USGS - science for a changing world

Environmental Health - Toxic Substances

Crosscutting Topics


Field and laboratory environmental measurement methods

The U.S. Geological Survey (USGS) Toxic Substances Hydrology Program develops field methods to measure a wide range of environmental properties, and develops approaches and protocols used to assess or characterize contamination.

The Program also develops laboratory analytical methods to measure a wide variety of chemicals in environmental media.

The BAT3 supported from a truck-mounted winch.
The BAT3 supported from a truck-mounted winch as it is being prepared for installation in a borehole. Shown in the photograph are (A) inflatable packers, (B) transducer shrouds, (C) pump shroud, and (D) fluid-injection shroud. Tubing and wires (E) used to control the downhole equipment extend from the transducer shrouds -- from the BAT3 Photo Gallery/afs/ -- from the Benthic Flux of Dissolved Metals Photo Gallery


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