Are agricultural pesticides in surface waters of the central Columbia Plateau?
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Are agricultural pesticides in surface waters of the central Columbia Plateau?

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Published by U.S. Dept. of the Interior, U.S. Geological Survey in [Reston, Va.?] .
Written in English

Subjects:

  • Groundwater -- Pollution -- Washington (State),
  • Agricultural chemicals -- Environmental aspects -- Washington (State),
  • Pesticides -- Environmental aspects -- Washington (State)

Book details:

Edition Notes

SeriesFact sheet -- 241-95, Fact sheet (Geological Survey (U.S.)) -- FS-95-241
ContributionsGeological Survey (U.S.)
The Physical Object
Pagination[4] p. :
ID Numbers
Open LibraryOL14461418M
OCLC/WorldCa35674212

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agricultural drainage basins in the Central Columbia Plateau, Washington 23 7. Summary of pesticide concentrations from two surface-water sites located in dryland agricultural drainage basins in the Central Columbia Plateau, Washington and Idaho 38 by: 7. Agricultural pesticide applications and observed concentrations in surface waters from four drainage basins in the Central Columbia Plateau, Washington and Idaho, Tacoma, Wash.: U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO: Earth Science Information Center, Open-File Reports Section [distributor], (OCoLC) U.S. Geological Survey Are A Agricultural A. i T» Pesticides ^«i in Surfaceo r> Fact Sheet Revised Waters of the Central Columbia Plateau? G YES. Many agricultural pesticides are present at very low concentrations. No pesticides were found at concentrations above regulatory drinking water standards, but some were at concentra­Author: R.J. Wagner, J.C. Ebbert, L.M. Roberts. As part of the U.S. Geological Survey's National Water-Quality Assessment Program, the use and occurrence of agricultural pesticides were investigated in four drainage basins--two dominated by irrigated agriculture and two by dryland agriculture--in the Central Columbia Plateau of eastern Washington. For this study, 85 pesticides or pesticide metabolites were selected for analysis .

8 Water Quality in the Central Columbia Plateau, Washington and Idaho, –95 Figure Sites in the Quincy-Pasco the Central Columbia Plateau result from agricultural practices such as fer- crease transport of pesticides to surface waters. PesticideFile Size: 2MB. As part of the U.S. Geological Survey's National Water-Quality Assessment Program, the use and occurrence of agricultural pesticides were investigated in four drainage basins--two dominated by irrigated agriculture and two by dryland agriculture--in the Central Columbia Plateau of eastern Washington. For this study, 85 pesticides or pesticide. Pesticides in Agricultural Irrigation-Return Flow, Columbia Basin Project, Washington, , Pesticide use in the Central Columbia Plateau: Washington, D.C., National Center for Food and Agricultural Policy, variously paginated. Water quality standards for surface waters of the State of Washington: Washington Administrative Code. The combined table and graph below show concentrations of 14 pesticides detected in public supply wells in the Central Columbia Plateau. This study analyzed primarily agricultural pesticides, as 61 % of the Central Columbia Plateau is agricultural land. For a Author: Sarah J. Ryker, Alex K. Williamson.

Seasonality of Pesticides in Surface Waters. Seasonal patterns of pesticide occurrence in surface waters vary in different areas of the U.S. In Figure 4, examples of several relatively well-documented seasonal patterns are shown. To assess the possible risk that agricultural pesticides have on non-target organisms, samples from surface water, stemflow, and throughfall were collected and analyzed. Using the U.S. EPA's aquatic life benchmark data for freshwater, a table was compiled that included the most sensitive values to be evaluated against the pesticides detected in Cited by: Pesticides Found in Surface Waters. Past studies have detected pesticides in surface waters in all regions of the nation. Of the hundreds of pesticide compounds that have been used in the United States, however, only 98 pesticides and 20 pesticide transformation products were included as analytes in the reviewed studies. Paul D. Capel, Steven J. Larson and Thomas A. Winterstein, The behaviour of 39 pesticides in surface waters as a function of scale, Hydrological Processes, 15, 7, .