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Pesticides in Streams in Part of the Upper Mississippi River Basin, Minnesota and Wisconsin, 1974-94

Fact Sheet 066-00

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Abstract

Analysis of historical pesticide information by the National Water-Quality Assessment (NAWQA) Program indicates that land use and pesticide use affect detections of pesticides in streams in part of the Upper Mississippi River Basin (UMIS). Agricultural pesticide use was greatest in the Minnesota River Basin. Greater than twenty-seven times more herbicides than insecticides were used for agriculture. Pesticide detections were greatest in or downstream of agricultural and urban areas. Herbicides were detected most frequently in stream water; whereas, organochlorine insecticides were detected most frequently in streambed sediment. Most concentrations were below levels considered harmful to human and aquatic health.

Study Area

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Pesticides in Streams in Part of the Upper Mississippi River Basin, Minnesota and Wisconsin, 1974-94
Series title:
Fact Sheet
Series number:
066-00
Edition:
-
Year Published:
2000
Language:
ENGLISH
Publisher:
U.S. Geological Survey
Contributing office(s):
Minnesota Water Science Center
Description:
4 p.
Time Range Start:
1974-01-01
Time Range End:
1994-12-31