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Biology - Contaminant Biology Program

Contaminated Habitats

Mercury, metals, hazardous waste, and other pollutants can adversely affect an entire habitat and its resident species. The U.S. Geological Survey (USGS) studies contaminated habitats to evaluate the extent of risk and harm, determine causative factors, develop options for remediation and restoration, and monitor the success of restoration at a site. Projects on contaminated habitats are generally local in scope, although results and conclusions are sometimes transferable to other, similarly contaminated sites. The complexity of these studies often requires multiple lines of evidence to determine cause and effect and require investigators to study a wide range of taxa using many different tools. Laboratory work supports field studies to evaluate effects of contaminants under controlled conditions and to eliminate extraneous variables.  USGS research supports State Total Maximum Daily Loads (TMDL) programs, Federal Natural Resource Damage Assessment and restoration and cleanup activities.

The Contaminant Biology Program focuses on the following five types of contaminated sites:

Hazardous Waste Sites

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Contaminants on the Department of the Interior (DOI) Lands

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Agricultural Areas, Rangeland, and Forests

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Mining, Metals, Mercury, and Energy Development

Mercury (the list below is identical to the one presented on a separate Mercury page of this Web site)

Mining

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Urban Environments

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Computer dump

Computer dump - an example of hazardous waste site. USGS Columbia Environmental Research Center is investigating potential PBDE soil and water pollution from used computer equipment, subjected to a decade of weathering.

Photo Source: Brominated Flame Retardants in the Environment. Fact sheet,USGS CERC

 

 

Acid Steam
Photo by D. Hardesty, USGS

Streams affected by acid mine drainage can be recognized by the reddish-orange color - the sign of high level of iron precipitates.

Photo Source: Biology in Focus: New Hopes for Acid Srtream. Fact sheet, USGS Leetown Sceince Center

 

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Page Last Modified: Wednesday, 15-Oct-2008 07:21:06 MDT