Chemical and Pathogenic Contaminant Exposure: Arsenic

Arsenic occurs in the environment naturally and to a lesser degree by anthropogenic sources and activities. The current USEPA drinking water standard for arsenic (Maximum Contaminant Level) is 10 µg/L.

U.S. Geological Survey research on arsenic ranges from environmental and drinking water occurrence studies to detailed investigations on fate, transport and basic geochemistr y as well as collaborative work with the human-health community. y.

In Drinking Water

• New England
• Nevada
• Domestic wells of the United States

Environmental Sources, Occurrence, and Geochemistry

• New England
• Animal agriculture
• National Ground-Water Resources
• Southeast Michigan Aquifers
• Speciation and thermodynamics
• Streambed sediments and benthic organisms
• Microbial transformations of arsenic in the environment

Other Sources of USGS Information on Arsenic

• National Water Quality Assessment Trace Element Synthesis
• USGS Study Group
• New Hampshire Water Science Center projects
• Geomicrobiology of Arsenic

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U.S. Department of the Interior | U.S. Geological Survey
URL: http://health.usgs.gov/dw_contaminants/arsenic.html
Page Contact Information: Herb Buxton
Page Last Modified: 09-Mar-2007@08:22