USGS - science for a changing world

Environmental Health - Toxic Substances

Research Projects

The Toxic Substances Hydrology Program conducts research on three categories of contamination issues:

Subsurface Point-Source Contamination

Contaminated Site Management and Remediation

Watershed- and Regional-Scale Contamination

Other Fundamental Research and Methods Development

     
Map of Toxics Program Study Sites
Locations of Toxics Program Investigations
(Click on map for larger version)

Springs in abandoned mine lands can have high concentrations of metals, such as this one in the St. Kevin Gulch Watershed, Colo. The yellow-orange color is due to iron hydroxide precipitates from the acidic, metal-rich water in the spring
Springs in abandoned mine lands can have high concentrations of metals, such as this one in the St. Kevin Gulch Watershed, Colo. The yellow-orange color is due to iron hydroxide precipitates from the acidic, metal-rich water in the spring -- from the Hardrock Mining in Rocky Mountain Terrain -- Upper Arkansas River, Colorado Photo Gallery

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Page Last Modified: Tuesday, 06-May-2014 14:36:53 EDT