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The occurrence, movement, flux, fate, and effects of agricultural chemicals in the U.S. are studied by the U.S. Geological Survey's Research on Pesticides in the Environment (RPE) group. Project researchers are identifying the sources of agricultural chemicals (insecticides, herbicides, fungicides, fertilizers, and others) to the environment and the factors that affect their dispersal from point of application to groundwater, small streams, large rivers, reservoirs, precipitation, and the atmosphere. The overall goal of this research is to collect and synthesize agricultural chemical related water-quality information to help resource managers, policy makers, and the public develop agricultural management practices that protect the region's water resources. This project is part of the U.S. Geological Survey's Toxic Substances Hydrology program, the recent activities of which are described in a USGS fact sheet.

Map of Midcontinent Herbicide Project
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Pesticides in Midwestern Rivers, 1989-2002
  • Pesticide Concentration Data
  • Agricultural Chemical GIS Data

    Herbicides and their Degradates in Ground Water

    Texas Source-Water Susceptibility Assessment

    Glyphosate Reconnaissance, 2002

  • New On-line Publications
  • Bibliography

    Other Information Sources
  • Hypoxia in the Gulf of Mexico
  • Mississippi Basin Nutrient flux and Yield
  • Cotton pesticides in the Mississippi Delta
  • San Francisco Bay Toxics Project
  • Toxic Substances Hydrology Program
  • Kansas Organic Geochemistry Research Group
  • Pesticide National Synthesis Project
  • National Water-Quality Assessment (NAWQA) program
  • National Stream Accounting Network (NASQAN)
  • Amphibian Research and Monitoring (ARMI) program
  • ARMI program WRD page

    U.S. Department of the Interior
    U.S. Geological Survey
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    Last Modified: July 24, 2014
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