USGS - science for a changing world

Environmental Health - Toxic Substances

Methods and Tools

Geophysical Methods

A close-up view of a heat-pulse flow-meter tool
A close-up view of a heat-pulse flow-meter tool. The tool is used to determine the vertical flow-rate of ground water in boreholes at the site. This information is used to determine the hydraulic properties of fractures during ambient and pumping conditions.

Geophysical methods are developed and used to characterize and monitor environmental properties that influence or affect the transport and fate of contaminants in the environment. Emphasis is placed on providing increasingly quantitative spatial and temporal information about subsurface structure and the distribution of contaminants. The tools are used by environmental professionals to more efficiently characterize and manage contaminated sites.

Bibliography

Science Feature Articles

Investigations and Research Activities

USGS scientist lowers borehole radar into a borehole near the Naval Industrial Reserve Ordnance Plant, Fridley, Minnesota
USGS scientist lowers borehole radar into a borehole near the Naval Industrial Reserve Ordnance Plant, Fridley, Minnesota.

New Publications

USGS scientists conducting a ground penetrating radar (GPR) survey at the south subsurface oil pool
USGS scientists conducting a ground penetrating radar (GPR) survey at the south subsurface oil pool at the Bemidji, MN, Crude Oil Spill Research Site.

 

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