United States Department of Agriculture

Agricultural Marketing Service

Science & Technology

Pesticide Data Program

Annual Summary Calendar Year 1997
Pesticide
Pesticide




Pesticide Data Program - Annual Summary, Calendar Year 1997

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Pesticide Data Program (PDP)

Annual Summary, Calendar Year 1997

This summary consists of the following sections: 


Pesticide Data Program - Annual Summary, Calendar Year 1997

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Table 1. Pesticides in Pesticide Data Program, 1997

PART IA. Fresh and Processed Fruits and Vegetables (F&V)

(Subject to PDP quality assurance criteria)

46 Pesticides + 20 Metabolites/Degradates/Isomers

Acephate
Pesticide Data Program - Annual Summary, Calendar Year 1997

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PART IIA. Wheat - 1997 Crop Year

(Subject to PDP quality assurance criteria)

Analyzed by Multiresidue Methods (MRMs)
Pesticide Data Program - Annual Summary, Calendar Year 1997

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Pesticide Data Program - Annual Summary, Calendar Year 1997

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II. Sampling Protocol

Fruit and Vegetables Sampling Plan

PDP’s statistically reliable sampl ing protocol for fresh and

proces sed fruit and vegetables allows for making nearl y

unbiased estimates of pesticide residues for commodities

collect ed in the participating States and makes it possible

to quantify the accuracy of the estimates for the Nation as

a who le. Comparisons of PDP sample data wit h

independent estimates of commodit y production figures by

State as well as import data hav e shown close correlations.





Pesticide Data Program - Annual Summary, Calendar Year 1997

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All 732 samples collected originated in the participating test
Pesticide Data Program - Annual Summary, Calendar Year 1997

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• Quality Assurance Program

The main objectives of the quality assurance/quality

control (QA/QC) program are to ensure the reliability of

PDP data and the performance equivalency of the



Pesticide Data Program - Annual Summary, Calendar Year 1997

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Table 4. Comparison of Selected Residues Detected in Fresh vs. Canned/Frozen 

Green Beans

Year--Product Type % Detections % Detections % Detections % Detections % Detections

Endosulfans Chlorothalonil methamidophos Carbaryl Parathion-methyl

Acephate/

1993--Fresh 40.3 11.5 19.2 / 20.1 4.3 0

1994--Fresh 28.6 16.8 22.3 / 21.5 4.4 0

1995--Fresh 23.7 14.3 20.4 / 19.1 3.1 0

1996--Canned/Frozen < 1 0 33.5 / 32.2 11.9 3.4

1997--Canned/Frozen < 1 0 45.7 / 44.8 10.7 4.7

Table 5. Selected Residue Comparisons for Apples vs. Apple Juice

CARBARYL

APPLES APPLE JUICE

Year w/ Detections Detected, ppm Detected, ppm w/ Detections Detected, ppm Detected, ppm

% of Samples Maximum Value Mean of Values % of Samples Maximum Value Mean of Values

1993 22.3 0.80 0.14 * * *

1994 21.0 1.20 0.15 * * *

1995 11.0 0.74 0.15 * * *

1996 12.3 0.74 0.14 32.2 0.099 0.027

1997 * * * 24.6 0.17 0.019
Pesticide Data Program - Annual Summary, Calendar Year 1997

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dimethoate occurred in 20 percent of 1996-1997 apple Appendix


Pesticide Data Program - Annual Summary, Calendar Year 1997

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Appendix A

Commodity History

(A Chronological Listing)

 Appendix A shows a chronological listing of all commodities sampled since th
APPENDIX A. COMMODITY HISTORY

Fresh Commodities

Appendix B
APPENDIX B. SAMPLE ORIGIN BY GROWER, PACKER, OR DISTRIBUTOR

(Number of Samples per State/Country)

Part 1. Domestic Samples

Fresh F&V Processed F&V


Appendix C
Appendix C. Page 1 of 4

Laboratory Operations

Analysis 

Distribution of Residues for Composite Samples

Pesticide

Total

Samples

Screened

Samples with

Detections
Composite 
Appendix D

Quality Assurance Program Elements

PDP’s Quality Assurance (QA) program covers all aspects of data gathering, from

sample collection to data reporting. QA protocols for sampling are designed to protect
Appendix D. Page 1 of 2
Appendix D. Page 2 of 2

problems), which, in turn, resulted in lengthy run times. During 1997, PDP laboratories quantitated

a total of 25,452 matrix spikes, with an overall mean recovery of 92% and overall standard

deviation of 20%.

d. Process Control Spike: A compound of physical and chemical characteristics, similar to those

of the pesticides being tested, is used to evaluate the analytical process on a sample-by-sample

basis. Each of the analytical set components, except th
Appendix E

Distribution of Residues by Pesticide 

in Fruit and Vegetables 

Appendix E shows residue detections for all fruit and vegetable pesticide/

co
Pesticide

Total 

Samples 

Screened

Samples with 

Detections

% of Samples 

with Detections

Range of Values 

Detected, ppm

Range of 
Pesticide

Total 
Pesticide

Total 

0 0.006 - 0.024 NT 0.5

Total 6264 535

8 Benomyl - analyzed as carbendazim (fungicide)

Apple Juice 679 7 1.0 0.083 - 0.27 0.050 ^ 7.0 -

Green Beans 177 0 0.050 ^ 2.0 2

Orange Juice 689 0 0.050 ^ 10.0 -

Peaches 752 1 0.1 0.083 ^ 0.050 ^
Pesticide

Total 
Pesticide

Total 
Pesticide

Total 

3
Pesticide

Total 

Chlorpyrifos (insecticide)
Pesticide

Total 
Pesticide

Total 
Pesticide

Total 
Pesticide

Total 
Pesticide

Total 
Pesticide

Total 

Endosulfd.s (insecticide)

Endosulfd. I

Apple Juice 683 0 0.002 - 0.007 2.0 1

Green Bedns 707 3 0.4 0.003 ^ 0.002 - 0.007 2.0 0.5
Pesticide

Total 
Pesticide

Total 
Pesticide

Total 
Pesticide

Total 
Pesticide

Total 
Pesticide

Total 

Methidathion (insecticide)

Apple Juice 6830 0.003 - 0.010 0.05 0.5

Green Beans 7070 0.003 - 0.010
Pesticide

Total 
Pesticide

Total 

0 0.010 ^ NT -

Total 1047 0

69 Parathion (insecticide)
Pesticide

Total 
Pesticide

Total 
Pesticide

Total 
Pesticide

Total 

Quintozene - PCNB (fungicide)

Apple Juice 6760 0.003 - 0.006 NT -

Green Beans 7071 0.1 0.005 ^ 0.003 - 0.006 0.1 0.01

Orange Juice 6920 0.001 - 0.006 NT -

Peaches 7560 0.001 - 0.006 NT -

Pears 7080 0.003 - 0.006 NT -

Spinach, Fresh (V-3) 5123 0.6 0.002 ^ 0.001 - 0.006 NT -

Spinach, Canned 1680 0.001 - 0.006 NT -

Sweet Potatoes 695
Pesticide

Total 
Pesticide

Total 
Pesticide

Total 
Appendix F 
Pesticide

Total 

Samples 

Screened

Samples 

with 

Detections

% of 

Samples w/ 

Detections

Range of 

Values 

Detected, ppm

LODs, 

ppm

EPA 

Tolerance 

Level, ppm

Codex 

MRLs, ppm

Aldicarb 623 0.005 NT --

 Aldicarb sulfone 623
Pesticide
Appendix G 
Pesticide

Total 

Samples 

Screened

Samples 

with 

Detections

% of 

Samples w/ 

Detections

Range of 

Values 

Detected, ppm
Pesticide
Appendix H 

Distribution of Residues by Pesticide in Milk

Appendix H shows residue detections for all milk samples tested for pesticides
Pesticide

Total 

Samples 

Screened

Samples 

with 

Detections

% of 

Samples w/ 

Detections

Range of 

Values 

Detected, 

ppm

Range of 

LODs, ppm

EPA 

Tolerance 

Level, ppm

Codex 

MRLs, 

ppm

2,4-DB (herbicide) 272 0.005^ NT --

2,4-D (herbicide) 727 0.005 - 0.010 0.1 (W) 0.05

Abamectin (insecticide) 424 0.001^ 0.005 T --

Acephate 727
Pesticide

Dalapon (herbicide, growth 272 0.0

 regulator)

DCPA 272 0.0

DDT
Pesticide

Fenthion

727 0.001^ 0.01 (W) 0.05

Fenvalerate
Pesticide

Phosphamidon 272 0.0

Picloram (herbicide) 272 0.0

Pirimiphos methyl

249 0.001 - 0.003 3.0 (F) 

0.1 (W) 0.05


% of Ratio of

Samples with Mean** Percentiles 90th Percentile

Commodity / Pesticide Detections Lower Upper 50th 75th 90th to Tolerance

11 Wheat Grain

Chlorpyrifos methyl 55.6 0.059 0.060 0.003 0.034 0.181
Appendix J 

Cumulative Distributions of Residues for Selected

Pesticide/Commodity Pairs

In Appendix J, the concentrations detected (in parts per million, except wher
Percentiles

Concentration - (parts per million)
Percentiles
Percentiles
Percentiles
Appendix K

Percentage of Samples vs. Number of Residues

Detected per Sample

(Fresh and Processed Products)

Appendix K shows the percentage of samples versus the number of residues

detected per sample. Page 1 shows the overall number of samples and percentages (of

total number of samples analyzed) for each detection group across all commodities. Page

2 shows the number of residues detected by individual commodity. For the 7,835 samples

tested, 44.5 percent of the samples had no detectable residues, 26.9 percent had one

residue, and 28.6 percent of the samples had more than one residue.

More than one residue was found on approximately 30 percent of the fruit and

vegetables (38€
45

40

35

30

25

20

15

105

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0

Appendix L

Distribution of Presumptive Tolerance Violations 

(Across All Commodities)

Appendix L shows th Tostribution of presumptive tolerance violations reported in

1997 samples across all commodities. In 1997, the following commodities were analyzed:

< 6,321 fruit and vegetable samples were analyzed. A total of 383 samples

(6%) were reported as presumptive tolerance violations.
APPENDIX L. DISTRIBUTION OF PRESUMPTIVE TOLERANCE VIOLATIONS

Pesticide

Samples 
Pesticide

Samples 

Screened

Samples 
Pesticide

Appendix M

Import vs. Domestic Pesticide Residue Comparisons

PDP
Origin Year
Pesticide
Pesticide
Pesticide Origin

# of Samples 

Analyzed

# of Residues 

Above Tolerance

# of Residues with 

NO Tolerance

GRAPES

Acephate U.S. 969 0 2

Chile 790 0 0

3-Hydroxycarbofuran U.S. 964 0 0

Chile 703 4 0

Chlorothalonil U.S. 764 0 0

Chile 667 0 1

Chlorpropham U.S. 969 0 0

Chile 790 0 1

Diphenylamine (DPA) U.S. 880 0 1

Chile 757 0 1

Fenvalerate U.S. 938 0 0

Chile 630 0 1

Hexachlorobenzene U.S. 969 0 0
Origin Year

# of Samples 
Pesticide

# of Samples 

Analyzed

# of Samples 

w/ Detections

% of Samples 

w/ Detections

Chlorpyrifos 222 83 37

617 24 4

Chlorothalonil 222 3 1

618 71 11
Pesticide

Country of 

Origin
 PESTICIDE DATA PROGRAM 

 

 

 Annual Summary Calendar Year 1997

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