USGS - science for a changing world

Environmental Health - Toxic Substances

Investigations

Other Fundamental Research and Methods Development

Fully assembled BAT3 with packers spaced to straddle a fracture in a bedrock borehole.
Fully assembled BAT3 with packers (black cylinders) spaced to straddle a fracture in a bedrock borehole -- from the BAT3 Photo Gallery/afs/.usgs.gov/www/toxics/htdocs/photo_gallery/benthic_flux.html -- from the Benthic Flux of Dissolved Metals Photo Gallery

Bibliography

The Toxics Program supports the development of knowledge and methods for the collection, analysis, and interpretation of data related to fundamental questions about contamination in the hydrologic cycle. What is the significance of these activities in relation to the field investigations?

Microbial Geochemistry

Geochemistry

Hydrology

Contaminant Geophysics

Modeling

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