Document ID: EPA-HQ-OPP-2007-0398-0007
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2008-05-07T04:00Z

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

WASHINGTON, D.C.  20460

OFFICE OF   

PREVENTION, PESTICIDES

AND TOXIC SUBSTANCES 

		PC Code No.:	 124871

DP Barcodes: D339673, 337172

		October 18, 2007

SUBJECT:	Spirodiclofen Drinking Water Assessment for: (1) IR-4 Use on
Hops; and (2) Section 3 Use on Christmas Trees

TO:		Susan Stanton 

		Daniel Rosenblatt

		Rita Kumar

		John Hebert

		Registration Division 

		Tom Bloem 

Health Effects Division 

FROM:	Larry Liu, Environmental Scientist, Ph.D.

		Environmental Fate and Effects Division (7507P)

THROUGH:	Mah Shamim, Ph.D., Branch Chief

Environmental Risk Branch V

Environmental Fate and Effects Division (7507P)

		The previous drinking water assessment for use of spirodiclofen
(Envidor ® 2 SC) miticide on citrus, pome fruits, stone fruits, tree
nuts crops, and grapes (completed on January 4, 2005) can be used for
the currently proposed uses of spirodiclofen (Envidor ® 2 SC).  The new
uses include: (1) hops under IR-4 petition; and (2) Christmas trees
under Section 3.  The maximum single application rates and the
yearly/seasonal application rates (0.39lb ai/A) for the proposed uses
are lower than the rates (0.53 lb ai/A) used in the drinking water
assessment completed on January 4, 2005.  

		The previous drinking water assessment on citrus, pome fruits, stone
fruits, tree nuts crops, and grapes is attached.  This drinking water
assessment document can also be found at:

		F:/Users/Share/Document Tracking and Storage/Files/124871/DWAs/124871
311291 DWA.WP.

	UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

	WASHINGTON, D.  C.  20460

	

	

	OFFICE OF

	PREVENTION, PESTICIDES

	AND TOXIC SUBSTANCES

  January 4, 2005

PC Code 124871

DP Barcode: D311291

MEMORANDUM 

SUBJECT: 	Estimated Drinking Water Concentrations of combined  residue
of spirodiclofen and it’s degradates (spirodiclofen-enol,
spirodiclofen-ketohydroxy and spirodiclofen-dihydroxy) in surface water
and groundwater

To:		Daniel Kenny, Risk Manager 

Rita Kumer, Chemical Review Manager			

Reregistration Division (7505C)

Mary Clock-Rust, Biologist		

Tom Bloem, Chemist

Health Effects Division (7509C)

From:		Faruque Khan, Ph.D, Environmental Scientist

Larry Liu, Ph.D, Environmental Scientist

Environmental Risk Branch V

Environmental Fate and Effects Division (7507C)

Through:	Mah Shamim, Ph.D., Chief

Environmental Risk Branch V

Environmental Fate and Effects Division (7507C)

 μg/L. The 1 in 10 year annual average concentration (non-cancer
chronic) and 30 year annual average concentration (cancer) of
spirodiclofen residues is not likely to exceed 4.99 and 1.67 μg/L,
respectively. Tier I  SCIGROW model was used in generating groundwater
EDWCs for the highest application rate of 0.53 lbs. a.i./A and the
resulted concentration is 0.43 μg/L for spirodiclofen residue, which is
recommended to use for both acute and chronic exposures. The EDWCs for
surface and ground water resources are presented in Table 1. An
electronic PRZM/EXAMS time-series output file of PCA adjusted daily
EDWCs for surface water for Florida citrus scenario was also provided to
Tom Bloem, Health Effects Division (HED).

Table 1. Estimated Drinking Water Concentrations (EDWC’s) of total
residue of Spirodiclofen and it’s three degradates
(Spirodiclofen-enol, Spirodiclofen-Ketohydroxy and
Spirodiclofen-dihydroxy) in surface water and groundwater

Chemical	

       Surface Water (µg/L)	

Groundwater

 (µg/L)

	

             Acute               	

Non-cancer chronic 	

cancer chronic

	

Total residue  (Spirodiclofen, Spirodiclofen-enol,
Spirodiclofen-Ketohydroxy and Spirodiclofen-dihydroxy)	

23.86	

4.99	

1.67	

0.44*

* Recommended EDWCs values for acute and chronic for groundwater

1.0 ESTIMATION OF SURFACE WATER AND GROUNDWATER EXPOSURE  CONCENTRATIONS

A cumulative residue modeling approach was used to account for the
environmental fate and transport of spirodiclofen and its degradation
products (spirodiclofen-enol, spirodiclofen-ketohydroxy and
spirodiclofen-dihydroxy) with toxicological concern. These residues were
designated by the HED’s  Metabolite Assessment Review Committee (MARC)
as being spirodiclofen  residues of human-health toxicological concern.
Linear fitting techniques using the first order degradation model (y =
-bx + a) was used in calculating  the combined residue half-lives. The
Envidor ® 2 SC label application rates and the environmental fate
parameters for spirodiclofen residue  were used in estimating EDWCs
using  two screening models PRZM/EXAMS, shell PE4V01a (8/13/03) for
surface water and SCIGROW v.2.3 (7/29/03) for groundwater.  The outputs
of the two screening models represent estimates of the concentrations
that might be found in surface water and groundwater due to the use of
spirodiclofen. Several scenarios (apple, citrus, peaches, grape, and
pecan) were investigated and the Florida citrus provided the highest
EDWCs among the modeled scenarios (Table 2).



Table 2. Estimated Drinking Water Concentrations (EDWCs) of total
residue concern of Spirodiclofen and                 it’s three
degradates (spirodiclofen-enol, spirodiclofen-ketohydroxy and
spirodiclofen-dihydroxy)                  for multiple crop scenarios 

Crops Scenarios	

(Applicatio⁮慲整‬牦煥敵据⥹ഇ⼱〱倠慥⁫⠍捁瑵⥥

μg/L ‡ 	

1/10 Yearly Average

(non-Cancer Chronic)

μg/L ‡ 	

30 years Average

(Cancer Chronic)

μg/L ‡ 

Florida Citrus 	

0.31lbs ai/A , 1 application 	

23.86	

4.99	

1.67

GA Pecan	

0.53lbs ai/A , 1 application 	

11.75	

2.02	

0.70

PA Apple	

0.28lbs ai/A , 1 application 	

5.52	

1.97	

1.09

GA Peaches	

0.28lbs ai/A , 1 application	

3.92	

1.41	

0.64

CA Grape	

0.53lbs ai/A , 1 application 	

2.50	

1.44	

0.97

OR Apple	

0.28lbs ai/A , 1 application	

1.01	

0.59	

0.43

‡ = PRZMEXAM EDWC values for crops were corrected for PCA (default
=0.87)

2.0 Background Information on PRZM/EXAMS 

The linked PRZM and EXAMS model (PRZM/EXAMS) is typically used by the
Environmental Fate and Effects Division (EFED) in estimating pesticides
concentrations in surface waters. PRZM is employed to evaluate runoff
loading to a  receiving surface water body. As soon as the pesticide
residues reaches the surface water, EXAMS uses algorithms to the
pesticides concentrations by taken into account different dissipation
mechanism in the aqueous and sediment phases.

PRZM is a one-dimensional finite-difference modeling system that was
originally developed to model nitrogen soil kinetic processes and
groundwater environment. It was later enhanced to expand its capability
to predict pesticides transport and transformation down through the crop
zone and saturated zone. The expanded capabilities cover additional
phenomena such as soil temperature simulation, microbial transformation,
vapor phase transport in soils, volatilization, irrigation simulation,
and a method of characteristics (MOC) algorithm to eliminate numerical
dispersion.

EXAMS is a model that has a set of process modules that link fundamental
chemical properties to limnological processes that control the kinetics
and transport of chemicals in aquatic systems. It provides facilities
for steady state or long-term evaluation of chronic chemical discharges,
initial-value approaches for studying short-term contaminant releases,
and full kinetic simulations that allow for monthly variation in mean
climatological factors, and changes in contaminant loadings on daily
time scales. It is fairly and relatively complex model that requires
more input variables, ranging from hydro-geological and weather data to
pesticide physicochemical properties, mobility coefficients, and
degradation rate constants in the aqueous and sediment phases.

3.0 Background Information on SCI-GROW

SCIGROW is a regression-based model that provides a groundwater
screening exposure value to be used in determining the potential risk to
human health from drinking water contaminated with the pesticide.
SCIGROW estimates likely groundwater concentrations if the pesticide is
used at the maximum allowable rate in areas where groundwater is
exceptionally vulnerable to contamination. 

4.0 Uncertainties, Assumptions, and Limitations

Uncertainties, assumptions, and limitations of the simulation modeling
are as follows:

A major uncertainty in the assessment is the lack of environmental fate
data for the toxic transformation products of spirodiclofen.  In order
to address this uncertainty, EFED has conducted the Tier II  modeling on
the summed spirodiclofen residues instead of individual residues. This
approach was taken because the environmental fate studies were deficient
in addressing the identification and fate of spirodiclofen
transformation products.

The cumulative residue modeling method assumes environmental fate
properties for spirodiclofen and its degradation products
(spirodiclofen-enol, spirodiclofen-ketohydroxy and
spirodiclofen-dihydroxy) are similar.  This modeling approach provides a
conservative assessment process for consideration of simultaneous
formation and decline of spirodiclofen  residues.  However, it is likely
to provide conservative estimates because minor degradation products
(<10% of applied) may dictate the environmental fate properties for all
spirodiclofen residues

The adsorption coefficient and solubility of  spirodiclofen-enol was
used because it has the lowest average Koc and highest solubility. These
properties may provide conservative estimates because low Koc and high
solubility may dictate the runoff load for all spirodiclofen residues.

PRZM-EXAMS scenarios are regionally representative for each crop. They
may not represent the most conservative runoff or spray drift situation
for each and every crop.  It is assumed focusing on several scenarios in
higher runoff areas such as the eastern United States will capture upper
end spirodiclofen residue concentrations in drinking water.

Spirodiclofen is a new chemical. Monitoring data are not available to
evaluate the prediction potential of PRZM/EXAMS and SCIGROW simulation
modeling. 

5.0 Modeling Inputs and Results:

Tables 3 and 4 summarize the spirodiclofen input values used in the
model runs for PRZM/ EXAMS and SCIGROW, respectively. PRZM /EXAMS and
SCIGROW modeling results are presented in Table 1 and 2. This memo also
contains the copies of the outputs generated from the PRZM/EXAMS and
SCIGROW models (Appendix A). Appendix A-2 has a truncated PRZM/EXAMS
daily time-series output file. Half-life calculation methods for
spirodiclofen total residue analysis can be found in Appendix B for
various environmental fate studies. 

Table 3.  PRZM/EXAMS  Input Parameters for spirodiclofen and its
degradates (spirodiclofen-enol,                            
spirodiclofen-ketohydroxy and spirodiclofen-dihydroxy)

Parameters	

Values & Units	

Sources	

Comments

Molecular Weight	

 414.4 g Mole-1	

MRID 45697217 (parent)	

----

Vapor Pressure 25oC	

5.25E-07 Torr	

MRID 45697217 (parent)	

----

Water Solubility @ pH 7.0 and 20oC	

6000 mg/L	

MRID 45697227 (-enol)	

The solubility of Spirodiclofen-enol at neutral pH represents the 
maximum solubility among the residue concerns

Hydrolysis Half-Life (pH 7)	

Stable	

MRID 45697217 	

Sum of spirodiclofen and -enol = 100% of applied at 30 days at pH 7

Aerobic Soil Metabolism t½,	

 75.8 days (90% upper conf.  bound on 5 values) 

(Sandy loam 119.5 days

Sandy loam 25.7 days

Sand 46.8 days

Loamy Sand 25.7 days

Silt 17.6 days)	

MRIDs 45697-204,

 -208,  & -228 

 (parent)	

Half-life of these soils were based on sum of spirodiclofen, -enol,
-dihydroxy, and -ketohydroxy. 

Aerobic aquatic metabolism 	

151.6 day (75.8*2)	

MRID 45697205 (parent)	

Stable in two different systems based on sum of spirodiclofen and -enol.
Spirodiclofen-enol was detected in the water, sediment and total system,
but was variable and showed no clear pattern of decline.  2X of Soil
aerobic half-life was used according to EFED’s input Guidelines‡.  

Direct Aqueous Photolysis	

25.4 days	

MRID 45697218 	

Based on sum of spirodiclofen and -enol.  Adjusted for 12-hour
light/dark cycle; stable in dark control.

Soil Water Partition Coefficient (Koc)

	

17.79  L Kg-1 

(mean of 4 values )	

MRID 456972213 (-enol) 	

Mean Koc of Spirodiclofen-enol was used ,which represents least
adsorption among parent and degradates.

    Application Method	

Ground Spray (Air blast)

CAM§ = 2	

Envidor ® 2 SC Miticide Label ( EPA Reg. No. 3125-LOR	

----

    Spray Efficiency	

99%

	

According to EFED’s input Guidelines‡	

Standard assumption

    Spray Drift 

(air blast)	

0.063	

According to EFED’s input Guidelines‡	

Standard assumption

CROP MANAGEMENT

Crop (Scenarios)

Pesticide application rate and frequency	

Application Date	

Sources	

Comments

Citrus (FL Citrus) 

 0.31lbs ai/A , 1 application	

May  15	

Envidor ® 2 SC Miticide Label ( EPA Reg. No. 3125-LOR	

No application date available. Spring date used

Pome Fruits (OR apple and PA apple)

 0.28 lbs ai/A , 1 application	

May 15	

Envidor ® 2 SC Miticide Label ( EPA Reg. No. 3125-LOR

	

Stone Fruits (GA Peaches) 

 0.28 lbs ai/A , 1 application	

May 15	

Envidor ® 2 SC Miticide Label ( EPA Reg. No. 3125-LOR

	

Grapes (CA Grapes) 

 0.53 lbs ai/A , 1 application	

May 15	

Envidor ® 2 SC Miticide Label ( EPA Reg. No. 3125-LOR

	

Tree Nut Crops (GA Pecan)  

 0.53lbs ai/A , 1 application	

May 15	

Envidor ® 2 SC Miticide Label ( EPA Reg. No. 3125-LOR

	

‡ Guidance for selecting input parameters in modeling for
environmental fate and transport of pesticides. Version II. February 28,
2002.

§ Chemical Application Method, PRZM 3.1 User manual (1997), National
Exposure Research Laboratory, USEPA, Athens, GA. 

§ 



Table 4.  SCIGROW Input Parameters for Spirodiclofen and its degradates
(spirodiclofen-enol, spirodiclofen-ketohydroxy and
spirodiclofen-dihydroxy)

Parameter	

Values & Units	

Sources	

Comments

Application Rate and frequency	

0.53 lbs ai/A , 1 application 	

Envidor ® 2 SC Miticide Label ( EPA Reg. No. 3125-LOR	

Maximum application rate

Organic Carbon Partition Coefficient (median KOC)	

15.68  L Kg-1 

(median  of 4 values‡ )	

MRID 456972213 

(-enol)	

Median Koc of Spirodiclofen-enol was used ,which represents the least
adsorption among parent and degradates.

Aerobic Soil Metabolism Half-Life	

25.7 days  (median value‡ )

(Sandy loam 119.5 days

Sandy loam 25.7 days

Sand 46.8 days

Loamy Sand 25.7 days

Silt 17.6 days)	

MRIDs 45697-204,

 -208,  & -228 

 (parent)	

Half-life of these soils were based on sum of spirodiclofen, -enol,
-dihydroxy, and -ketohydroxy. 

‡ Guidance for selecting input parameters in modeling for
environmental fate and transport of pesticides. Version II. February 28,
2002.

APPENDIX  A-1.  PRZM/EXAMS OUTPUT FILES

stored as FLcitrus.out					

Chemical: Spirodiclofen						

PRZM environment: FLcitrusC.txt			

EXAMS environment: ir298.exv			

Metfile: w12842.dvf		

Water segment concentrations (ppb)

	Year	Peak	96 hr	21 Day	60 Day	90 Day	Yearly

	1961	1.39	1.35	1.26	1.08	0.96	0.35

	1962	1.47	1.43	1.29	1.05	0.93	0.36

	1963	0.88	0.86	0.80	0.75	0.70	0.29

	1964	3.15	3.10	2.87	2.41	2.08	0.79

	1965	2.88	2.82	2.57	2.07	1.77	0.73

	1966	8.62	8.42	7.61	6.11	5.22	1.89

	1967	1.34	1.31	1.24	1.07	0.97	0.52

	1968	4.42	4.31	3.89	3.11	2.66	0.98

	1969	27.20	26.55	24.11	19.24	16.35	5.75

	1970	14.36	14.02	12.97	10.38	8.82	3.46

	1971	44.15	43.10	38.98	31.12	26.48	9.39

	1972	2.86	2.81	2.58	2.16	1.90	1.06

	1973	0.86	0.83	0.75	0.67	0.60	0.25

	1974	2.09	2.04	1.86	1.49	1.27	0.49

	1975	1.43	1.39	1.27	1.03	0.93	0.37

	1976	49.18	48.13	43.63	34.97	29.79	10.35

	1977	3.46	3.40	3.16	2.68	2.37	1.34

	1978	5.19	5.06	4.76	3.85	3.27	1.19

	1979	7.46	7.28	6.57	5.22	4.50	1.67

	1980	1.72	1.68	1.53	1.37	1.20	0.54

	1981	4.43	4.32	4.05	3.33	2.85	1.04

	1982	4.15	4.08	3.86	3.11	2.65	1.01

	1983	27.45	26.78	24.20	19.28	16.39	5.72

	1984	6.54	6.38	5.75	4.58	3.90	1.84

	1985	10.83	10.60	9.60	7.65	6.50	2.35

	1986	1.18	1.15	1.06	1.00	0.90	0.53

	1987	9.66	9.43	8.51	6.79	5.76	2.01

	1988	2.64	2.57	2.33	2.03	1.76	0.77

	1989	1.29	1.26	1.13	0.91	0.85	0.37

	1990	1.48	1.44	1.35	1.11	0.97	0.37

Sorted results

Prob.	Peak	96 hr	21 Day	60 Day	90 Day	Yearly

	0.03	49.18	48.13	43.63	34.97	29.79	10.35

	0.06	44.15	43.10	38.98	31.12	26.48	9.39

	0.10	27.45	26.78	24.20	19.28	16.39	5.75

	0.13	27.20	26.55	24.11	19.24	16.35	5.72

	0.16	14.36	14.02	12.97	10.38	8.82	3.46

	0.19	10.83	10.60	9.60	7.65	6.50	2.35

	0.23	9.66	9.43	8.51	6.79	5.76	2.01

	0.26	8.62	8.42	7.61	6.11	5.22	1.89

	0.29	7.46	7.28	6.57	5.22	4.50	1.84

	0.32	6.54	6.38	5.75	4.58	3.90	1.67

	0.35	5.19	5.06	4.76	3.85	3.27	1.34

	0.39	4.43	4.32	4.05	3.33	2.85	1.19

	0.42	4.42	4.31	3.89	3.11	2.66	1.06

	0.45	4.15	4.08	3.86	3.11	2.65	1.04

	0.48	3.46	3.40	3.16	2.68	2.37	1.01

	0.52	3.15	3.10	2.87	2.41	2.08	0.98

	0.55	2.88	2.82	2.58	2.16	1.90	0.79

	0.58	2.86	2.81	2.57	2.07	1.77	0.77

	0.61	2.64	2.57	2.33	2.03	1.76	0.73

	0.65	2.09	2.04	1.86	1.49	1.27	0.54

	0.68	1.72	1.68	1.53	1.37	1.20	0.53

	0.71	1.48	1.44	1.35	1.11	0.97	0.52

	0.74	1.47	1.43	1.29	1.08	0.97	0.49

	0.77	1.43	1.39	1.27	1.07	0.96	0.37

	0.81	1.39	1.35	1.26	1.05	0.93	0.37

	0.84	1.34	1.31	1.24	1.03	0.93	0.37

	0.87	1.29	1.26	1.13	1.00	0.90	0.36

	0.90	1.18	1.15	1.06	0.91	0.85	0.35

	0.94	0.88	0.86	0.80	0.75	0.70	0.29

	0.97	0.86	0.83	0.75	0.67	0.60	0.25

0.10	27.43	26.76	24.19	19.28	16.39	5.74

Average of yearly averages:	1.93

Inputs generated by pe4.pl - 8-August-2003

Data used for this run:					

Output File: FLcitrus						

Metfile:	w12842.dvf					

PRZM scenario:	FLcitrusC.txt					

EXAMS environment file:	ir298.exv

Chemical Name:	Spirodiclofen						

Description	Variable Name	Value	Units	Comments

Molecular weight	mwt	411.4	g/mol

Henry's Law Const.	henry

atm-m^3/mol

	Vapor Pressure	vapr	5.25E-07	torr

Solubility	sol	6000	mg/L

Kd	Kd

mg/L

Koc	Koc	17.79	mg/L

Photolysis half-life	kdp	25.4	days	Half-life

	Aerobic Aquatic Metabolism	kbacw	151.6	days	Halfife

	Anaerobic Aquatic Metabolism	kbacs

days	Halfife

	Aerobic Soil Metabolism	asm	75.8	days	Halfife

	Hydrolysis:	pH 7	0	days	Half-life

	Method:	CAM	2	integer	See PRZM manual

Incorporation Depth:	DEPI	0	cm

Application Rate:	TAPP	0.35	kg/ha

Application Efficiency:	APPEFF	0.99	fraction

Spray Drift	DRFT	0.063	fraction of application rate applied to pond

Application Date	Date	15-5	dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17:	FILTRA

	IPSCND	1

UPTKF

Record 18:	PLVKRT

	PLDKRT

	FEXTRC	0.5

	Flag for Index Res. Run	IR	IR

	Flag for runoff calc.	RUNOFF	total	none, monthly or total(average of
entire run)

	stored as PAapple.out					

Chemical: Spirodiclofen						

PRZM environment: PAappleC.txt			

EXAMS environment: ir298.exv		

Metfile: w14737.dvf	

Water segment concentrations (ppb)

	Year	Peak	96 hr	21 Day	60 Day	90 Day	Yearly

	1961	0.76	0.75	0.71	0.61	0.62	0.30

	1962	1.50	1.47	1.38	1.20	1.09	0.58

	1963	0.94	0.93	0.88	0.77	0.70	0.43

	1964	1.10	1.08	1.02	0.91	0.86	0.46

	1965	0.91	0.90	0.84	0.80	0.73	0.41

	1966	0.84	0.83	0.80	0.71	0.64	0.35

	1967	6.36	6.26	5.88	5.12	4.64	2.00

	1968	3.30	3.25	3.08	2.70	2.44	1.59

	1969	1.31	1.29	1.22	1.13	1.04	0.68

	1970	1.22	1.20	1.14	1.01	0.92	0.49

	1971	1.20	1.19	1.13	0.98	0.92	0.48

	1972	7.22	7.13	6.72	5.87	5.28	2.30

	1973	2.65	2.62	2.47	2.15	1.98	1.37

	1974	1.81	1.78	1.71	1.49	1.34	0.80

	1975	1.35	1.33	1.25	1.11	1.04	0.61

	1976	0.89	0.88	0.84	0.78	0.72	0.41

	1977	1.79	1.76	1.65	1.43	1.29	0.64

	1978	2.07	2.05	1.93	1.74	1.58	0.80

	1979	5.85	5.78	5.48	4.79	4.32	1.96

	1980	1.43	1.42	1.36	1.25	1.16	0.86

	1981	4.10	4.04	3.83	3.34	3.01	1.37

	1982	6.31	6.24	5.92	5.19	4.68	2.26

	1983	1.82	1.80	1.72	1.54	1.39	1.03

	1984	5.86	5.78	5.62	4.96	4.47	2.00

	1985	1.43	1.42	1.35	1.24	1.15	0.87

	1986	3.71	3.66	3.46	3.02	2.73	1.26

	1987	1.18	1.16	1.10	1.00	0.92	0.65

	1988	6.75	6.66	6.29	5.48	4.92	2.15

	1989	6.07	5.99	5.77	5.12	4.63	2.39

	1990	5.83	5.76	5.41	4.70	4.23	2.25

Sorted results

Prob.	Peak	96 hr	21 Day	60 Day	90 Day	Yearly

	0.03	7.22	7.13	6.72	5.87	5.28	2.39

	0.06	6.75	6.66	6.29	5.48	4.92	2.30

	0.10	6.36	6.26	5.92	5.19	4.68	2.26

	0.13	6.31	6.24	5.88	5.12	4.64	2.25

	0.16	6.07	5.99	5.77	5.12	4.63	2.15

	0.19	5.86	5.78	5.62	4.96	4.47	2.00

	0.23	5.85	5.78	5.48	4.79	4.32	2.00

	0.26	5.83	5.76	5.41	4.70	4.23	1.96

	0.29	4.10	4.04	3.83	3.34	3.01	1.59

	0.32	3.71	3.66	3.46	3.02	2.73	1.37

	0.35	3.30	3.25	3.08	2.70	2.44	1.37

	0.39	2.65	2.62	2.47	2.15	1.98	1.26

	0.42	2.07	2.05	1.93	1.74	1.58	1.03

	0.45	1.82	1.80	1.72	1.54	1.39	0.87

	0.48	1.81	1.78	1.71	1.49	1.34	0.86

	0.52	1.79	1.76	1.65	1.43	1.29	0.80

	0.55	1.50	1.47	1.38	1.25	1.16	0.80

	0.58	1.43	1.42	1.36	1.24	1.15	0.68

	0.61	1.43	1.42	1.35	1.20	1.09	0.65

	0.65	1.35	1.33	1.25	1.13	1.04	0.64

	0.68	1.31	1.29	1.22	1.11	1.04	0.61

	0.71	1.22	1.20	1.14	1.01	0.92	0.58

	0.74	1.20	1.19	1.13	1.00	0.92	0.49

	0.77	1.18	1.16	1.10	0.98	0.92	0.48

	0.81	1.10	1.08	1.02	0.91	0.86	0.46

	0.84	0.94	0.93	0.88	0.80	0.73	0.43

	0.87	0.91	0.90	0.84	0.78	0.72	0.41

	0.90	0.89	0.88	0.84	0.77	0.70	0.41

	0.94	0.84	0.83	0.80	0.71	0.64	0.35

	0.97	0.76	0.75	0.71	0.61	0.62	0.30

0.10	6.35	6.26	5.91	5.18	4.68	2.26

Average of yearly averages:	1.12

Inputs generated by pe4.pl - 8-August-2003

Data used for this run:					

Output File: PAapple					

Metfile:	w14737.dvf					

PRZM scenario:	PAappleC.txt					

EXAMS environment file:	ir298.exv

Chemical Name:	Spirodiclofen						

Description	Variable Name	Value	Units	Comments

Molecular weight	mwt	411.4	g/mol

Henry's Law Const.	henry

atm-m^3/mol

	Vapor Pressure	vapr	5.25E-07	torr

Solubility	sol	6000	mg/L

Kd	Kd

mg/L

Koc	Koc	17.79	mg/L

Photolysis half-life	kdp	25.4	days	Half-life

	Aerobic Aquatic Metabolism	kbacw	151.6	days	Halfife

	Anaerobic Aquatic Metabolism	kbacs

days	Halfife

	Aerobic Soil Metabolism	asm	75.8	days	Halfife

	Hydrolysis:	pH 7	0	days	Half-life

	Method:	CAM	2	integer	See PRZM manual

Incorporation Depth:	DEPI	0	cm

Application Rate:	TAPP	0.31	kg/ha

Application Efficiency:	APPEFF	0.99	fraction

Spray Drift	DRFT	0.063	fraction of application rate applied to pond

Application Date	Date	15-5	dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17:	FILTRA

	IPSCND	1

UPTKF

Record 18:	PLVKRT

	PLDKRT

	FEXTRC	0.5

	Flag for Index Res. Run	IR	IR

	Flag for runoff calc.	RUNOFF	total	none, monthly or total(average of
entire run)

	stored as ORapple.out					

Chemical: Spirodiclofen						PRZM environment: ORappleC.txt			

EXAMS environment: ir298.exv	

Metfile: w24229.dvf		

Water segment concentrations (ppb)

	Year	Peak	96 hr	21 Day	60 Day	90 Day	Yearly

	1961	0.71	0.70	0.68	0.61	0.56	0.26

	1962	0.85	0.84	0.81	0.74	0.68	0.38

	1963	0.88	0.88	0.84	0.76	0.71	0.41

	1964	0.90	0.89	0.85	0.78	0.72	0.43

	1965	0.90	0.89	0.86	0.78	0.72	0.42

	1966	0.90	0.89	0.85	0.80	0.77	0.46

	1967	0.92	0.91	0.88	0.79	0.73	0.44

	1968	2.12	2.10	2.07	1.90	1.76	0.91

	1969	1.17	1.16	1.11	1.02	0.95	0.67

	1970	0.96	0.95	0.91	0.82	0.76	0.48

	1971	0.92	0.91	0.87	0.79	0.74	0.48

	1972	0.94	0.94	0.90	0.82	0.76	0.46

	1973	0.90	0.89	0.85	0.77	0.71	0.42

	1974	0.89	0.88	0.85	0.77	0.71	0.41

	1975	0.89	0.88	0.85	0.77	0.71	0.41

	1976	0.89	0.88	0.85	0.77	0.71	0.42

	1977	0.99	0.98	0.95	0.90	0.85	0.49

	1978	0.94	0.93	0.89	0.81	0.75	0.46

	1979	0.90	0.89	0.85	0.77	0.71	0.45

	1980	0.94	0.93	0.90	0.85	0.80	0.48

	1981	0.91	0.90	0.87	0.85	0.79	0.47

	1982	0.91	0.90	0.87	0.78	0.72	0.43

	1983	0.89	0.88	0.84	0.76	0.71	0.42

	1984	0.94	0.93	0.90	0.85	0.80	0.46

	1985	2.16	2.14	2.05	1.83	1.68	0.89

	1986	1.18	1.16	1.12	1.01	0.94	0.68

	1987	0.97	0.96	0.92	0.83	0.77	0.48

	1988	0.90	0.89	0.85	0.81	0.75	0.44

	1989	1.12	1.11	1.07	0.97	0.92	0.52

	1990	0.94	0.93	0.90	0.83	0.77	0.47

Sorted results

Prob.	Peak	96 hr	21 Day	60 Day	90 Day	Yearly

	0.03	2.16	2.14	2.07	1.90	1.76	0.91

	0.06	2.12	2.10	2.05	1.83	1.68	0.89

	0.10	1.18	1.16	1.12	1.02	0.95	0.68

	0.13	1.17	1.16	1.11	1.01	0.94	0.67

	0.16	1.12	1.11	1.07	0.97	0.92	0.52

	0.19	0.99	0.98	0.95	0.90	0.85	0.49

	0.23	0.97	0.96	0.92	0.85	0.80	0.48

	0.26	0.96	0.95	0.91	0.85	0.80	0.48

	0.29	0.94	0.94	0.90	0.85	0.79	0.48

	0.32	0.94	0.93	0.90	0.83	0.77	0.48

	0.35	0.94	0.93	0.90	0.83	0.77	0.47

	0.39	0.94	0.93	0.90	0.82	0.77	0.47

	0.42	0.94	0.93	0.89	0.82	0.76	0.46

	0.45	0.92	0.91	0.88	0.81	0.76	0.46

	0.48	0.92	0.91	0.87	0.81	0.75	0.46

	0.52	0.91	0.90	0.87	0.80	0.75	0.46

	0.55	0.91	0.90	0.87	0.79	0.74	0.45

	0.58	0.90	0.89	0.86	0.79	0.73	0.44

	0.61	0.90	0.89	0.85	0.78	0.72	0.44

	0.65	0.90	0.89	0.85	0.78	0.72	0.43

	0.68	0.90	0.89	0.85	0.78	0.72	0.43

	0.71	0.90	0.89	0.85	0.77	0.71	0.42

	0.74	0.90	0.89	0.85	0.77	0.71	0.42

	0.77	0.89	0.88	0.85	0.77	0.71	0.42

	0.81	0.89	0.88	0.85	0.77	0.71	0.42

	0.84	0.89	0.88	0.85	0.77	0.71	0.41

	0.87	0.89	0.88	0.84	0.76	0.71	0.41

	0.90	0.88	0.88	0.84	0.76	0.71	0.41

	0.94	0.85	0.84	0.81	0.74	0.68	0.38

	0.97	0.71	0.70	0.68	0.61	0.56	0.26

0.10	1.17	1.16	1.12	1.02	0.95	0.68

Average of yearly averages:	0.49

Inputs generated by pe4.pl - 8-August-2003			

							

Data used for this run:					

Output File: ORapple					

Metfile:	w24229.dvf					

PRZM scenario:	ORappleC.txt					

EXAMS environment file:	ir298.exv

Chemical Name:	Spirodiclofen						

Description	Variable Name	Value	Units	Comments

Molecular weight	mwt	411.4	g/mol

Henry's Law Const.	henry

atm-m^3/mol

	Vapor Pressure	vapr	5.25E-07	torr

Solubility	sol	6000	mg/L

Kd	Kd

mg/L

Koc	Koc	17.79	mg/L

Photolysis half-life	kdp	25.4	days	Half-life

	Aerobic Aquatic Metabolism	kbacw	151.6	days	Halfife

	Anaerobic Aquatic Metabolism	kbacs

days	Halfife

	Aerobic Soil Metabolism	asm	75.8	days	Halfife

	Hydrolysis:	pH 7	0	days	Half-life

	Method:	CAM	2	integer	See PRZM manual

Incorporation Depth:	DEPI	0	cm

Application Rate:	TAPP	0.31	kg/ha

Application Efficiency:	APPEFF	0.99	fraction

Spray Drift	DRFT	0.063	fraction of application rate applied to pond

Application Date	Date	15-5	dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17:	FILTRA

	IPSCND	1

UPTKF

Record 18:	PLVKRT

	PLDKRT

	FEXTRC	0.5

	Flag for Index Res. Run	IR	IR

	Flag for runoff calc.	RUNOFF	total	none, monthly or total(average of
entire run)

stored as GAPecan.out					

Chemical: Spirodiclofen						

PRZM environment: GAPecansC.txt

EXAMS environment: ir298.exv			

Metfile: w93805.dvf		

Water segment concentrations (ppb)

	Year	Peak	96 hr	21 Day	60 Day	90 Day	Yearly

	1961	1.36	1.30	1.18	0.92	0.76	0.25

	1962	1.37	1.32	1.16	1.02	0.87	0.29

	1963	7.05	6.86	6.09	4.61	3.80	1.23

	1964	2.65	2.56	2.24	1.71	1.51	0.56

	1965	2.73	2.64	2.33	1.78	1.56	0.56

	1966	7.32	7.10	6.26	4.75	3.91	1.28

	1967	17.53	17.00	14.93	11.29	9.30	3.03

	1968	1.48	1.43	1.36	1.07	0.89	0.40

	1969	2.59	2.51	2.22	1.69	1.39	0.45

	1970	1.48	1.43	1.31	1.11	0.93	0.32

	1971	2.10	2.04	1.80	1.41	1.17	0.39

	1972	3.86	3.75	3.33	2.56	2.11	0.68

	1973	4.88	4.73	4.17	3.15	2.59	0.88

	1974	14.20	13.77	12.11	9.19	7.58	2.45

	1975	2.97	2.89	2.57	1.98	1.64	0.61

	1976	2.23	2.16	1.92	1.51	1.26	0.43

	1977	5.55	5.38	4.71	3.54	2.91	0.99

	1978	1.40	1.36	1.23	0.96	0.79	0.30

	1979	5.28	5.12	4.51	3.51	2.92	0.97

	1980	2.85	2.78	2.46	1.88	1.57	0.54

	1981	1.38	1.34	1.18	0.92	0.77	0.27

	1982	2.77	2.69	2.39	1.86	1.59	0.53

	1983	16.86	16.36	14.42	10.96	9.02	2.88

	1984	3.50	3.43	3.04	2.31	1.95	0.74

	1985	1.64	1.59	1.42	1.17	0.98	0.34

	1986	2.71	2.63	2.31	1.79	1.49	0.49

	1987	5.83	5.65	4.98	3.80	3.13	1.01

	1988	1.39	1.35	1.20	0.91	0.75	0.27

	1989	3.50	3.40	3.00	2.28	1.92	0.63

	1990	1.38	1.34	1.18	0.92	0.77	0.27

Sorted results

Prob.	Peak	96 hr	21 Day	60 Day	90 Day	Yearly

	0.03	17.53	17.00	14.93	11.29	9.30	3.03

	0.06	16.86	16.36	14.42	10.96	9.02	2.88

	0.10	14.20	13.77	12.11	9.19	7.58	2.45

	0.13	7.32	7.10	6.26	4.75	3.91	1.28

	0.16	7.05	6.86	6.09	4.61	3.80	1.23

	0.19	5.83	5.65	4.98	3.80	3.13	1.01

	0.23	5.55	5.38	4.71	3.54	2.92	0.99

	0.26	5.28	5.12	4.51	3.51	2.91	0.97

	0.29	4.88	4.73	4.17	3.15	2.59	0.88

	0.32	3.86	3.75	3.33	2.56	2.11	0.74

	0.35	3.50	3.43	3.04	2.31	1.95	0.68

	0.39	3.50	3.40	3.00	2.28	1.92	0.63

	0.42	2.97	2.89	2.57	1.98	1.64	0.61

	0.45	2.85	2.78	2.46	1.88	1.59	0.56

	0.48	2.77	2.69	2.39	1.86	1.57	0.56

	0.52	2.73	2.64	2.33	1.79	1.56	0.54

	0.55	2.71	2.63	2.31	1.78	1.51	0.53

	0.58	2.65	2.56	2.24	1.71	1.49	0.49

	0.61	2.59	2.51	2.22	1.69	1.39	0.45

	0.65	2.23	2.16	1.92	1.51	1.26	0.43

	0.68	2.10	2.04	1.80	1.41	1.17	0.40

	0.71	1.64	1.59	1.42	1.17	0.98	0.39

	0.74	1.48	1.43	1.36	1.11	0.93	0.34

	0.77	1.48	1.43	1.31	1.07	0.89	0.32

	0.81	1.40	1.36	1.23	1.02	0.87	0.30

	0.84	1.39	1.35	1.20	0.96	0.79	0.29

	0.87	1.38	1.34	1.18	0.92	0.77	0.27

	0.90	1.38	1.34	1.18	0.92	0.77	0.27

	0.94	1.37	1.32	1.18	0.92	0.76	0.27

	0.97	1.36	1.30	1.16	0.91	0.75	0.25

0.10	13.51	13.10	11.53	8.75	7.21	2.34

Average of yearly averages:	0.80

Inputs generated by pe4.pl - 8-August-2003

Data used for this run:					

Output File: GAPecan					Metfile:	w93805.dvf					

PRZM scenario:	GAPecansC.txt					

EXAMS environment file:	ir298.exv

Chemical Name:	Spirodiclofen						

Description	Variable Name	Value	Units	Comments

Molecular weight	mwt	411.4	g/mol

Henry's Law Const.	henry

atm-m^3/mol

	Vapor Pressure	vapr	5.25E-07	torr

Solubility	sol	6000	mg/L

Kd	Kd

mg/L

Koc	Koc	17.79	mg/L

Photolysis half-life	kdp	25.4	days	Half-life

	Aerobic Aquatic Metabolism	kbacw	151.6	days	Halfife

	Anaerobic Aquatic Metabolism	kbacs

days	Halfife

	Aerobic Soil Metabolism	asm	75.8	days	Halfife

	Hydrolysis:	pH 7	0	days	Half-life

	Method:	CAM	2	integer	See PRZM manual

Incorporation Depth:	DEPI	0	cm

Application Rate:	TAPP	0.59	kg/ha

Application Efficiency:	APPEFF	0.99	fraction

Spray Drift	DRFT	0.063	fraction of application rate applied to pond

Application Date	Date	15-5	dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17:	FILTRA

	IPSCND	1

UPTKF

Record 18:	PLVKRT

	PLDKRT

	FEXTRC	0.5

	Flag for Index Res. Run	IR	IR

	Flag for runoff calc.	RUNOFF	total	none, monthly or total(average of
entire run)

stored as GApeach.out					

Chemical: Spirodiclofen						

PRZM environment: GAPeachesC.txt

EXAMS environment: ir298.exvMetfile: w03813.dvf		

Water segment concentrations (ppb)

	Year	Peak	96 hr	21 Day	60 Day	90 Day	Yearly

	1961	0.71	0.70	0.67	0.60	0.55	0.24

	1962	2.54	2.51	2.36	2.05	1.85	0.86

	1963	2.72	2.68	2.53	2.21	2.00	1.08

	1964	1.13	1.12	1.06	0.92	0.84	0.59

	1965	0.88	0.87	0.83	0.76	0.70	0.40

	1966	1.01	1.00	0.95	0.85	0.77	0.41

	1967	1.44	1.42	1.34	1.18	1.08	0.58

	1968	6.67	6.59	6.27	5.51	5.00	2.29

	1969	1.75	1.74	1.69	1.58	1.50	1.07

	1970	0.98	0.96	0.92	0.81	0.73	0.45

	1971	5.03	4.97	4.72	4.13	3.73	1.66

	1972	1.65	1.63	1.55	1.36	1.33	0.96

	1973	2.53	2.50	2.36	2.06	1.86	0.97

	1974	4.10	4.05	3.83	3.37	3.06	1.52

	1975	1.44	1.42	1.35	1.21	1.11	0.80

	1976	4.55	4.50	4.32	3.84	3.48	1.63

	1977	1.40	1.39	1.31	1.15	1.07	0.80

	1978	0.91	0.90	0.86	0.76	0.69	0.40

	1979	0.84	0.83	0.79	0.70	0.64	0.34

	1980	0.83	0.82	0.78	0.68	0.61	0.32

	1981	1.94	1.91	1.78	1.54	1.39	0.68

	1982	1.04	1.02	0.99	0.88	0.79	0.50

	1983	1.53	1.51	1.43	1.24	1.11	0.58

	1984	2.13	2.11	1.98	1.73	1.56	0.81

	1985	1.03	1.02	0.96	0.84	0.76	0.49

	1986	0.85	0.84	0.80	0.69	0.62	0.34

	1987	0.83	0.81	0.77	0.74	0.69	0.36

	1988	0.85	0.84	0.80	0.71	0.65	0.36

	1989	0.84	0.83	0.79	0.69	0.63	0.34

	1990	0.83	0.82	0.78	0.68	0.61	0.32

Sorted results

Prob.	Peak	96 hr	21 Day	60 Day	90 Day	Yearly

	0.03	6.67	6.59	6.27	5.51	5.00	2.29

	0.06	5.03	4.97	4.72	4.13	3.73	1.66

	0.10	4.55	4.50	4.32	3.84	3.48	1.63

	0.13	4.10	4.05	3.83	3.37	3.06	1.52

	0.16	2.72	2.68	2.53	2.21	2.00	1.08

	0.19	2.54	2.51	2.36	2.06	1.86	1.07

	0.23	2.53	2.50	2.36	2.05	1.85	0.97

	0.26	2.13	2.11	1.98	1.73	1.56	0.96

	0.29	1.94	1.91	1.78	1.58	1.50	0.86

	0.32	1.75	1.74	1.69	1.54	1.39	0.81

	0.35	1.65	1.63	1.55	1.36	1.33	0.80

	0.39	1.53	1.51	1.43	1.24	1.11	0.80

	0.42	1.44	1.42	1.35	1.21	1.11	0.68

	0.45	1.44	1.42	1.34	1.18	1.08	0.59

	0.48	1.40	1.39	1.31	1.15	1.07	0.58

	0.52	1.13	1.12	1.06	0.92	0.84	0.58

	0.55	1.04	1.02	0.99	0.88	0.79	0.50

	0.58	1.03	1.02	0.96	0.85	0.77	0.49

	0.61	1.01	1.00	0.95	0.84	0.76	0.45

	0.65	0.98	0.96	0.92	0.81	0.73	0.41

	0.68	0.91	0.90	0.86	0.76	0.70	0.40

	0.71	0.88	0.87	0.83	0.76	0.69	0.40

	0.74	0.85	0.84	0.80	0.74	0.69	0.36

	0.77	0.85	0.84	0.80	0.71	0.65	0.36

	0.81	0.84	0.83	0.79	0.70	0.64	0.34

	0.84	0.84	0.83	0.79	0.69	0.63	0.34

	0.87	0.83	0.82	0.78	0.69	0.62	0.34

	0.90	0.83	0.82	0.78	0.68	0.61	0.32

	0.94	0.83	0.81	0.77	0.68	0.61	0.32

	0.97	0.71	0.70	0.67	0.60	0.55	0.24

0.10	4.50	4.45	4.27	3.79	3.44	1.62

Average of yearly averages:	0.74

Inputs generated by pe4.pl - 8-August-2003			

Data used for this run:					

Output File: GApeach					

Metfile:	w03813.dvf					

PRZM scenario:	GAPeachesC.txt					

EXAMS environment file:	ir298.exv

Chemical Name:	Spirodiclofen						

Description	Variable Name	Value	Units	Comments

Molecular weight	mwt	411.4	g/mol

Henry's Law Const.	henry

atm-m^3/mol

	Vapor Pressure	vapr	5.25E-07	torr

Solubility	sol	6000	mg/L

Kd	Kd

mg/L

Koc	Koc	17.79	mg/L

Photolysis half-life	kdp	25.4	days	Half-life

	Aerobic Aquatic Metabolism	kbacw	151.6	days	Halfife

	Anaerobic Aquatic Metabolism	kbacs

days	Halfife

	Aerobic Soil Metabolism	asm	75.8	days	Halfife

	Hydrolysis:	pH 7	0	days	Half-life

	Method:	CAM	2	integer	See PRZM manual

Incorporation Depth:	DEPI	0	cm

Application Rate:	TAPP	0.31	kg/ha

Application Efficiency:	APPEFF	0.99	fraction

Spray Drift	DRFT	0.063	fraction of application rate applied to pond

Application Date	Date	15-5	dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17:	FILTRA

	IPSCND	1

UPTKF

Record 18:	PLVKRT

	PLDKRT

	FEXTRC	0.5

	Flag for Index Res. Run	IR	IR

	Flag for runoff calc.	RUNOFF	total	none, monthly or total(average of
entire run)

stored as CAgrape.out					

Chemical: Spirodiclofen						

PRZM environment: CAgrapesC.txt

EXAMS environment: ir298.exv	

Metfile: w93193.dvf		

Water segment concentrations (ppb)

	Year	Peak	96 hr	21 Day	60 Day	90 Day	Yearly

	1961	1.36	1.34	1.30	1.18	1.09	0.54

	1962	1.91	1.90	1.84	1.68	1.56	0.98

	1963	1.90	1.89	1.83	1.68	1.57	0.99

	1964	1.93	1.91	1.85	1.70	1.58	1.03

	1965	2.02	2.00	1.93	1.78	1.66	1.09

	1966	1.95	1.93	1.86	1.69	1.57	1.00

	1967	1.91	1.89	1.83	1.67	1.54	0.96

	1968	1.89	1.87	1.81	1.64	1.51	1.05

	1969	2.19	2.17	2.09	1.92	1.78	1.21

	1970	1.98	1.96	1.89	1.72	1.58	1.03

	1971	2.08	2.07	2.00	1.88	1.75	1.11

	1972	2.02	2.00	1.91	1.85	1.73	1.11

	1973	1.99	1.97	1.90	1.71	1.58	1.04

	1974	1.92	1.91	1.84	1.67	1.54	1.01

	1975	2.05	2.03	1.96	1.79	1.66	1.10

	1976	1.98	1.96	1.89	1.73	1.61	1.06

	1977	1.97	1.96	1.90	1.72	1.59	1.02

	1978	1.91	1.89	1.82	1.66	1.58	1.18

	1979	2.28	2.26	2.17	1.97	1.81	1.26

	1980	1.95	1.93	1.87	1.71	1.58	1.00

	1981	1.88	1.87	1.80	1.61	1.47	0.91

	1982	1.84	1.83	1.76	1.62	1.50	1.04

	1983	2.16	2.14	2.07	1.88	1.74	1.18

	1984	1.93	1.91	1.84	1.66	1.52	0.95

	1985	1.82	1.81	1.74	1.56	1.43	0.87

	1986	1.81	1.80	1.73	1.56	1.43	0.87

	1987	5.97	5.92	5.69	5.14	4.77	2.45

	1988	2.94	2.92	2.83	2.58	2.37	1.81

	1989	2.12	2.10	2.03	1.85	1.70	1.20

	1990	3.74	3.71	3.55	3.19	2.93	1.70

Sorted results

Prob.	Peak	96 hr	21 Day	60 Day	90 Day	Yearly

	0.03	5.97	5.92	5.69	5.14	4.77	2.45

	0.06	3.74	3.71	3.55	3.19	2.93	1.81

	0.10	2.94	2.92	2.83	2.58	2.37	1.70

	0.13	2.28	2.26	2.17	1.97	1.81	1.26

	0.16	2.19	2.17	2.09	1.92	1.78	1.21

	0.19	2.16	2.14	2.07	1.88	1.75	1.20

	0.23	2.12	2.10	2.03	1.88	1.74	1.18

	0.26	2.08	2.07	2.00	1.85	1.73	1.18

	0.29	2.05	2.03	1.96	1.85	1.70	1.11

	0.32	2.02	2.00	1.93	1.79	1.66	1.11

	0.35	2.02	2.00	1.91	1.78	1.66	1.10

	0.39	1.99	1.97	1.90	1.73	1.61	1.09

	0.42	1.98	1.96	1.90	1.72	1.59	1.06

	0.45	1.98	1.96	1.89	1.72	1.58	1.05

	0.48	1.97	1.96	1.89	1.71	1.58	1.04

	0.52	1.95	1.93	1.87	1.71	1.58	1.04

	0.55	1.95	1.93	1.86	1.70	1.58	1.03

	0.58	1.93	1.91	1.85	1.69	1.58	1.03

	0.61	1.93	1.91	1.84	1.68	1.57	1.02

	0.65	1.92	1.91	1.84	1.68	1.57	1.01

	0.68	1.91	1.90	1.84	1.67	1.56	1.00

	0.71	1.91	1.89	1.83	1.67	1.54	1.00

	0.74	1.91	1.89	1.83	1.66	1.54	0.99

	0.77	1.90	1.89	1.82	1.66	1.52	0.98

	0.81	1.89	1.87	1.81	1.64	1.51	0.96

	0.84	1.88	1.87	1.80	1.62	1.50	0.95

	0.87	1.84	1.83	1.76	1.61	1.47	0.91

	0.90	1.82	1.81	1.74	1.56	1.43	0.87

	0.94	1.81	1.80	1.73	1.56	1.43	0.87

	0.97	1.36	1.34	1.30	1.18	1.09	0.54

0.10	2.88	2.85	2.76	2.52	2.32	1.66

Average of yearly averages:	1.12

Inputs generated by pe4.pl - 8-August-2003			

Data used for this run:					

Output File: CAgrape					

Metfile:	w93193.dvf					

PRZM scenario:	CAgrapesC.txt					

EXAMS environment file:	ir298.exv

Chemical Name:	Spirodiclofen						

Description	Variable Name	Value	Units	Comments

Molecular weight	mwt	411.4	g/mol

Henry's Law Const.	henry

atm-m^3/mol

	Vapor Pressure	vapr	5.25E-07	torr

Solubility	sol	6000	mg/L

Kd	Kd

mg/L

Koc	Koc	17.79	mg/L

Photolysis half-life	kdp	25.4	days	Half-life

	Aerobic Aquatic Metabolism	kbacw	151.6	days	Halfife

	Anaerobic Aquatic Metabolism	kbacs

days	Halfife

	Aerobic Soil Metabolism	asm	75.8	days	Halfife

	Hydrolysis:	pH 7	0	days	Half-life

	Method:	CAM	2	integer	See PRZM manual

Incorporation Depth:	DEPI	0	cm

Application Rate:	TAPP	0.59	kg/ha

Application Efficiency:	APPEFF	0.99	fraction

Spray Drift	DRFT	0.063	fraction of application rate applied to pond

Application Date	Date	15-5	dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17:	FILTRA

	IPSCND	1

UPTKF

Record 18:	PLVKRT

	PLDKRT

	FEXTRC	0.5

	Flag for Index Res. Run	IR	IR

	Flag for runoff calc.	RUNOFF	total	none, monthly or total(average of
entire run)

	

Appendix A-2. Truncated PRZM/EXAMS Time-Series Output

stored as FlcitrusTS.out

Chemical: Spirodiclofen

PRZM environment: FLcitrusC.txt	

EXAMS environment: ir298.exv

Time-Seris-Surface Water

Day	Date	Conc (mg/L)

0	1/1/61	0.00E+00

1	1/2/61	0.00E+00

2	1/3/61	0.00E+00

3	1/4/61	0.00E+00

4	1/5/61	0.00E+00

5	1/6/61	0.00E+00

6	1/7/61	0.00E+00

7	1/8/61	0.00E+00

8	1/9/61	0.00E+00

9	1/10/61	0.00E+00

10	1/11/61	0.00E+00

11	1/12/61	0.00E+00

12	1/13/61	0.00E+00

13	1/14/61	0.00E+00

14	1/15/61	0.00E+00

15	1/16/61	0.00E+00

16	1/17/61	0.00E+00

17	1/18/61	0.00E+00

18	1/19/61	0.00E+00

19	1/20/61	0.00E+00

20	1/21/61	0.00E+00

21	1/22/61	0.00E+00

22	1/23/61	0.00E+00

23	1/24/61	0.00E+00

24	1/25/61	0.00E+00

25	1/26/61	0.00E+00

26	1/27/61	0.00E+00

27	1/28/61	0.00E+00

28	1/29/61	0.00E+00

29	1/30/61	0.00E+00

30	1/31/61	0.00E+00

**	**	**

**	**	**

**	**	**

**	**	**

10926	12/1/90	1.34E-04

10927	12/2/90	1.33E-04

10928	12/3/90	1.31E-04

10929	12/4/90	1.31E-04

10930	12/5/90	1.29E-04

10931	12/6/90	1.28E-04

10932	12/7/90	1.26E-04

10933	12/8/90	1.25E-04

10934	12/9/90	1.24E-04

10935	12/10/90	1.23E-04

10936	12/11/90	1.21E-04

10937	12/12/90	1.20E-04

10938	12/13/90	1.19E-04

10939	12/14/90	1.17E-04

10940	12/15/90	1.17E-04

10941	12/16/90	1.16E-04

10942	12/17/90	1.14E-04

10943	12/18/90	1.13E-04

10944	12/19/90	1.12E-04

10945	12/20/90	1.10E-04

10946	12/21/90	1.10E-04

10947	12/22/90	1.09E-04

10948	12/23/90	1.08E-04

10949	12/24/90	1.06E-04

10950	12/25/90	1.05E-04

10951	12/26/90	1.04E-04

10952	12/27/90	1.04E-04

10953	12/28/90	1.03E-04

10954	12/29/90	1.01E-04

10955	12/30/90	1.00E-04

10956	12/31/90	9.92E-05

10957	1/1/91	9.83E-05

APPENDIX  A-3.  SCIGROW OUTPUT FILE

                        SCIGROW

                          VERSION 2.3

            ENVIRONMENTAL FATE AND EFFECTS DIVISION

                 OFFICE OF PESTICIDE PROGRAMS

             U.S. ENVIRONMENTAL PROTECTION AGENCY

                        SCREENING MODEL

                FOR AQUATIC PESTICIDE EXPOSURE

 

 SciGrow version 2.3

 chemical:Spirodiclofen

 time is 12/ 7/2004  10:21:48

 -----------------------------------------------------------------------
-

  Application      Number of       Total Use    Koc      Soil Aerobic

  rate (lb/acre)  applications   (lb/acre/yr)  (ml/g)   metabolism
(days)

 -----------------------------------------------------------------------
-

      0.530           1.0           0.530      1.57E+01       25.7

 -----------------------------------------------------------------------
-

 groundwater screening cond (ppb) =   4.35E-01 

 ***********************************************************************
*

 

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APPENDIX B.  Half-life Calculation Methods for Spirodiclofen Total
Residue Analysis

First-order linear regression analysis

Half-lives were calculated using natural log-transformed (weighted)
concentration data from all samples that were greater than the detection
limit and using all sampling intervals.  A regression line is fitted for
the data using the first-order two-parameter linear regression equation:

y = -bx + a

where a is the y-intercept and b is the rate constant (slope).

For spirdiclofen total residues of concern, the concentrations of
spirodiclofen, and its -enol, 

-dihydroxy, and -ketohydroxy transformation products were summed.  Not
all transformation products were identified and quantified in all
studies.

((((( PAGE  5 ((((( NUMPAGES  29 

 PAGE  29