCB, 

2,2',4,4',6,6'-HxCB, 2,3,3',4,4',5-HxCB, 2,3,3',4,4',5-HxCB, 

2,3',4,4',5,5'-HxCB, 3,3',4,4',5,5'-HxCB, 2,2',3,3',4,4',5-HpCB, 

2,2',3,4',5,6,6'-HpCB, 2,3,3',4,4',5,5'-HpCB, 2,2',3,3',5,5',6,6'-

OcCB, 2,3,3',4,4',5,5',6-OcCB, 2,2',3,3',4,4',5,5',6-NoCB, 

2,2',3,3',4',5,5',6,6'-NoCb, DcCB x

Carbon-13 labeled 2,5-DiCB, 2,4',5-

TriCB, 2,4',6-TriCB, 2,2',5,5'-TeCB, 

2,2',4',5,5'-PeCB, 3,3',4,5,5'-PeCB, 

2,2',3',4,4',5'-HxCB, 2,2',3,4,4',5,5'-

HpCB, 2,2',3,3',4,4',5,5'-OcCB

clean-up standards - Carbon13 labeled 2,4,4'-TriCB, 

2,3,3',5,5'-PeCB, 

2,2',3,3',5,5',6-HpCB, 
100

Appendix G: Charts of Mussel Tissue XIII and SRM 2977 

Results by Analyte

See Tables 2 through 9 for results reported as <number, detection limit, etc. 

Charts for analytes with few reported numerical results are not included in this appendix.

Note: The numbers added to the charts are the values reported that are off the scale of the chart.

For Mussel Tissue XIII plots:

Solid line: exercise assigned value

Dotted line: z = ± 1, i. e., 25 % from assigned value

Dotted/dashed line: z = ± 2, i. e., 50 % from assigned value

Dashed line: z = ± 3, i. e., 75 % from assigned value

For SRM 2977 plots:

Solid line: material certified concentration or target value (see caption of each plot)

Dotted line: 95 % confidence interval (CI)

Dashed line: 30 % from 95 % confidence interval (CI)
101

0

50

100

150

200

250

300

1a

3456789

1012131415

laboratory number

concentration (ng/g, dry basis)

naphthalene Tissue XIII (QA07TIS13)

Assigned value = 80.9 ng/g s = 30.1 ng/g 95% CL = 23.1 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

1a

3456789

1012131415

laboratory number

concentration (ng/g dry basis)

naphthalene SRM 2977

Reference Value = 21.1 ± 1.4 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits

186
102

0

10

20

30

40

50

60

70

80

90

100

1a

3456789

1012131415

laboratory number

concentration (ng/g, dry basis)

2-methylnaphthalene Tissue XIII (QA07TIS13)

Assigned value = 49.5 ng/g s = 15.4 ng/g 95% CL = 12.9 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

1a

3456789

1012131415

laboratory number

concentration (ng/g dry basis)

2-methylnaphthalene SRM 2977

Reference Value = 17.3 ± 1.7 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
103

0

20

40

60

80

100

120

1a

3456789

1012131415

laboratory number

concentration (ng/g, dry basis)

1-methylnaphthalene Tissue XIII (QA07TIS13)

Assigned value = 56.9 ng/g s = 25.7 ng/g 95% CL = 19.8 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

1a

3456789

1012131415

laboratory number

concentration (ng/g dry basis)

1-methylnaphthalene SRM 2977

Reference Value = 15.6 ± 1.5 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
104

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1a

3456789

1012131415

laboratory number

concentration (ng/g, dry basis)

biphenyl Tissue XIII (QA07TIS13)

Assigned value = 6.71 ng/g s = 2.35 ng/g 95% CL = 2.17 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 7

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

1a

3456789

1012131415

laboratory number

concentration (ng/g dry basis)

biphenyl SRM 2977

Reference Value = 6.0 ± 1.3 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
105

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

1a

3456789

1012131415

laboratory number

concentration (ng/g, dry basis)

2,6-dimethylnaphthalene Tissue XIII (QA07TIS13)

Assigned value = 21.4 ng/g s = 8.0 ng/g 95% CL = 7.4 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 7

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

10.0

15.0

20.0

25.0

1a

3456789

1012131415

laboratory number

concentration (ng/g dry basis)

2,6-dimethylnaphthalene SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
106

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

1a

3456789

1012131415

laboratory number

concentration (ng/g, dry basis)

acenaphthylene Tissue XIII (QA07TIS13)

Assigned value = 6.61 ng/g s = 1.62 ng/g 95% CL = 1.50 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

4.50

1a

3456789

1012131415

laboratory number

concentration (ng/g dry basis)

acenaphthylene SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 10 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
107

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

1a

3456789

1012131415

laboratory number

concentration (ng/g, dry basis)

acenaphthene Tissue XIII (QA07TIS13)

Assigned value = 18.0 ng/g s = 6.8 ng/g 95% CL = 6.3 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

1a

3456789

1012131415

laboratory number

concentration (ng/g dry basis)

acenaphthene SRM 2977

Reference Value = 4.9 ± 1.2 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
108

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

1a

3456789

1012131415

laboratory number

concentration (ng/g, dry basis)

1,6,7-trimethylnaphthalene Tissue XIII (QA07TIS13)

Assigned value = 37.2 ng/g s = 19.7 ng/g 95% CL = 24.4 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 5

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

1a

3456789

1012131415

laboratory number

concentration (ng/g dry basis)

1,6,7-trimethylnaphthalene SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 7 Quantitative Results: 5

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
109

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

1a

3456789

1012131415

laboratory number

concentration (ng/g, dry basis)

fluorene Tissue XIII (QA07TIS13)

Assigned value = 21.6 ng/g s = 4.4 ng/g 95% CL = 4.6 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

1a

3456789

1012131415

laboratory number

concentration (ng/g dry basis)

fluorene SRM 2977

Certified Value = 10.30 ± 0.13 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
110

0

50

100

150

200

250

1a

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1012131415

laboratory number

concentration (ng/g, dry basis)

phenanthrene Tissue XIII (QA07TIS13)

Assigned value = 129 ng/g s = 49 ng/g 95% CL = 37 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0

20

40

60

80

100

120

1a

3456789

1012131415

laboratory number

concentration (ng/g dry basis)

phenanthrene SRM 2977

Certified Value = 36.2 ± 2.5 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
111

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

1a

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1012131415

laboratory number

concentration (ng/g, dry basis)

anthracene Tissue XIII (QA07TIS13)

Assigned value = 19.3 ng/g s = 9.2 ng/g 95% CL = 7.7 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

1a

3456789

1012131415

laboratory number

concentration (ng/g dry basis)

anthracene SRM 2977

Reference Value = 6.2 ± 1.4 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
112

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

1a

3456789

1012131415

laboratory number

concentration (ng/g, dry basis)

1-methylphenanthrene Tissue XIII (QA07TIS13)

Assigned value = 42.7 ng/g s = 11.3 ng/g 95% CL = 8.7 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

1a

3456789

1012131415

laboratory number

concentration (ng/g dry basis)

1-methylphenanthrene SRM 2977

Certified Value = 39.0 ± 1.9 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
113

0

20

40

60

80

100

120

140

160

180

200

1a

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1012131415

laboratory number

concentration (ng/g, dry basis)

fluoranthene Tissue XIII (QA07TIS13)

Assigned value = 109 ng/g s = 30 ng/g 95% CL = 25 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0

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laboratory number

concentration (ng/g dry basis)

fluoranthene SRM 2977

Certified Value = 38.90 ± 0.63 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
114

0

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1012131415

laboratory number

concentration (ng/g, dry basis)

pyrene Tissue XIII (QA07TIS13)

Assigned value = 197 ng/g s = 42 ng/g 95% CL = 33 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0

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laboratory number

concentration (ng/g dry basis)

pyrene SRM 2977

Certified Value = 77.4 ± 2.1 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
115

0.0

5.0

10.0

15.0

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30.0

35.0

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laboratory number

concentration (ng/g, dry basis)

benz[a]anthracene Tissue XIII (QA07TIS13)

Assigned value = 24.6 ng/g s = 6.1 ng/g 95% CL = 4.7 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

10.0

15.0

20.0

25.0

30.0

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laboratory number

concentration (ng/g dry basis)

benz[a]anthracene SRM 2977

Certified Value = 20.19 ± 0.87 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
116

0

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140

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laboratory number

concentration (ng/g, dry basis)

chrysene Tissue XIII (QA07TIS13)

Assigned value = 71.5 ng/g s = 17.6 ng/g 95% CL = 43.7 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 5

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

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laboratory number

concentration (ng/g dry basis)

chrysene SRM 2977

Reference Value = 42.2 ± 5.5 ng/g (dry basis)

Reported Results: 5 Quantitative Results: 4

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
117

0

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laboratory number

concentration (ng/g, dry basis)

chrysene/triphenylene Tissue XIII (QA07TIS13)

Assigned value = 96.2 ng/g s = 27.5 ng/g 95% CL = 34.1 ng/g (dry basis)

Reported Results: 5 Quantitative Results: 5

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0

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laboratory number

concentration (ng/g dry basis)

chrysene/triphenylene SRM 2977

Target Value = 78.1 ± 8.4 ng/g (dry basis)

Reported Results: 5 Quantitative Results: 5

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
118

0.0

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laboratory number

concentration (ng/g, dry basis)

benzo[b]fluoranthene Tissue XIII (QA07TIS13)

Assigned value = 37.0 ng/g s = 7.1 ng/g 95% CL = 6.0 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

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15.0

20.0

25.0

30.0

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laboratory number

concentration (ng/g dry basis)

benzo[b]fluoranthene SRM 2977

Certified Value = 11.1 ± 0.5 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
119

0.0

5.0

10.0

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laboratory number

concentration (ng/g, dry basis)

benzo[k]fluoranthene Tissue XIII (QA07TIS13)

Assigned value = 15.4 ng/g s = 3.6 ng/g 95% CL = 5.8 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 5

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

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laboratory number

concentration (ng/g dry basis)

benzo[k]fluoranthene SRM 2977

Reference Value = 4.02 ± 0.75 ng/g (dry basis)

Reported Results: 5 Quantitative Results: 4

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
120

0.0

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laboratory number

concentration (ng/g, dry basis)

benzo[j+k]fluoranthene Tissue XIII (QA07TIS13)

Assigned value = 36.0 ng/g s = 7.1 ng/g 95% CL = 17.7 ng/g (dry basis)

Reported Results: 4 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

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laboratory number

concentration (ng/g dry basis)

benzo[j+k]fluoranthene SRM 2977

Target Value = 8.50 ± 0.85 ng/g (dry basis)

Reported Results: 4 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
121

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laboratory number

concentration (ng/g, dry basis)

benzo[e]pyrene Tissue XIII (QA07TIS13)

Assigned value = 53.9 ng/g s = 12.7 ng/g 95% CL = 10.6 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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laboratory number

concentration (ng/g dry basis)

benzo[e]pyrene SRM 2977

Certified Value = 13.29 ± 0.43 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
122

0.0

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laboratory number

concentration (ng/g, dry basis)

benzo[a]pyrene Tissue XIII (QA07TIS13)

Assigned value = 4.94 ng/g s = 1.16 ng/g 95% CL = 1.43 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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laboratory number

concentration (ng/g dry basis)

benzo[a]pyrene SRM 2977

Certified Value = 5.30 ± 0.61 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits

39.3

74.4
123

0.00

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laboratory number

concentration (ng/g, dry basis)

perylene Tissue XIII (QA07TIS13)

Assigned value = 3.51 ng/g s = 0.41 ng/g 95% CL = 0.51 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 7

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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10.0

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laboratory number

concentration (ng/g dry basis)

perylene SRM 2977

Certified Value = 3.69 ± 0.38 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
124

0.0

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laboratory number

concentration (ng/g, dry basis)

indeno[1,2,3-cd]pyrene Tissue XIII (QA07TIS13)

Assigned value = 8.82 ng/g s = 2.53 ng/g 95% CL = 2.65 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

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9.00

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laboratory number

concentration (ng/g dry basis)

indeno[1,2,3-cd]pyrene SRM 2977

Certified Value = 4.76 ± 0.15 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits

39.4
125

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laboratory number

concentration (ng/g, dry basis)

dibenz[a,h]anthracene Tissue XIII (QA07TIS13)

Assigned value = 2.12 ng/g s = 0.28 ng/g 95% CL = 0.69 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 5

Z=-3

0.00

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6.00

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laboratory number

concentration (ng/g dry basis)

dibenz[a,h]anthracene SRM 2977

Reference Value = 1.47 ± 0.33 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 5

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
126

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laboratory number

concentration (ng/g, dry basis)

benzo[ghi]perylene Tissue XIII (QA07TIS13)

Assigned value = 15.7 ng/g s = 4.6 ng/g 95% CL = 4.2 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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laboratory number

concentration (ng/g dry basis)

benzo[ghi]perylene SRM 2977

Certified Value = 9.45 ± 0.37 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
127

0.0

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6.0

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10.0

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laboratory number

concentration (ng/g, dry basis)

alpha-HCH (a-BHC) Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

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18.0

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laboratory number

concentration (ng/g dry basis)

alpha-HCH (a-BHC) SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 7 Quantitative Results: 1

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
128

0.00

1.00

2.00

3.00

4.00

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6.00

7.00

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laboratory number

concentration (ng/g, dry basis)

hexachlorobenzene Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 11 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

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laboratory number

concentration (ng/g dry basis)

hexachlorobenzene SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 10 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
129

0.00

0.50

1.00

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3.00

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laboratory number

concentration (ng/g, dry basis)

gamma-HCH (g-BHC,lindane) Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 12 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.10

0.20

0.30

0.40

0.50

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0.90

1.00

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laboratory number

concentration (ng/g dry basis)

gamma-HCH (g-BHC,lindane) SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 10 Quantitative Results: 0

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
130

0.00

1.00

2.00

3.00

4.00

5.00

6.00

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8.00

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laboratory number

concentration (ng/g, dry basis)

beta-HCH (b-BHC) Tissue XIII (QA07TIS13)

Assigned value = 3.16 ng/g s = 0.11 ng/g 95% CL = 0.28 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

1a

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laboratory number

concentration (ng/g dry basis)

beta-HCH (b-BHC) SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 6 Quantitative Results: 3

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
131

0.0

2.0

4.0

6.0

8.0

10.0

12.0

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laboratory number

concentration (ng/g, dry basis)

heptachlor Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 11 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1a

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laboratory number

concentration (ng/g dry basis)

heptachlor SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
132

0.00

0.50

1.00

1.50

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3.00

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laboratory number

concentration (ng/g, dry basis)

aldrin Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 11 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

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0.90

1.00

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laboratory number

concentration (ng/g dry basis)

aldrin SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 0

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
133

0.00

0.50

1.00

1.50

2.00

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3.50

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laboratory number

concentration (ng/g, dry basis)

heptachlor epoxide Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 11 Quantitative Results: 5

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

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laboratory number

concentration (ng/g dry basis)

heptachlor epoxide SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 3

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
134

0.0

2.0

4.0

6.0

8.0

10.0

12.0

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laboratory number

concentration (ng/g, dry basis)

gamma-chlordane Tissue XIII (QA07TIS13)

Assigned value = 6.21 ng/g s = 1.65 ng/g 95% CL = 1.52 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

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4.00

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laboratory number

concentration (ng/g dry basis)

gamma-chlordane SRM 2977

Reference Value = 2.01 ± 0.39 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 5

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
135

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

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laboratory number

concentration (ng/g, dry basis)

2,4'-DDE Tissue XIII (QA07TIS13)

Assigned value = 2.78 ng/g s = 1.72 ng/g 95% CL = 1.44 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

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5.00

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laboratory number

concentration (ng/g dry basis)

2,4'-DDE SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 4

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
136

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

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laboratory number

concentration (ng/g, dry basis)

endosulfan I Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 10 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

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laboratory number

concentration (ng/g dry basis)

endosulfan I SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 8 Quantitative Results: 1

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
137

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

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laboratory number

concentration (ng/g, dry basis)

cis-chlordane (alpha-chlordane) Tissue XIII (QA07TIS13)

Assigned value = 6.99 ng/g s = 2.50 ng/g 95% CL = 1.92 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

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laboratory number

concentration (ng/g dry basis)

cis-chlordane (alpha-chlordane) SRM 2977

Reference Value = 1.14 ± 0.39 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
138

0.0

2.0

4.0

6.0

8.0

10.0

12.0

1a

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1012131415

laboratory number

concentration (ng/g, dry basis)

trans-nonachlor Tissue XIII (QA07TIS13)

Assigned value = 6.03 ng/g s = 1.33 ng/g 95% CL = 1.11 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

1a

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1012131415

laboratory number

concentration (ng/g dry basis)

trans-nonachlor SRM 2977

Certified Value = 1.25 ± 0.17 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits

16.0
139

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

1a

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1012131415

laboratory number

concentration (ng/g, dry basis)

dieldrin Tissue XIII (QA07TIS13)

Assigned value = 5.28 ng/g s = 1.92 ng/g 95% CL = 1.78 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

9.00

1a

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1012131415

laboratory number

concentration (ng/g dry basis)

dieldrin SRM 2977

Certified Value = 5.55 ± 0.61 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
140

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

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laboratory number

concentration (ng/g, dry basis)

4,4'-DDE Tissue XIII (QA07TIS13)

Assigned value = 23.3 ng/g s = 7.9 ng/g 95% CL = 6.1 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

1a

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1012131415

laboratory number

concentration (ng/g dry basis)

4,4'-DDE SRM 2977

Certified Value = 11.8 ± 1.2 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
141

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

1a

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laboratory number

concentration (ng/g, dry basis)

2,4'-DDD Tissue XIII (QA07TIS13)

Assigned value = 7.69 ng/g s = 1.99 ng/g 95% CL = 1.84 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 7

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

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1012131415

laboratory number

concentration (ng/g dry basis)

2,4'-DDD SRM 2977

Certified Value = 3.15 ± 0.25 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 5

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
142

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

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laboratory number

concentration (ng/g, dry basis)

endrin Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

1a

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1012131415

laboratory number

concentration (ng/g dry basis)

endrin SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 7 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
143

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

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laboratory number

concentration (ng/g, dry basis)

4,4'-DDD Tissue XIII (QA07TIS13)

Assigned value = 17.7 ng/g s = 4.6 ng/g 95% CL = 4.2 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

1.0

2.0

3.0

4.0

5.0

6.0

1a

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1012131415

laboratory number

concentration (ng/g dry basis)

4,4'-DDD SRM 2977

Certified Value = 3.92 ± 0.56 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits

26.0
144

0.00

0.50

1.00

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2.00

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3.00

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laboratory number

concentration (ng/g, dry basis)

2,4'-DDT Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

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1.00

1.50

2.00

2.50

3.00

3.50

4.00

4.50

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laboratory number

concentration (ng/g dry basis)

2,4'-DDT SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 1

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
145

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

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1012131415

laboratory number

concentration (ng/g, dry basis)

cis-nonachlor Tissue XIII (QA07TIS13)

Assigned value = 3.77 ng/g s = 0.92 ng/g 95% CL = 0.97 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 6

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

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1012131415

laboratory number

concentration (ng/g dry basis)

cis-nonachlor SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 7 Quantitative Results: 4

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
146

0.00

0.50

1.00

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2.00

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3.00

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laboratory number

concentration (ng/g, dry basis)

4,4'-DDT Tissue XIII (QA07TIS13)

Assigned value = 1.61 ng/g s = 0.27 ng/g 95% CL = 0.29 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 7

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

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2.00

2.50

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laboratory number

concentration (ng/g dry basis)

4,4'-DDT SRM 2977

Certified Value = 1.32 ± 0.16 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits

15.4

21.0
147

0.0

2.0

4.0

6.0

8.0

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12.0

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laboratory number

concentration (ng/g, dry basis)

mirex Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

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laboratory number

concentration (ng/g dry basis)

mirex SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
148

0.00

0.50

1.00

1.50

2.00

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3.00

3.50

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laboratory number

concentration (ng/g, dry basis)

PCB 8 Tissue XIII (QA07TIS13)

Assigned value = 1.71 ng/g s = 1.05 ng/g 95% CL = 0.97 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

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3.00

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laboratory number

concentration (ng/g dry basis)

PCB 8 SRM 2977

Certified Value = 1.99 ± 0.14 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
149

0.00

1.00

2.00

3.00

4.00

5.00

6.00

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laboratory number

concentration (ng/g, dry basis)

PCB 18 Tissue XIII (QA07TIS13)

Assigned value = 2.68 ng/g s = 1.20 ng/g 95% CL = 0.92 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

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2.00

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3.00

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4.00

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laboratory number

concentration (ng/g dry basis)

PCB 18 SRM 2977

Reference Value = 2.24 ± 0.74 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
150

0.0

2.0

4.0

6.0

8.0

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12.0

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laboratory number

concentration (ng/g, dry basis)

PCB 28 Tissue XIII (QA07TIS13)

Assigned value = 5.90 ng/g s = 1.16 ng/g 95% CL = 1.07 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

9.00

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laboratory number

concentration (ng/g dry basis)

PCB 28 SRM 2977

Certified Value = 5.17 ± 0.36 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
151

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

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laboratory number

concentration (ng/g, dry basis)

PCB 31 Tissue XIII (QA07TIS13)

Assigned value = 3.68 ng/g s = 0.13 ng/g 95% CL = 0.21 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 6

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

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laboratory number

concentration (ng/g dry basis)

PCB 31 SRM 2977

Certified Value = 3.86 ± 0.29 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
152

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

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laboratory number

concentration (ng/g, dry basis)

PCB 44 Tissue XIII (QA07TIS13)

Assigned value = 7.16 ng/g s = 1.01 ng/g 95% CL = 0.85 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

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2.00

2.50

3.00

3.50

4.00

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5.00

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laboratory number

concentration (ng/g dry basis)

PCB 44 SRM 2977

Certified Value = 3.22 ± 0.21 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
153

0.0

2.0

4.0

6.0

8.0

10.0

12.0

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laboratory number

concentration (ng/g, dry basis)

PCB 49 Tissue XIII (QA07TIS13)

Assigned value = 6.40 ng/g s = 1.74 ng/g 95% CL = 1.83 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 7

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

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4.00

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laboratory number

concentration (ng/g dry basis)

PCB 49 SRM 2977

Certified Value = 2.44 ± 0.27 ng/g (dry basis)

Reported Results: 6 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
154

0.0

5.0

10.0

15.0

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25.0

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laboratory number

concentration (ng/g, dry basis)

PCB 52 Tissue XIII (QA07TIS13)

Assigned value = 13.2 ng/g s = 2.3 ng/g 95% CL = 1.8 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

1a

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laboratory number

concentration (ng/g dry basis)

PCB 52 SRM 2977

Certified Value = 8.02 ± 0.56 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
155

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

1a

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laboratory number

concentration (ng/g, dry basis)

PCB 66 Tissue XIII (QA07TIS13)

Assigned value = 10.8 ng/g s = 1.4 ng/g 95% CL = 1.1 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

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laboratory number

concentration (ng/g dry basis)

PCB 66 SRM 2977

Certified Value = 3.55 ± 0.18 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
156

0.0

5.0

10.0

15.0

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25.0

1a

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laboratory number

concentration (ng/g, dry basis)

PCB 95 Tissue XIII (QA07TIS13)

Assigned value = 12.5 ng/g s = 2.2 ng/g 95% CL = 2.3 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 7

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

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laboratory number

concentration (ng/g dry basis)

PCB 95 SRM 2977

Certified Value = 5.17 ± 0.53 ng/g (dry basis)

Reported Results: 6 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
157

0.0

5.0

10.0

15.0

20.0

25.0

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laboratory number

concentration (ng/g, dry basis)

PCB 99 Tissue XIII (QA07TIS13)

Assigned value = 12.7 ng/g s = 2.3 ng/g 95% CL = 2.2 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

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laboratory number

concentration (ng/g dry basis)

PCB 99 SRM 2977

Reference Value = 3.0 ± 1.2 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
158

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

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laboratory number

concentration (ng/g, dry basis)

PCB 101 Tissue XIII (QA07TIS13)

Assigned value = 25.1 ng/g s = 3.0 ng/g 95% CL = 2.3 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

1a

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laboratory number

concentration (ng/g dry basis)

PCB 101 SRM 2977

Certified Value = 10.6 ± 1.2 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
159

0.0

2.0

4.0

6.0

8.0

10.0

12.0

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laboratory number

concentration (ng/g, dry basis)

PCB 105 Tissue XIII (QA07TIS13)

Assigned value = 6.13 ng/g s = 1.49 ng/g 95% CL = 1.07 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

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laboratory number

concentration (ng/g dry basis)

PCB 105 SRM 2977

Reference Value = 2.93 ± 0.46 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
160

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

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45.0

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laboratory number

concentration (ng/g, dry basis)

PCB 118 Tissue XIII (QA07TIS13)

Assigned value = 22.0 ng/g s = 3.8 ng/g 95% CL = 2.9 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

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laboratory number

concentration (ng/g dry basis)

PCB 118 SRM 2977

Certified Value = 10.0 ± 0.4 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
161

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

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laboratory number

concentration (ng/g, dry basis)

PCB 128 Tissue XIII (QA07TIS13)

Assigned value = 3.86 ng/g s = 1.00 ng/g 95% CL = 0.77 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

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2.00

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laboratory number

concentration (ng/g dry basis)

PCB 128 SRM 2977

Certified Value = 2.38 ± 0.28 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
162

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

1a

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1012131415

laboratory number

concentration (ng/g, dry basis)

PCB 138 Tissue XIII (QA07TIS13)

Assigned value = 20.6 ng/g s = 6.5 ng/g 95% CL = 10.3 ng/g (dry basis)

Reported Results: 6 Quantitative Results: 6

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

1a

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1012131415

laboratory number

concentration (ng/g dry basis)

PCB 138 SRM 2977

Certified Value = 7.94 ± 0.63 ng/g (dry basis)

Reported Results: 6 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
163

0.0

10.0

20.0

30.0

40.0

50.0

60.0

1a

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laboratory number

concentration (ng/g, dry basis)

PCB 138/163 Tissue XIII (QA07TIS13)

Assigned value = 29.0 ng/g s = 5.4 ng/g 95% CL = 8.5 ng/g (dry basis)

Reported Results: 5 Quantitative Results: 5

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

1a

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1012131415

laboratory number

concentration (ng/g dry basis)

PCB 138/163 SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 4 Quantitative Results: 4

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
164

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

1a

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laboratory number

concentration (ng/g, dry basis)

PCB 149 Tissue XIII (QA07TIS13)

Assigned value = 17.7 ng/g s = 3.7 ng/g 95% CL = 3.9 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1a

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1012131415

laboratory number

concentration (ng/g dry basis)

PCB 149 SRM 2977

Certified Value = 8.95 ± 0.67 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
165

0.0

10.0

20.0

30.0

40.0

50.0

60.0

1a

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laboratory number

concentration (ng/g, dry basis)

PCB 153 Tissue XIII (QA07TIS13)

Assigned value = 29.6 ng/g s = 2.6 ng/g 95% CL = 2.5 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

10.0

15.0

20.0

25.0

1a

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1012131415

laboratory number

concentration (ng/g dry basis)

PCB 153 SRM 2977

Certified Value = 14.1 ± 1.3 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
166

0.0

10.0

20.0

30.0

40.0

50.0

60.0

1a

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laboratory number

concentration (ng/g, dry basis)

PCB 153/132 Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 2 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

1a

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1012131415

laboratory number

concentration (ng/g dry basis)

PCB 153/132 SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 2 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
167

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

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laboratory number

concentration (ng/g, dry basis)

PCB 156 Tissue XIII (QA07TIS13)

Assigned value = 1.75 ng/g s = 0.58 ng/g 95% CL = 0.60 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 7

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

1a

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laboratory number

concentration (ng/g dry basis)

PCB 156 SRM 2977

Certified Value = 0.959 ± 0.036 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
168

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

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laboratory number

concentration (ng/g, dry basis)

PCB 170 Tissue XIII (QA07TIS13)

Assigned value = 1.95 ng/g s = 0.34 ng/g 95% CL = 0.26 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

4.50

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laboratory number

concentration (ng/g dry basis)

PCB 170 SRM 2977

Certified Value = 2.74 ± 0.25 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
169

0.00

2.00

4.00

6.00

8.00

10.00

12.00

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concentration (ng/g, dry basis)

PCB 180 Tissue XIII (QA07TIS13)

Assigned value = 5.76 ng/g s = 1.22 ng/g 95% CL = 1.02 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

1a

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laboratory number

concentration (ng/g dry basis)

PCB 180 SRM 2977

Certified Value = 6.32 ± 0.72 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
170

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

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laboratory number

concentration (ng/g, dry basis)

PCB 187 Tissue XIII (QA07TIS13)

Assigned value = 10.9 ng/g s = 1.7 ng/g 95% CL = 1.3 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

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laboratory number

concentration (ng/g dry basis)

PCB 187 SRM 2977

Certified Value = 4.47 ± 0.32 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
171

0.00

0.20

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1.00

1.20

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concentration (ng/g, dry basis)

PCB 194 Tissue XIII (QA07TIS13)

Assigned value = 0.567 ng/g s = 0.189 ng/g 95% CL = 0.199 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 7

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

1a

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laboratory number

concentration (ng/g dry basis)

PCB 194 SRM 2977

Certified Value = 0.881 ± 0.032 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
172

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

0.080

0.090

1a

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laboratory number

concentration (ng/g, dry basis)

PCB 195 Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 11 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.000

0.050

0.100

0.150

0.200

0.250

0.300

0.350

1a

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laboratory number

concentration (ng/g dry basis)

PCB 195 SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 10 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
173

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

0.080

1a

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laboratory number

concentration (ng/g, dry basis)

PCB 206 Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 11 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

0.080

1a

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1012131415

laboratory number

concentration (ng/g dry basis)

PCB 206 SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 10 Quantitative Results: 1

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
174

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

0.080

1a

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laboratory number

concentration (ng/g, dry basis)

PCB 209 Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 11 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

1a

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laboratory number

concentration (ng/g dry basis)

PCB 209 SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 10 Quantitative Results: 0

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
175

0.00

0.50

1.00

1.50

2.00

2.50

3.00

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4.00

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concentration (ng/g, dry basis)

BDE 28 Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 4 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

4.50

5.00

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laboratory number

concentration (ng/g dry basis)

BDE 28 SRM 2977

Target Value = no target ng/g (dry basis)

Reported Results: 3 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
176

0.0

10.0

20.0

30.0

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60.0

70.0

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concentration (ng/g, dry basis)

BDE 47 Tissue XIII (QA07TIS13)

Assigned value = 36.8 ng/g s = 4.5 ng/g 95% CL = 11.2 ng/g (dry basis)

Reported Results: 4 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

1a

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laboratory number

concentration (ng/g dry basis)

BDE 47 SRM 2977

Certified Value = 36.5 ± 4.0 ng/g (dry basis)

Reported Results: 3 Quantitative Results: 3

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
177

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concentration (ng/g, dry basis)

BDE 66 Tissue XIII (QA07TIS13)

Assigned value = no target ng/g (dry basis)

Reported Results: 4 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.20

0.40

0.60

0.80

1.00

1.20

1a

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laboratory number

concentration (ng/g dry basis)

BDE 66 SRM 2977

Certified Value = 0.453 ± 0.046 ng/g (dry basis)

Reported Results: 3 Quantitative Results: 1

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
178

0.0

2.0

4.0

6.0

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14.0

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laboratory number

concentration (ng/g, dry basis)

BDE 99 Tissue XIII (QA07TIS13)

Assigned value = 7.16 ng/g s = 1.42 ng/g 95% CL = 3.53 ng/g (dry basis)

Reported Results: 4 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

9.00

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laboratory number

concentration (ng/g dry basis)

BDE 99 SRM 2977

Reference Value = 4.68 ± 0.92 ng/g (dry basis)

Reported Results: 3 Quantitative Results: 3

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
179

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

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concentration (ng/g, dry basis)

BDE 100 Tissue XIII (QA07TIS13)

Assigned value = 3.73 ng/g s = 0.21 ng/g 95% CL = 0.51 ng/g (dry basis)

Reported Results: 4 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed line: z=±2 

(50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

1a

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laboratory number

concentration (ng/g dry basis)

BDE 100 SRM 2977

Reference Value = 1.82 ± 0.64 ng/g (dry basis)

Reported Results: 3 Quantitative Results: 3

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% from 95% 

confidence limits
180

Appendix H: Charts of Marine Sediment XIV and SRM 1944 Results 

by Analyte

See Tables 10 through 17 for results reported as <number, detection limit, etc. 

Charts for analytes with few reported numerical results are not included in this appendix.

Note: The numbers added to the charts are the values reported that are off the scale of the chart.

For Marine Sediment XIV plots:

Solid line: exercise assigned value

Dotted line: z = ± 1, i. e., 25 % from assigned value

Dotted/dashed line: z = ± 2, i. e., 50 % from assigned value

Dashed line: z = ± 3, i. e., 75 % from assigned value

For SRM 1944 plots:

Solid line: material certified concentration or target value (see caption of each plot)

Dotted line: 95 % confidence interval (CI)

Dashed line: 30 % from 95 % confidence interval (CI)
181

0

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400

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700

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10111213

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15

laboratory number

concentration (ng/g, dry basis)

naphthalene Sediment XIV (QA07SED14)

Assigned value = 329 ng/g s = 190 ng/g 95% CL = 105 ng/g (dry basis)

Reported Results: 15 Quantitative Results: 15

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

500

1000

1500

2000

2500

3000

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15

laboratory number

concentration (ng/g dry basis)

naphthalene SRM 1944

Certified Value = 1650 ± 310 ng/g (dry basis)

Reported Results: 13 Quantitative Results: 13

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
182

0

50

100

150

200

250

300

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400

450

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15

laboratory number

concentration (ng/g, dry basis)

2-methylnaphthalene Sediment XIV (QA07SED14)

Assigned value = 217 ng/g s = 129 ng/g 95% CL = 74 ng/g (dry basis)

Reported Results: 15 Quantitative Results: 14

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

200

400

600

800

1000

1200

1400

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15

laboratory number

concentration (ng/g dry basis)

2-methylnaphthalene SRM 1944

Reference Value = 950 ± 50 ng/g (dry basis)

Reported Results: 13 Quantitative Results: 13

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
183

0

50

100

150

200

250

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15

laboratory number

concentration (ng/g, dry basis)

1-methylnaphthalene Sediment XIV (QA07SED14)

Assigned value = 103 ng/g s = 52 ng/g 95% CL = 30 ng/g (dry basis)

Reported Results: 15 Quantitative Results: 14

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

100

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300

400

500

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700

800

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10111213

14-114-2

15

laboratory number

concentration (ng/g dry basis)

1-methylnaphthalene SRM 1944

Reference Value = 520 ± 30 ng/g (dry basis)

Reported Results: 13 Quantitative Results: 13

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
184

0

50

100

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200

250

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15

laboratory number

concentration (ng/g, dry basis)

biphenyl Sediment XIV (QA07SED14)

Assigned value = 100 ng/g s = 52 ng/g 95% CL = 37 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

100

200

300

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500

600

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15

laboratory number

concentration (ng/g dry basis)

biphenyl SRM 1944

Reference Value = 320 ± 70 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
185

0

50

100

150

200

250

300

350

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15

laboratory number

concentration (ng/g, dry basis)

2,6-dimethylnaphthalene Sediment XIV (QA07SED14)

Assigned value = 177 ng/g s = 74 ng/g 95% CL = 50 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

100

200

300

400

500

600

700

800

900

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15

laboratory number

concentration (ng/g dry basis)

2,6-dimethylnaphthalene SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
186

0

100

200

300

400

500

600

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15

laboratory number

concentration (ng/g, dry basis)

acenaphthylene Sediment XIV (QA07SED14)

Assigned value = 184 ng/g s = 119 ng/g 95% CL = 66 ng/g (dry basis)

Reported Results: 15 Quantitative Results: 15

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

200

400

600

800

1000

1200

1400

1600

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laboratory number

concentration (ng/g dry basis)

acenaphthylene SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 13 Quantitative Results: 13

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
187

0

10

20

30

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50

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70

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100

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laboratory number

concentration (ng/g, dry basis)

acenaphthene Sediment XIV (QA07SED14)

Assigned value = 53.4 ng/g s = 21.3 ng/g 95% CL = 12.3 ng/g (dry basis)

Reported Results: 15 Quantitative Results: 14

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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concentration (ng/g dry basis)

acenaphthene SRM 1944

Reference Value = 570 ± 30 ng/g (dry basis)

Reported Results: 13 Quantitative Results: 13

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
188

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concentration (ng/g, dry basis)

1,6,7-trimethylnaphthalene Sediment XIV (QA07SED14)

Assigned value = 146 ng/g s = 66 ng/g 95% CL = 61 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 7

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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concentration (ng/g dry basis)

1,6,7-trimethylnaphthalene SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 6 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
189

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laboratory number

concentration (ng/g, dry basis)

fluorene Sediment XIV (QA07SED14)

Assigned value = 85.1 ng/g s = 23.8 ng/g 95% CL = 14.4 ng/g (dry basis)

Reported Results: 16 Quantitative Results: 16

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

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laboratory number

concentration (ng/g dry basis)

fluorene SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 14 Quantitative Results: 14

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
190

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laboratory number

concentration (ng/g, dry basis)

phenanthrene Sediment XIV (QA07SED14)

Assigned value = 1022 ng/g s = 177 ng/g 95% CL = 107 ng/g (dry basis)

Reported Results: 16 Quantitative Results: 16

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

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laboratory number

concentration (ng/g dry basis)

phenanthrene SRM 1944

Certified Value = 5270 ± 220 ng/g (dry basis)

Reported Results: 14 Quantitative Results: 14

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
191

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laboratory number

concentration (ng/g, dry basis)

anthracene Sediment XIV (QA07SED14)

Assigned value = 302 ng/g s = 170 ng/g 95% CL = 103 ng/g (dry basis)

Reported Results: 16 Quantitative Results: 16

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

anthracene SRM 1944

Certified Value = 1770 ± 330 ng/g (dry basis)

Reported Results: 14 Quantitative Results: 14

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
192

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laboratory number

concentration (ng/g, dry basis)

1-methylphenanthrene Sediment XIV (QA07SED14)

Assigned value = 303 ng/g s = 68 ng/g 95% CL = 49 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

1-methylphenanthrene SRM 1944

Reference Value = 1700 ± 100 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
193

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laboratory number

concentration (ng/g, dry basis)

fluoranthene Sediment XIV (QA07SED14)

Assigned value = 3238 ng/g s = 532 ng/g 95% CL = 321 ng/g (dry basis)

Reported Results: 16 Quantitative Results: 16

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

fluoranthene SRM 1944

Certified Value = 8920 ± 320 ng/g (dry basis)

Reported Results: 14 Quantitative Results: 14

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
194

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laboratory number

concentration (ng/g, dry basis)

pyrene Sediment XIV (QA07SED14)

Assigned value = 2870 ng/g s = 377 ng/g 95% CL = 228 ng/g (dry basis)

Reported Results: 16 Quantitative Results: 16

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

pyrene SRM 1944

Certified Value = 9700 ± 420 ng/g (dry basis)

Reported Results: 14 Quantitative Results: 14

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
195

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laboratory number

concentration (ng/g, dry basis)

benz[a]anthracene Sediment XIV (QA07SED14)

Assigned value = 1113 ng/g s = 149 ng/g 95% CL = 90 ng/g (dry basis)

Reported Results: 16 Quantitative Results: 16

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

benz[a]anthracene SRM 1944

Certified Value = 4720 ± 110 ng/g (dry basis)

Reported Results: 14 Quantitative Results: 14

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
196

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laboratory number

concentration (ng/g, dry basis)

chrysene Sediment XIV (QA07SED14)

Assigned value = 1680 ng/g s = 231 ng/g 95% CL = 178 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

chrysene SRM 1944

Certified Value = 4860 ± 100 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
197

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laboratory number

concentration (ng/g, dry basis)

chrysene/triphenylene Sediment XIV (QA07SED14)

Assigned value = 2050 ng/g s = 156 ng/g 95% CL = 194 ng/g (dry basis)

Reported Results: 5 Quantitative Results: 5

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

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laboratory number

concentration (ng/g dry basis)

chrysene/triphenylene SRM 1944

Target Value = 5900 ± 370 ng/g (dry basis)

Reported Results: 4 Quantitative Results: 4

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
198

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laboratory number

concentration (ng/g, dry basis)

benzo[b]fluoranthene Sediment XIV (QA07SED14)

Assigned value = 1848 ng/g s = 539 ng/g 95% CL = 342 ng/g (dry basis)

Reported Results: 14 Quantitative Results: 14

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

benzo[b]fluoranthene SRM 1944

Certified Value = 3870 ± 420 ng/g (dry basis)

Reported Results: 13 Quantitative Results: 13

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
199

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laboratory number

concentration (ng/g, dry basis)

benzo[k]fluoranthene Sediment XIV (QA07SED14)

Assigned value = 929 ng/g s = 280 ng/g 95% CL = 259 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

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laboratory number

concentration (ng/g dry basis)

benzo[k]fluoranthene SRM 1944

Certified Value = 2300 ± 200 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
200

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laboratory number

concentration (ng/g, dry basis)

benzo[j+k]fluoranthene Sediment XIV (QA07SED14)

Assigned value = 1463 ng/g s = 323 ng/g 95% CL = 514 ng/g (dry basis)

Reported Results: 4 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

benzo[j+k]fluoranthene SRM 1944

Target Value = 4390 ± 640 ng/g (dry basis)

Reported Results: 4 Quantitative Results: 4

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
201

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laboratory number

concentration (ng/g, dry basis)

benzo[e]pyrene Sediment XIV (QA07SED14)

Assigned value = 1454 ng/g s = 183 ng/g 95% CL = 131 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

benzo[e]pyrene SRM 1944

Certified Value = 3280 ± 110 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
202

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laboratory number

concentration (ng/g, dry basis)

benzo[a]pyrene Sediment XIV (QA07SED14)

Assigned value = 870 ng/g s = 121 ng/g 95% CL = 73 ng/g (dry basis)

Reported Results: 16 Quantitative Results: 16

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

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laboratory number

concentration (ng/g dry basis)

benzo[a]pyrene SRM 1944

Certified Value = 4300 ± 130 ng/g (dry basis)

Reported Results: 14 Quantitative Results: 14

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
203

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laboratory number

concentration (ng/g, dry basis)

perylene Sediment XIV (QA07SED14)

Assigned value = 385 ng/g s = 43 ng/g 95% CL = 31 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

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laboratory number

concentration (ng/g dry basis)

perylene SRM 1944

Certified Value = 1170 ± 240 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
204

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laboratory number

concentration (ng/g, dry basis)

indeno[1,2,3-cd]pyrene Sediment XIV (QA07SED14)

Assigned value = 1011 ng/g s = 218 ng/g 95% CL = 132 ng/g (dry basis)

Reported Results: 16 Quantitative Results: 16

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

indeno[1,2,3-cd]pyrene SRM 1944

Certified Value = 2780 ± 100 ng/g (dry basis)

Reported Results: 14 Quantitative Results: 14

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
205

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laboratory number

concentration (ng/g, dry basis)

dibenz[a,h]anthracene Sediment XIV (QA07SED14)

Assigned value = 271 ng/g s = 61 ng/g 95% CL = 41 ng/g (dry basis)

Reported Results: 15 Quantitative Results: 14

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

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laboratory number

concentration (ng/g dry basis)

dibenz[a,h]anthracene SRM 1944

Certified Value = 424 ± 69 ng/g (dry basis)

Reported Results: 13 Quantitative Results: 12

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
206

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laboratory number

concentration (ng/g, dry basis)

benzo[ghi]perylene Sediment XIV (QA07SED14)

Assigned value = 1046 ng/g s = 171 ng/g 95% CL = 103 ng/g (dry basis)

Reported Results: 16 Quantitative Results: 16

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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concentration (ng/g dry basis)

benzo[ghi]perylene SRM 1944

Certified Value = 2840 ± 100 ng/g (dry basis)

Reported Results: 14 Quantitative Results: 14

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
207

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concentration (ng/g, dry basis)

alpha-HCH (a-BHC) Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 11 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.000

0.050

0.100

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0.250

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concentration (ng/g dry basis)

alpha-HCH (a-BHC) SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
208

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

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laboratory number

concentration (ng/g, dry basis)

hexachlorobenzene Sediment XIV (QA07SED14)

Assigned value = 4.92 ng/g s = 0.97 ng/g 95% CL = 0.65 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

9.00

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laboratory number

concentration (ng/g dry basis)

hexachlorobenzene SRM 1944

Certified Value = 6.03 ± 0.35 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
209

0.00

0.50

1.00

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2.50

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laboratory number

concentration (ng/g, dry basis)

gamma-HCH (g-BHC,lindane) Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 14 Quantitative Results: 6

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

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laboratory number

concentration (ng/g dry basis)

gamma-HCH (g-BHC,lindane) SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 12 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits

17.1

29.0
210

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

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5.00

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concentration (ng/g, dry basis)

beta-HCH (b-BHC) Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 10 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

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concentration (ng/g dry basis)

beta-HCH (b-BHC) SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 8 Quantitative Results: 5

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
211

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

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laboratory number

concentration (ng/g, dry basis)

heptachlor Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 13 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

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laboratory number

concentration (ng/g dry basis)

heptachlor SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 11 Quantitative Results: 4

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
212

0.000

0.100

0.200

0.300

0.400

0.500

0.600

0.700

0.800

0.900

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laboratory number

concentration (ng/g, dry basis)

aldrin Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 13 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

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laboratory number

concentration (ng/g dry basis)

aldrin SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 11 Quantitative Results: 3

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
213

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

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laboratory number

concentration (ng/g, dry basis)

heptachlor epoxide Sediment XIV (QA07SED14)

Assigned value = 0.796 ng/g s = 0.079 ng/g 95% CL = 0.126 ng/g (dry basis)

Reported Results: 13 Quantitative Results: 6

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

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laboratory number

concentration (ng/g dry basis)

heptachlor epoxide SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 11 Quantitative Results: 5

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits

14.5
214

0.00

0.50

1.00

1.50

2.00

2.50

3.00

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laboratory number

concentration (ng/g, dry basis)

oxychlordane Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 8 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

4.50

5.00

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laboratory number

concentration (ng/g dry basis)

oxychlordane SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 7 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
215

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

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laboratory number

concentration (ng/g, dry basis)

gamma-chlordane Sediment XIV (QA07SED14)

Assigned value = 30.3 ng/g s = 8.1 ng/g 95% CL = 7.5 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

10.0

15.0

20.0

25.0

30.0

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laboratory number

concentration (ng/g dry basis)

gamma-chlordane SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 10 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
216

0

20

40

60

80

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120

140

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laboratory number

concentration (ng/g, dry basis)

2,4'-DDE Sediment XIV (QA07SED14)

Assigned value = 42.3 ng/g s = 10.0 ng/g 95% CL = 7.6 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

10.0

15.0

20.0

25.0

30.0

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laboratory number

concentration (ng/g dry basis)

2,4'-DDE SRM 1944

Reference Value = 19.0 ± 3.0 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
217

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

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laboratory number

concentration (ng/g, dry basis)

cis-chlordane (alpha-chlordane) Sediment XIV (QA07SED14)

Assigned value = 25.8 ng/g s = 7.7 ng/g 95% CL = 5.5 ng/g (dry basis)

Reported Results: 14 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

10.0

15.0

20.0

25.0

30.0

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laboratory number

concentration (ng/g dry basis)

cis-chlordane (alpha-chlordane) SRM 1944

Certified Value = 16.51 ± 0.83 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
218

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

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laboratory number

concentration (ng/g, dry basis)

trans-nonachlor Sediment XIV (QA07SED14)

Assigned value = 17.0 ng/g s = 3.2 ng/g 95% CL = 2.7 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

10.0

15.0

20.0

25.0

30.0

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laboratory number

concentration (ng/g dry basis)

trans-nonachlor SRM 1944

Certified Value = 8.20 ± 0.51 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
219

0.0

2.0

4.0

6.0

8.0

10.0

12.0

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laboratory number

concentration (ng/g, dry basis)

dieldrin Sediment XIV (QA07SED14)

Assigned value = 6.45 ng/g s = 2.77 ng/g 95% CL = 2.56 ng/g (dry basis)

Reported Results: 13 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

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laboratory number

concentration (ng/g dry basis)

dieldrin SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 11 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits

41.7
220

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350

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laboratory number

concentration (ng/g, dry basis)

4,4'-DDE Sediment XIV (QA07SED14)

Assigned value = 169 ng/g s = 30 ng/g 95% CL = 20 ng/g (dry basis)

Reported Results: 14 Quantitative Results: 14

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

20

40

60

80

100

120

140

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laboratory number

concentration (ng/g dry basis)

4,4'-DDE SRM 1944

Reference Value = 86 ± 12 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
221

0

20

40

60

80

100

120

140

160

180

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laboratory number

concentration (ng/g, dry basis)

2,4'-DDD Sediment XIV (QA07SED14)

Assigned value = 90.4 ng/g s = 16.0 ng/g 95% CL = 13.3 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

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laboratory number

concentration (ng/g dry basis)

2,4'-DDD SRM 1944

Reference Value = 38 ± 8 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
222

0.0

5.0

10.0

15.0

20.0

25.0

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laboratory number

concentration (ng/g, dry basis)

endrin Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 10 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

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laboratory number

concentration (ng/g dry basis)

endrin SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 4

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
223

0.00

0.50

1.00

1.50

2.00

2.50

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laboratory number

concentration (ng/g, dry basis)

endosulfan II Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 10 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

10.0

15.0

20.0

25.0

30.0

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laboratory number

concentration (ng/g dry basis)

endosulfan II SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 8 Quantitative Results: 5

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
224

0

50

100

150

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450

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laboratory number

concentration (ng/g, dry basis)

4,4'-DDD Sediment XIV (QA07SED14)

Assigned value = 241 ng/g s = 56 ng/g 95% CL = 43 ng/g (dry basis)

Reported Results: 14 Quantitative Results: 13

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

50

100

150

200

250

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laboratory number

concentration (ng/g dry basis)

4,4'-DDD SRM 1944

Reference Value = 108 ± 16 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
225

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

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laboratory number

concentration (ng/g, dry basis)

2,4'-DDT Sediment XIV (QA07SED14)

Assigned value = 6.61 ng/g s = 2.67 ng/g 95% CL = 2.80 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 6

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

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laboratory number

concentration (ng/g dry basis)

2,4'-DDT SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
226

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

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laboratory number

concentration (ng/g, dry basis)

cis-nonachlor Sediment XIV (QA07SED14)

Assigned value = 6.61 ng/g s = 1.46 ng/g 95% CL = 1.54 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 6

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

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laboratory number

concentration (ng/g dry basis)

cis-nonachlor SRM 1944

Reference Value = 3.7 ± 0.7 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
227

0

200

400

600

800

1000

1200

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laboratory number

concentration (ng/g, dry basis)

4,4'-DDT Sediment XIV (QA07SED14)

Assigned value = 485 ng/g s = 135 ng/g 95% CL = 113 ng/g (dry basis)

Reported Results: 14 Quantitative Results: 13

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

50

100

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200

250

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laboratory number

concentration (ng/g dry basis)

4,4'-DDT SRM 1944

Certified Value = 119 ± 11 ng/g (dry basis)

Reported Results: 13 Quantitative Results: 12

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
228

0.0

5.0

10.0

15.0

20.0

25.0

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laboratory number

concentration (ng/g, dry basis)

mirex Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 11 Quantitative Results: 6

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

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laboratory number

concentration (ng/g dry basis)

mirex SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 9 Quantitative Results: 6

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits

59.5

94.1
229

0.00

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2.00

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3.00

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laboratory number

concentration (ng/g, dry basis)

endosulfan sulfate Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 7 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

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laboratory number

concentration (ng/g dry basis)

endosulfan sulfate SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 7 Quantitative Results: 3

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
230

0.0

5.0

10.0

15.0

20.0

25.0

30.0

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laboratory number

concentration (ng/g, dry basis)

PCB 8 Sediment XIV (QA07SED14)

Assigned value = 14.1 ng/g s = 3.0 ng/g 95% CL = 2.3 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

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laboratory number

concentration (ng/g dry basis)

PCB 8 SRM 1944

Certified Value = 22.3 ± 2.3 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
231

0.0

10.0

20.0

30.0

40.0

50.0

60.0

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laboratory number

concentration (ng/g, dry basis)

PCB 18 Sediment XIV (QA07SED14)

Assigned value = 29.1 ng/g s = 8.1 ng/g 95% CL = 5.5 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

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laboratory number

concentration (ng/g dry basis)

PCB 18 SRM 1944

Certified Value = 51.0 ± 2.6 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
232

0

20

40

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140

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laboratory number

concentration (ng/g, dry basis)

PCB 28 Sediment XIV (QA07SED14)

Assigned value = 72.9 ng/g s = 13.5 ng/g 95% CL = 9.6 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

20

40

60

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100

120

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laboratory number

concentration (ng/g dry basis)

PCB 28 SRM 1944

Certified Value = 80.8 ± 2.7 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
233

0

10

20

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100

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laboratory number

concentration (ng/g, dry basis)

PCB 31 Sediment XIV (QA07SED14)

Assigned value = 53.3 ng/g s = 15.3 ng/g 95% CL = 14.1 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

20

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60

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100

120

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laboratory number

concentration (ng/g dry basis)

PCB 31 SRM 1944

Certified Value = 78.7 ± 1.6 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
234

0

20

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60

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120

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laboratory number

concentration (ng/g, dry basis)

PCB 44 Sediment XIV (QA07SED14)

Assigned value = 55.6 ng/g s = 11.2 ng/g 95% CL = 8.6 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

10

20

30

40

50

60

70

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90

100

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laboratory number

concentration (ng/g dry basis)

PCB 44 SRM 1944

Certified Value = 60.2 ± 2.0 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
235

0

10

20

30

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laboratory number

concentration (ng/g, dry basis)

PCB 49 Sediment XIV (QA07SED14)

Assigned value = 44.1 ng/g s = 5.1 ng/g 95% CL = 5.3 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

10

20

30

40

50

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70

80

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laboratory number

concentration (ng/g dry basis)

PCB 49 SRM 1944

Certified Value = 53.0 ± 1.7 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
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concentration (ng/g, dry basis)

PCB 52 Sediment XIV (QA07SED14)

Assigned value = 69.2 ng/g s = 10.0 ng/g 95% CL = 7.7 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

PCB 52 SRM 1944

Certified Value = 79.4 ± 2.0 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
237

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concentration (ng/g, dry basis)

PCB 66 Sediment XIV (QA07SED14)

Assigned value = 59.6 ng/g s = 10.7 ng/g 95% CL = 7.7 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

PCB 66 SRM 1944

Certified Value = 71.9 ± 4.3 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
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concentration (ng/g, dry basis)

PCB 95 Sediment XIV (QA07SED14)

Assigned value = 43.1 ng/g s = 5.2 ng/g 95% CL = 4.8 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

PCB 95 SRM 1944

Certified Value = 65.0 ± 8.9 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
239

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concentration (ng/g, dry basis)

PCB 99 Sediment XIV (QA07SED14)

Assigned value = 31.4 ng/g s = 2.4 ng/g 95% CL = 2.2 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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laboratory number

concentration (ng/g dry basis)

PCB 99 SRM 1944

Certified Value = 37.5 ± 2.4 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
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concentration (ng/g, dry basis)

PCB 101 Sediment XIV (QA07SED14)

Assigned value = 62.5 ng/g s = 14.6 ng/g 95% CL = 10.4 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

PCB 101 SRM 1944

Certified Value = 73.4 ± 2.5 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
241

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concentration (ng/g, dry basis)

PCB 105 Sediment XIV (QA07SED14)

Assigned value = 21.6 ng/g s = 4.8 ng/g 95% CL = 3.5 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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concentration (ng/g dry basis)

PCB 105 SRM 1944

Certified Value = 24.5 ± 1.1 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
242

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concentration (ng/g, dry basis)

PCB 118 Sediment XIV (QA07SED14)

Assigned value = 49.0 ng/g s = 10.6 ng/g 95% CL = 7.5 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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concentration (ng/g dry basis)

PCB 118 SRM 1944

Certified Value = 58.0 ± 4.3 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
243

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concentration (ng/g, dry basis)

PCB 128 Sediment XIV (QA07SED14)

Assigned value = 9.06 ng/g s = 1.94 ng/g 95% CL = 1.38 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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laboratory number

concentration (ng/g dry basis)

PCB 128 SRM 1944

Certified Value = 8.47 ± 0.28 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
244

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concentration (ng/g, dry basis)

PCB 138 Sediment XIV (QA07SED14)

Assigned value = 62.8 ng/g s = 21.7 ng/g 95% CL = 26.9 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 7

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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laboratory number

concentration (ng/g dry basis)

PCB 138 SRM 1944

Certified Value = 65.1 ± 3.0 ng/g (dry basis)

Reported Results: 7 Quantitative Results: 7

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
245

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concentration (ng/g, dry basis)

PCB 138/163 Sediment XIV (QA07SED14)

Assigned value = 66.1 ng/g s = 10.3 ng/g 95% CL = 16.5 ng/g (dry basis)

Reported Results: 5 Quantitative Results: 5

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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concentration (ng/g dry basis)

PCB 138/163 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 4 Quantitative Results: 4

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
246

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concentration (ng/g, dry basis)

PCB 149 Sediment XIV (QA07SED14)

Assigned value = 47.6 ng/g s = 6.9 ng/g 95% CL = 5.7 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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concentration (ng/g dry basis)

PCB 149 SRM 1944

Certified Value = 49.7 ± 1.2 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
247

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concentration (ng/g, dry basis)

PCB 153 Sediment XIV (QA07SED14)

Assigned value = 64.5 ng/g s = 15.6 ng/g 95% CL = 13.1 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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concentration (ng/g dry basis)

PCB 153 SRM 1944

Certified Value = 74.0 ± 2.9 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
248

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concentration (ng/g, dry basis)

PCB 153/132 Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 2 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

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concentration (ng/g dry basis)

PCB 153/132 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 2 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
249

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concentration (ng/g, dry basis)

PCB 156 Sediment XIV (QA07SED14)

Assigned value = 5.69 ng/g s = 1.36 ng/g 95% CL = 1.14 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 8

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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7.0

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concentration (ng/g dry basis)

PCB 156 SRM 1944

Certified Value = 6.52 ± 0.66 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
250

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concentration (ng/g, dry basis)

PCB 170 Sediment XIV (QA07SED14)

Assigned value = 19.8 ng/g s = 3.8 ng/g 95% CL = 2.7 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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concentration (ng/g dry basis)

PCB 170 SRM 1944

Certified Value = 22.6 ± 1.4 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
251

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concentration (ng/g, dry basis)

PCB 180 Sediment XIV (QA07SED14)

Assigned value = 45.5 ng/g s = 7.7 ng/g 95% CL = 6.4 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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concentration (ng/g dry basis)

PCB 180 SRM 1944

Certified Value = 44.3 ± 1.2 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
252

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concentration (ng/g, dry basis)

PCB 180/193 Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 2 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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concentration (ng/g dry basis)

PCB 180/193 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 2 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
253

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concentration (ng/g, dry basis)

PCB 187 Sediment XIV (QA07SED14)

Assigned value = 27.9 ng/g s = 4.3 ng/g 95% CL = 3.1 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 12

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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concentration (ng/g dry basis)

PCB 187 SRM 1944

Certified Value = 25.1 ± 1.0 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
254

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concentration (ng/g, dry basis)

PCB 194 Sediment XIV (QA07SED14)

Assigned value = 10.0 ng/g s = 2.0 ng/g 95% CL = 1.7 ng/g (dry basis)

Reported Results: 9 Quantitative Results: 9

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

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concentration (ng/g dry basis)

PCB 194 SRM 1944

Certified Value = 11.2 ± 1.4 ng/g (dry basis)

Reported Results: 8 Quantitative Results: 8

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
255

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concentration (ng/g, dry basis)

PCB 195 Sediment XIV (QA07SED14)

Assigned value = 4.26 ng/g s = 1.10 ng/g 95% CL = 0.85 ng/g (dry basis)

Reported Results: 12 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

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6.00

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concentration (ng/g dry basis)

PCB 195 SRM 1944

Certified Value = 3.75 ± 0.39 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
256

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concentration (ng/g, dry basis)

PCB 206 Sediment XIV (QA07SED14)

Assigned value = 8.10 ng/g s = 1.61 ng/g 95% CL = 1.24 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 10

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

2.00

4.00

6.00

8.00

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12.00

14.00

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concentration (ng/g dry basis)

PCB 206 SRM 1944

Certified Value = 9.21 ± 0.51 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 9

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
257

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concentration (ng/g, dry basis)

PCB 209 Sediment XIV (QA07SED14)

Assigned value = 6.48 ng/g s = 1.36 ng/g 95% CL = 0.97 ng/g (dry basis)

Reported Results: 11 Quantitative Results: 11

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

1.0

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4.0

5.0

6.0

7.0

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concentration (ng/g dry basis)

PCB 209 SRM 1944

Certified Value = 6.81 ± 0.33 ng/g (dry basis)

Reported Results: 10 Quantitative Results: 10

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
258

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concentration (ng/g, dry basis)

BDE 15 Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 3 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

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0.90

1.00

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concentration (ng/g dry basis)

BDE 15 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 3 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
259

0.00

0.50

1.00

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3.00

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concentration (ng/g, dry basis)

BDE 17 Sediment XIV (QA07SED14)

Assigned value = 1.40 ng/g s = 0.15 ng/g 95% CL = 0.37 ng/g (dry basis)

Reported Results: 4 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 17 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 4 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
260

0.000

0.100

0.200

0.300

0.400

0.500

0.600

0.700

1a

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laboratory number

concentration (ng/g, dry basis)

BDE 28/33 Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 3 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.000

0.050

0.100

0.150

0.200

0.250

0.300

0.350

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 28/33 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 3 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
261

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

1a

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laboratory number

concentration (ng/g, dry basis)

BDE 47 Sediment XIV (QA07SED14)

Assigned value = 4.19 ng/g s = 0.34 ng/g 95% CL = 0.36 ng/g (dry basis)

Reported Results: 6 Quantitative Results: 6

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 47 SRM 1944

Target Value = 1.63 ± 0.41 ng/g (dry basis)

Reported Results: 5 Quantitative Results: 4

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
262

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

1a

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laboratory number

concentration (ng/g, dry basis)

BDE 49 Sediment XIV (QA07SED14)

Assigned value = 1.89 ng/g s = 0.45 ng/g 95% CL = 0.71 ng/g (dry basis)

Reported Results: 4 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 49 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 4 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
263

0.000

0.050

0.100

0.150

0.200

0.250

0.300

1a

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15

laboratory number

concentration (ng/g, dry basis)

BDE 66 Sediment XIV (QA07SED14)

Assigned value = 0.156 ng/g s = 0.027 ng/g 95% CL = 0.067 ng/g (dry basis)

Reported Results: 6 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.000

0.020

0.040

0.060

0.080

0.100

0.120

0.140

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 66 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 5 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
264

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

0.080

0.090

1a

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15

laboratory number

concentration (ng/g, dry basis)

BDE 75 Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 3 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 75 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 3 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
265

0.000

0.020

0.040

0.060

0.080

0.100

0.120

0.140

0.160

0.180

0.200

1a

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15

laboratory number

concentration (ng/g, dry basis)

BDE 85 Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 6 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.000

0.020

0.040

0.060

0.080

0.100

0.120

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 85 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 5 Quantitative Results: 1

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
266

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

1a

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laboratory number

concentration (ng/g, dry basis)

BDE 99 Sediment XIV (QA07SED14)

Assigned value = 4.07 ng/g s = 0.80 ng/g 95% CL = 0.83 ng/g (dry basis)

Reported Results: 6 Quantitative Results: 6

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 99 SRM 1944

Target Value = 1.80 ± 0.35 ng/g (dry basis)

Reported Results: 5 Quantitative Results: 4

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
267

0.00

0.50

1.00

1.50

2.00

2.50

1a

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laboratory number

concentration (ng/g, dry basis)

BDE 100 Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 6 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.000

0.100

0.200

0.300

0.400

0.500

0.600

0.700

0.800

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 100 SRM 1944

Target Value = 0.46 ± 0.12 ng/g (dry basis)

Reported Results: 5 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
268

0.000

0.100

0.200

0.300

0.400

0.500

0.600

0.700

1a

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laboratory number

concentration (ng/g, dry basis)

BDE 138 Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 5 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

1.60

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 138 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 4 Quantitative Results: 1

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
269

0.00

1.00

2.00

3.00

4.00

5.00

6.00

1a

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laboratory number

concentration (ng/g, dry basis)

BDE 153 Sediment XIV (QA07SED14)

Assigned value = 2.88 ng/g s = 0.51 ng/g 95% CL = 0.54 ng/g (dry basis)

Reported Results: 6 Quantitative Results: 6

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 153 SRM 1944

Target Value = 6.53 ± 1.32 ng/g (dry basis)

Reported Results: 5 Quantitative Results: 5

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
270

0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

1.60

1.80

1a

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laboratory number

concentration (ng/g, dry basis)

BDE 154 Sediment XIV (QA07SED14)

Assigned value = 0.895 ng/g s = 0.096 ng/g 95% CL = 0.153 ng/g (dry basis)

Reported Results: 6 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 154 SRM 1944

Target Value = 1.24 ± 0.58 ng/g (dry basis)

Reported Results: 5 Quantitative Results: 3

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
271

0.000

0.020

0.040

0.060

0.080

0.100

0.120

0.140

0.160

1a

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15

laboratory number

concentration (ng/g, dry basis)

BDE 155 Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 3 Quantitative Results: 2

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.000

0.020

0.040

0.060

0.080

0.100

0.120

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 155 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 3 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
272

0.0

5.0

10.0

15.0

20.0

25.0

1a

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15

laboratory number

concentration (ng/g, dry basis)

BDE 183 Sediment XIV (QA07SED14)

Assigned value = 11.3 ng/g s = 1.5 ng/g 95% CL = 1.6 ng/g (dry basis)

Reported Results: 6 Quantitative Results: 6

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 183 SRM 1944

Target Value = 32.2 ± 7.9 ng/g (dry basis)

Reported Results: 5 Quantitative Results: 5

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
273

0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

1.60

1.80

2.00

1a

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laboratory number

concentration (ng/g, dry basis)

BDE 190 Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 4 Quantitative Results: 3

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

4.50

5.00

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 190 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 4 Quantitative Results: 3

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
274

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

4.50

1a

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15

laboratory number

concentration (ng/g, dry basis)

BDE 203 Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 3 Quantitative Results: 1

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 203 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 3 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
275

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

1a

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15

laboratory number

concentration (ng/g, dry basis)

BDE 206 Sediment XIV (QA07SED14)

Assigned value = no target ng/g (dry basis)

Reported Results: 3 Quantitative Results: 1

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

9.00

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 206 SRM 1944

Target Value = no target ng/g (dry basis)

Reported Results: 3 Quantitative Results: 2

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
276

0

100

200

300

400

500

600

1a

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15

laboratory number

concentration (ng/g, dry basis)

BDE 209 Sediment XIV (QA07SED14)

Assigned value = 294 ng/g s = 65 ng/g 95% CL = 103 ng/g (dry basis)

Reported Results: 4 Quantitative Results: 4

Solid line : exercise assigned value (EAV); dotted line: z=±1 (25% from EAV); dotted/dashed 

line: z=±2 (50% from EAV); dashed line: z=±3 (75% from EAV)

0

50

100

150

200

250

300

1a

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15

laboratory number

concentration (ng/g dry basis)

BDE 209 SRM 1944

Target Value = 128 ± 84 ng/g (dry basis)

Reported Results: 4 Quantitative Results: 4

Solid line: value from Certificate of Analysis ; dotted line: 95% confidence limits; dashed line: 30% 

from 95% confidence limits
277

Appendix I: List of Laboratories Participating 

in 2007 Intercomparison Exercises

For this exercise, data were received from the following laboratories within the required timeframe. 

(This listing does NOT correspond to the laboratory number identification codes used in this report 

which were assigned in order of receipt of data with the exception of NIST which is Laboratory #1 in 

this exercise. The same code was used for both exercises.)

AXYS Analytical

2045 Mills Rd West / PO Box 2219

Sidney, BC V8L 3S8

Canada

Dale Hoover

East Bay Municipal Utility District

2020 Wake Avenue

Oakland, CA 94607

Saskai van Bergen and Francois Rodigari

Environment Canada - ALET

Environmental Science Center

Corner Morton & Université Ave

Moncton, NB E1A3E9 Canada

Jamie Aubé

Massachusetts Water Resources Authourity

100 Tafts Ave.

Winthrop, MA 02152

Jennifer Prasse 

NIST

100 Bureau Drive, Stop 8392

Gaithersburg, MD 20899-8392

Michele Schantz 

NOAA-NMFS

2725 Montlake Boulevard, East

Seattle, WA 98112

Catherine Sloan / Jennie Bolton

NOAA-NOS

Hollings Marine Laboratory

331 Fort Johnson Road

Charleston, SC 29412

Ed Wirth

TDI-Brooks International

B&B Laboratories
278

1902 Pinon

College Station, TX 77845

Juan Ramirez

Test America – Chicago

2417 Bond St.

University Park, IL 60466

Marilyn Krueding

Test America – Knoxville

5815 Middlebrook Pike

Knoxville, TN 37921

Christopher Rigell

Test America – Pittsburgh

301 Alpha Drive

Pittsburgh, PA 15238

Nasreen DeRubeis

Test America – South Burlington

30 Community Drive

Suite 11

South Burlington, VT 05403

Sara Goff

Test America – Tacoma

5755 8th Street East

Tacoma, WA 98424

Kathy Kreps

Test America – West Sacramento

880 Riverside Parkway

West Sacramento, CA 95605

Patrick Rainey

US Environmental Protection Agency – AED

27 Tarzwell Drive

Narragansett, RI 02882

Joseph LiVolsi
279