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Environmental Health - Toxic Substances

The Toxic Substances Hydrology Program provides objective scientific information on environmental contamination to improve characterization and management of contaminated sites, to protect human and environmental health, and to reduce potential future contamination problems. Read more about the Toxics Program

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The Geohealth Newsletter

Volume 12, No. 1, 2015

GeoHealth is the U.S. Geological Survey's Environmental Health Newsletter.

Research Projects
New Publications
Crosscutting Topics

Mercury distribution and mobility at the abandoned Puhipuhi mercury mine, Northland, New Zealand: New Zealand Journal of Geology and Geophysics

Endocrine disrupting alkylphenolic chemicals and other contaminants in wastewater treatment plant effluents, urban streams, and fish in the Great Lakes and upper Mississippi River regions: Science of the Total Environment

Arsenic cycling in hydrocarbon plumes--Secondary effects of natural attenuation: Groundwater

USGS investigations of water produced during hydrocarbon reservoir development: Fact Sheet

High-resolution delineation of chlorinated volatile organic compounds in a dipping, fractured mudstone--Depth- and strata-dependent spatial variability from rock-core sampling: Journal of Contaminant Hydrology

Modeling long-term trends of chlorinated ethene contamination at a public supply well: JAWRA Journal of the American Water Resources Association

More >

Photo Gallery

ports ports ports ports ports ports ports ports ports -- See full caption below
Multilevel well sampling array with over 10,000 subsurface sampling ports at the Cape Cod Site, MA. Several large-scale natural-gradient tracer tests and numerous small-scale tracer tests have been conducted with the array -- from the Tracer Tests Photo Gallery

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