Document ID: EPA-HQ-OPP-2013-0749-0002
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2014-03-28T04:00Z

Aminopyralid (005100, 005209, 005219) Screening Level Usage Analysis
(SLUA) Date: March 18, 2014

What is a Screening Level  Usage Analysis  (SLUA)?

o Available estimates of pesticide usage data for a particular active
ingredient that is used on agricultural crops in the United States.

o Pesticide usage data obtained from various sources.  The data are then
merged, averaged, and rounded so that the presented information is not
proprietary, business confidential, or trade secret.

What does it contain?

o Pesticide usage data for a single active ingredient only.

oAgricultural  use sites (crops) that the pesticide is reported to be
used on. 	.

o Available pesticide usage information from U.S. states that produce
80% or more of a crop, in most cases, or less than 80%, in rare cases,
depending on the scope of the survey and available resources.

o Annual percent of crop treated (average & maximum) for each
agricultural  crop.

o Average annual pounds of the pesticide applied for each agricultural 
crop (i.e., forthe states surveyed, not for the entire United States).

What assum ptions canI make abou t the reported data?

o Average  pou nds of active  ingredient applied- Values are calculated 
by merging pesticide usage data sources together; averaging across all
observations, then rounding.  Note:  If the estimated value is

less than 500, then that value is labeled <500.  Estimated values
between 500 & <1,000,000 are rounded to 1 significant digit.  Estimated
values of 1,000,000 or greater are rounded to 2 significant digits.)

o Average percent of crop  treated - Values are calculated by merging
data sources together; averaging by year, averaging across all years, &
rounding to the nearest multiple of 5.  Note:  If the estimated value is
less than 2.5, then the value is labeled <2.5. If the estimated  value
is less than 1, then the

value is labeled <1.

o Maximum percent of crop treated- Value is the single maximum value
reported across all data sources, across all years, & rounded up to the
nearest multiple of 5.  Note:  If the estimated value is less than 2.5,
then the value is labeled <2.5.

Wha t are  the data sou rces used?

o USDA-NASS (United States Department of Agricultu re's National
Agricultural Statistics Service)pesticide usage data from 2004 to 2012.

o Private pesticide market resea rch- pesticide usage data from 2004 to
2012.

o California Department of Pesticide Regu lation  (DPR) Pesticide Use
Reporting (PUR)  data for

2004 to 2011.

What  are  the limitations to the data?

o Additional registered uses may exist but are not included because the
available surveys do not report usage (e.g., small acreage crops).

o Lack of reported usage data for the pesticide on a crop does not imply
zero usage.

o Usage data on a particular site may be noted in data sources, but not
q uantified. In these instances, the site would not be reported in the
SLUA.

o Non-agricultural use sites (e.g., turf, post-harvest, mosquito
control, etc.) are not reported in the SLUA.

A sepa rate request must be made to receive these estimates.

o Some sites show some use, even though they are not on the label.  This
usage could be due to various factors, including, but not limited
to.Section 18 requests, existing stocks of the chemical, data collection
errors, and experimental use permits (EUPs).

                                                                        
                                                                        
                                                                        
                                                                March
18, 2014

Screening Level Estimates of Agricultural Uses of Aminopyralid (005100,
005209, 005219)

Sorted Alphabetically- Reporting Time:  2004-2012

 

Percent Crop Treated

CropAverage

Lbs. A.I. Applied Ann ually

Average

Maximum1Corn<500<1<2.52Fallow<500<1<2.53Pastu
re90,000<2.5<2.54Wheat1,000<1<2.5

All numbers rounded.

<500 	Less than 500 pounds of active ingredient

<2.5 	Less than 2.5 percent of crop treated

< I	Less than I  percent of crop treated

SLUA data sources include:

USDA-NASS (United States  Department  of Agriculture's  National
Agricultural Statistics Service) Private Pesticide Market Research

These results reOect amal gamated  data developed  by the Agency and are
releasable to the publi c.