UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON D.C., 20460


### MAY 

## 0 1 20\4

OFFICE OF CHEMICAL SAFETY AND POLLUTION PREVENTION

MEMORANDUM

SUBJECT:
FROM:

THRU:

TO: Usage Report in Support ofChlorpyrifos (059101) JihadAlsadek,PhD,Economist

# ~~~It-~ Science and InformationAnalysis Branch Biological and Economic Analysis Division (7503P)
Steve Jarboe, Team leader

...

## .J....-----' Science Information and Analysis Branch Biological and Economic Analysis Division (7503P)
Joe Wolf, Chemical ReviewManager Risk Management and ImplementationBranch 2 Pesticide Re-evaluation Division (7508P)
This memorandumtransmits

## an update ofthe Screening Level Usage Analysis (SLUA) report for Chlorpyrifos that was done in 2012. The usage datainthe updated SLUA are an amalgamation ofUSDA/NASS and Private Pesticide MarketResearch data from 2004 to 2012. The new SLUA. (2014) shows an increase inusage on alfalfa, asparagus, cabbage, lettuce, peanuts, greenpeas, pistachios, tomatoes, watermelons and wheat and a decrease inuse on almonds, apples, cantaloupes, com, cotton, dry beans/peas, grapefruit, lemons, nectarines, sorghum, tobacco and walnuts. Newuses showed up inthe newer SLUA onBrussels sprouts, canola, cotton seed treatment, peppers, sorghum seedtreatments, soybean seed treatments and wheat seed treatments. Some crops (carrots, figs and spinach) were in the old SLUA and dropped offinthe updated SLUA The use on cantaloupes, lettuce, pistachios, squash, tomatoes and watermelons are denotedbya 

### "+" sign inthe SLUAto showthatthese crops are not known to be listed on active end use productregistrations oras Section 18 emergency exemptions when this SLUAreport was run. For questions, comments and otherusage informationrequests, please contactme at 703- 308-8140.

### Chlorpyrifos (059101) ScreeningLevel Usage Analysis (SLUA) Date: May 1, 2014
Whatis a ScreeningLevel Usage Analysis (SLUA)? • Available estimates ofpesticide usage data for a particular active ingredientthat is used on 

### agricultural crops in the United States. • Pesticide usage data obtained from various sources. The data are then merged, averaged, and rounded so thatthe presented information is not proprietary, business confidential, ortrade secret. 

### What does it contain? • Pesticide usage data for a 

### single active ingredient only. • Agricultural use sites (crops) thatthe pesticide is reportedto be used on. • Available pesticide usage information from U.S. states thatproduce 80% ormore ofa crop, inmost cases, or less than 80%, inrare cases, depending onthe scope ofthe survey and available resources. • Annual percent ofcrop treated 

### (average & 

### maximum) for each agricultural crop. • Average annual pounds ofthe pesticide applied for each agricultural crop (i.e., for the states surveyed, not for the entire United States). 

### What assumptions can I make about the reported data? • Average pounds ofactive ingredient applied- Values are calculated by mergingpesticide usage data sources together; averaging across all observations, then rounding. Note: 

## If the estimatedvalue is less than 500, then thatvalue is labeled <500. Estimatedvalues between 500 & <1,000,000 are roundedto 1 significantdigit. Estimatedvalues of 1,000, 000 orgreater are roundedto 2 significant digits.) 

### • Average percent ofcrop treated- Values are calculated bymerging data sources together; averaging by year, averaging across all years, & rounding to the nearestmultiple of5. Note: 

## If the estimatedvalue is less than 2.5, then the value is labeled <2.5. 

## If the estimatedvalue is less than 1, then the value is labeled <1. 

### • Maximum percent ofcrop treated

- Value is the single maximum value reported across all data sources, across all years, & rounded up to the nearest multiple of5. Note: 

## If the estimatedvalue is less than 2.5, then the value is labeled <2.5. 

### What are the data sources used? • USDA-NASS (United States Department ofAgriculture's National Agricultural Statistics Service)- pesticide usage data from 2004 to 2012. 

### • Privatepesticide market research- pesticide usage data from 2004 to 2012. 

### • California DepartmentofPesticideRegulation (DPR) Pesticide Use Reporting (PUR) data for 2004 to 2011. 

### What are the limitations to the data?
• Additional registereduses may exist but are not included because the available surveys do not report usage (e.g., small acreage crops). • Lack ofreported usage data for the pesticide on a crop 

### does not imply zero usage. • Usage data on a particular site maybenoted indata sources, but 

### not quantified. Inthese instances, the site would notbe reported inthe SLUA. • Non-agricultural use sites (e.g., turf, post-harvest, mosquito control, etc.) are not reported inthe SLUA. A separate request must be made to receive these estimates. • Some sites show some use, even though they are not onthe label. This usage could be due to various factors, including, but not limited to Section 18 requests, existing stocks ofthe chemical, data collection errors, and experimental use permits (EUPs).

### Date: May 1, 2014 ScreeningLevel Estimates ofAgricultural Uses ofChlorpyrifos (059101) Sorted Alphabetically Reporting Years: 2004-2012 Average Percent Crop Treated Crop Lbs. A.I. Average Maximum 1 Alfalfa 500,000 5 10 2 Almonds 400,000 25 40 3 Apples 300,000 55 65 4 Aspara2us 20,000 40 60 5 Beans, Green 3,000 <2.5 5 6 Broccoli 90,000 45 60 7 Brussels Sprouts* 4,000 NC NC 8 Cabbage 10,000 15 25 9 Canola 40,000 10 10 10 Cantaloupes+ 2,000 <2.5 5 11 

### Cauliflower 20,000 40 60 12 Cherries 70,000 30 45 13 Corn 1,400,000 <2.5 5 14 Corn (Seed Treatment) <500 <1 <2.5 15 Cotton 90,000 <2.5 <2.5 16 Cotton (Seed Treatment) 1,000 <2.5 5 17 Cucumbers 3,000 <2.5 5 18 DryBeans/Peas 9,000 <2.5 5 19 Grapefruit 50,000 20 35 20 Grapes 200,000 10 20 21 Hazelnuts 7,000 15 25 22 Lemons 80,000 35 60 23 Lettuce+ 4,000 <2.5 <2.5 24 Nectarines 8,000 10 20 25 Onions 60,000 40 50 26 Oranges 500,000 20 35 27 Peaches 60,000 25 40 28 Peanuts 200,000 5 15 29 Pears 20,000 15 30 30 Peas, Green 2,000 <2.5 <2.5 31 Pecans 300,000 30 40 32 Peppers 2,000 <2.5 5 33 Pistachios+ 2,000 <2.5 <2.5 34 Plums/Prunes 20,000 10 15 35 Potatoes 3,000 <1 <2.5 36 Pumpkins 2,000 <2.5 5 37 Sorghum 10,000 <1 <2.5 38**So~hum** 

### (Seed Treatment) <500 <1 <2.5 39 Sovbeans 1.500.000 5 1040 Soybeans_(Seed Treatment)_ <500 <1 <2.5 41 Squash+ 1,000 <2.5 5 42 Strawberries 10,000 20 35 43 Sugar Beets 100,000 10 20 44 Sunflowers 50,000 5 10 45 Sweet Corn 100,000 10 20 46 Tangelos 2,000 10 15 47 Tangerines 7,000 10 20 48 Tobacco 80,000 15 20 49 Tomatoes+ 3,000 <2.5 <2.5 50 Walnuts 400,000 45 55 51 Watermelons+ 1,000 <2.5 <2.5 52 Wheat 400,000 5 10 53 Wheat (Seed Treatment) <500 <1 

### <2.5

All numbers are rounded. <500: less than 500 pounds ofactive ingredients. <2.5: less than 2.5 percent ofcrop is treated. <1: less than 1percent ofcrop is treated

. 

### * Based on CA DPRdata only (80% or more ofU.S. acres grown are in California) NC: not calculated, onlypounds a.i. available.

+: Crops not known to be listed on active end use productregistrations or as Section 18 emergency exemptions when this report was run. SLUA data sources include: USDA-NASS (United States Department ofAgriculture's National Agricultural Statistics Service) Private Pesticide Market Research CaliforniaDPR(Department ofPesticide Regulation) These results reflect amalgamated data developed by the Agency and are releasable to the public.