USGS - science for a changing world

Environmental Health - Toxic Substances


Pesticide Contamination in Varied Pesticide-Use Settings

A view of Roberts Creek in northeast Iowa.
A view of Roberts Creek (northeastern Iowa) where USGS scientists conducted a study of atrazine (a herbicide) degradation -- from the Agricultural Chemicals in the Upper Midwest Project

Bibliography 550 Publications
Photo Gallery

New pesticides are developed continually, and increasingly, degradation byproducts of legacy and current-use pesticides are discovered. Information on the environmental occurrence of these chemicals is needed to evaluate their potential environmental and human health significance. This project activity has two-fold objectives: (1) develop methods to measure new pesticides and their byproducts in samples of various environmental media at concentrations relevant to assessing their persistence, transport, and fate; and (2) gather information on the environmental occurrence of these chemicals in sensitive and/or susceptible ecosystems near areas of common use of the pesticide, such as areas of similar land use, crop types, and/or farming practices. Pesticide-use studies in selected settings include:

Herbicides and other Agricultural Chemicals -- Midwest Cornbelt

Cotton Agriculture -- Southern United States

Agricultural Chemicals in Ground Water -- Plains, Georgia [Completed]

Transport of Herbicides in Streams and Shallow Ground Water , Cedar River, Iowa [Completed]

Pesticide Related Science Feature Articles

Fact Sheets

[Acrobat Reader]

USGS Home Water Climate Change Science Systems Ecosystems Energy and Minerals Environmental Health Hazards

Accessibility FOIA Privacy Policies and Notices logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information:
Page Last Modified: Tuesday, 04-Aug-2015 15:34:39 EDT