National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

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PB2010113101

Publication Date	1999
Personal Author	Larson, S. J.; Gilliom, R. J.; Capel, P. D.
Page Count	99
Abstract	Water samples from 58 rivers and streams across the United States were analyzed for pesticides as part of the National Water-Quality Assessment Program of the U.S. Geological Survey. The sampling sites represent 37 diverse agricultural basins, 11 urban basins, and 10 basins with mixed land use. Forty-six pesticides and pesticide degradation products were analyzed in approximately 2,200 samples collected from 1992 to 1995. The target compounds account for approximately 70 percent of national agricultural use in terms of the mass of pesticides applied annually. All the target compounds were detected in one or more samples. Herbicides generally were detected more frequently and at higher concentrations than insecticides.
Keywords	Pesticides Streams Water quality Water pollution sampling Herbicides Insecticides Toxicity Rivers Ground water Surface water Water resources Contamination Hydrology Basins Land use Detection Trends National Water Quality Assessment (NWQA)
Source Agency	US Geological Survey
Corporate Authors	Geological Survey, Reston, VA.
Document Type	Technical Report
NTIS Issue Number	201022

Pesticides in Streams of the United States: Initial Results from the National Water Quality Assessment Program.

Pesticides in Streams of the United States: Initial Results from the National Water Quality Assessment Program.
PB2010113101

Publication Date	1999
Personal Author	Larson, S. J.; Gilliom, R. J.; Capel, P. D.
Page Count	99
Abstract	Water samples from 58 rivers and streams across the United States were analyzed for pesticides as part of the National Water-Quality Assessment Program of the U.S. Geological Survey. The sampling sites represent 37 diverse agricultural basins, 11 urban basins, and 10 basins with mixed land use. Forty-six pesticides and pesticide degradation products were analyzed in approximately 2,200 samples collected from 1992 to 1995. The target compounds account for approximately 70 percent of national agricultural use in terms of the mass of pesticides applied annually. All the target compounds were detected in one or more samples. Herbicides generally were detected more frequently and at higher concentrations than insecticides.
Keywords	Pesticides Streams Water quality Water pollution sampling Herbicides Insecticides Toxicity Rivers Ground water Surface water Water resources Contamination Hydrology Basins Land use Detection Trends National Water Quality Assessment (NWQA)
Source Agency	US Geological Survey
Corporate Authors	Geological Survey, Reston, VA.
Document Type	Technical Report
NTIS Issue Number	201022