Glyphosate Herbicide Found in Many Midwestern Streams

Glyphosate Herbicide Found in Many Midwestern Streams, Antibiotics Not Common

A view of a farm fields in Iowa
Glyphosate is frequently applied to corn and soybeans growing areas like these in Iowa. Photo Credit: William A. Battaglin, USGS.

Researchers with the U.S. Geological Survey (USGS) recently investigated 51 streams in nine Midwestern States to determine the presence of a wide range of herbicides, their degradation byproducts and antibiotics. Herbicides were detected in most water samples, which were collected to coincide with runoff events following herbicide application, but antibiotics were detected in only 1 percent of the samples.

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