This report provides an overview of the U.S. Geological Survey National Water-Quality Assessment program and National Stream Quality Accounting Network findings for pesticide occurrence in U.S. streams and rivers during 2002?11 and compares them to findin
Stone, Wesley W. wwstone@usgs.gov,Gilliom, Robert J. rgilliom@usgs.gov,Martin, Jeffrey D. jdmartin@usgs.gov. An overview comparing results from two decades of monitoring for pesticides in the Nation???s streams and rivers, 1992-2001 and 2002-2011. 2014-01-01.