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Environmental Health - Toxic Substances

Investigations

Watershed- and Regional-Scale Contamination

Map of Toxics Program Study Sites
Locations of Toxics Program Watershed- and Regional-Scale Contamination Investigations
(Click on map for larger version)

USGS scientist collecting water samples from Cedar Creek near Pansey, Ala.
USGS scientist collecting water samples for the analysis of pesticides downstream from peanut fields along Cedar Creek near Pansey, Ala. (site ID 02343848) (circa 2003) -- from the Pesticide Contamination in Varied Pesticide-Use Settings Investigation

The Toxics Program conducts watershed- and regional-scale investigations of legacy, current, and emerging contaminants affecting aquatic ecosystems from common types of nonpoint and distributed point-source contamination. More about watershed- and regional-scale contamination investigations.

Investigations

Chemical Mixtures and Environmental Effects

Watershed Contamination from Hard-Rock Mining

Pesticide Contamination in Varied Pesticide-Use Settings

Emerging Contaminants in the Environment

Mercury in Aquatic Ecosystems

Amphibian Research and Monitoring Initiative

Priority Ecosystem Studies

Complete listing of watershed and regional scale investigations and projects >>

Other Watershed- and Regional-Scale Investigations

Watershed- and Regional-Scale Contamination Information

New Publications

Upcoming Publications

  • Challenges for mapping cyanotoxin patterns from remote sensing of cyanobacteria: Stumpf, R.P., Davis, T.W., Wynne, T.T., Graham, J.L., Loftin, K.A., Johengen, T.H., Gossiaux, D., Palladino, D., and Burtner, A., Harmful Algae (IN PRESS).

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Page Last Modified: Thursday, 14-Apr-2016 15:53:26 EDT