National Water-Quality Assessment (NAWQA) Project
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Estimation Methods:
Predicting Pesticides in Streams (WARP)
Beginning 2015, the provider of the surveyed pesticide data used to derive the county-level use estimates discontinued making estimates for seed treatment application of pesticides because of complexity and uncertainty. Pesticide use estimates prior to 2015 include estimates with seed treatment application.
1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012
2013-17 County-level pesticide use estimates
2017** without California data
1992-2017 State-level crop group pesticide use estimates
1992-2016 State-level crop group pesticide use estimates (estimates for 2013-16 are preliminary)
*Preliminary estimates are calculated as soon as the data are made available to the U.S. Geological Survey. These estimates are made by using projected county crop acres from the previous Census of Agriculture and are expected to be revised upon availability of updated crop acreages in the following Census of Agriculture.
** These files do not include pesticide use estimates for California. Data for California are obtained from the online Department of Pesticide Regulation-Pesticide Use Reporting (DPR-PUR) database and are typically not available at the time the preliminary pesticide use estimates are generated for the rest of the U.S.
U.S. Department of the Interior | U.S. Geological Survey
URL: http://water.usgs.gov/nawqa/pnsp/usage/maps/county-level/
Page Contact Information: gs-w_nawqa_whq@usgs.gov
Page Last Modified: January 21 2020 08:33:47.
