USGS - science for a changing world

Environmental Health - Toxic Substances


Other Fundamental Research and Methods Development

TCE plume figure
West to east cross-section of trichloroethylene (TCE) plume. Plume is flowing under Ashumet Pond and discharging to Johns Pond, Cape Cod, Massachusetts. The TCE plume was identified as a branch of the chemical spill-10 (CS-10) plume -- from the Passive-Vapor-Diffusion Sampler Photo Gallery


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



Contaminant Geophysics


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