RedN NAWQA
USGS IN YOUR STATE
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National Water-Quality Assessment Program
Tornes, L.H. and Brigham, M.E., 1995, Pesticide Amounts are Small in
Streams in the Red River of the North Basin, 1993-94: U.S. Geological
Survey Open-File Report 95-283, 2p.
Abstract
Pesticides are used extensively in the largely agricultural Red River of the
North (Red River) Basin, but, unlike many other agricultural basins, only
small amounts are routinely detected in samples from streams in the basin.
The pesticides detected comprise less than 2 percent of the amount applied and
usually are at concentrations far less than established drinking water
standards. Most of the detected pesticides seem to come from sources near the
headwaters in the southern part of the basin. Although low, concentrations
are related to pesticide application and runoff. Flat land slope, organic
soils, pesticide management, and degradation all may limit pesticide
contamination that reaches Red River Basin streams.
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U.S. Department of the Interior |
U.S. Geological Survey