USGS Energy Resources Program Environmental Studies

image of title graphic: hazardous trace elements in petroleum source rocks, related studies

The USGS is investigating numerous sites for selenium toxicity. One recent study by the Minerals Program concerns possible selenium contamination associated with phosphate mining in southeastern Idaho. See "Links" section for additional studies.

Links to Selenium Mobility in the Environment

http://minerals.usgs.gov/west/projects/phosdel.shtml

Study of environmental contaminants associated with phosphate mining in southeast Idaho a multi-institutional multi-disciplinary research effort by the USGS Geologic Division Minerals Program in collaboration with Biology Resources Division, Water Resources Resources, and other Federal and State agencies.

The USGS is studying possible trace element contaminants associated with phosphate mining in the northern Rocky Mountains.

link to site showing image taken from usgs study of selenium contamination related to phosphate mining in southeastern idaho

Comparison of studies in Idaho and at Kesterson NWR shows that these are not simple cases of point-source contamination. Other selenium cycles may exist, and further study is needed to better understand selenium in the enviroment, to address its potential impact on human and animal health, and to better understand other trace elements that pose risks.
(click to view larger image) 55k

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http://geology.wr.usgs.gov/wreg/env/related.html
Contact: Margaret A. Keller (mkeller@usgs.gov)
Western Region Energy Group–Environmental Studies
Modified: July 31, 2002

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