USGS - science for a changing world

Environmental Health - Toxic Substances

Crosscutting Topics

Methods

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.

BAT3 control equipment. The pressure manifold is used for controlling inflation of packers. The flow meters measure discharge or injection rates during aquifer tests and geochemical sampling. A laptop PC is used for real-time monitoring of hydraulic head and discharge data
BAT3 control equipment. The pressure manifold is used for controlling inflation of packers. The flow meters measure discharge or injection rates during aquifer tests and geochemical sampling. A laptop PC is used for real-time monitoring of hydraulic head and discharge data -- 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

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