National Water-Quality Assessment (NAWQA) Program

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Pesticides in U.S. Streams and Rivers: Occurrence and Trends during 1992-2011

A featured article in the Environmental Science and Technology journal summarizes the most comprehensive and long-term assessment of pesticides in U.S. streams and rivers.

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Supporting Reports on Pesticide Occurrence and Trends

cover thumbnailAn Overview Comparing Results from Two Decades of Monitoring for Pesticides in the Nationís Streams and Rivers, 1992-2001 and 2002-2011

Pesticide Trends in Major Rivers of the U.S., 1992-2010

Trends in Pestcide Concentrations in Urban Streams in the U.S., 1992-2008

Annual Pesticide Use Maps, 1992-2012

Estimated Diazinon 2011

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