USGS - science for a changing world

Environmental Health - Toxic Substances

Crosscutting Topics

Laboratory Methods

Analytical Laboratory Methods for Environmental Measurements

The U.S. Geological Survey (USGS) Toxic Substances Hydrology (Toxics) Program develops laboratory methods designed to measure a wide range of environmental properties. Methods include:

  • Measurement of the concentration of pesticides and their environmental degradates
  • Laboratory experiments that estimate rates of biodegradation
  • Laboratory methods for the detection and measurement of pharmaceuticals and other organic wastewater compounds in water and soil
  • Measurement of chemical tracers, such as CFCs (chlorofluorocarbons), caffeine, rare earth elements (gadolinium), and/or isotopes that indicate relative age and/or source of water or contamination

The information presented on this page cuts across boundaries of the Toxics Program's individual investigations and projects so that information on the development of analytical methods for environmental measurements can be presented in one place.

Investigations and Research Activities

Fact Sheets

USGS scientists are developing analytical methods for the measurement of pharmaceuticals at environmentally relevant concentrations in water samples. The methods use an instrument that couples liquid chromatography and mass spectrometry (LC/MS/MS). This multifunctional instrument is capable of detecting contaminants at ultra-trace concentrations.
USGS scientists are developing analytical methods for the measurement of pharmaceuticals at environmentally relevant concentrations in water samples. The methods use an instrument that couples liquid chromatography and mass spectrometry (LC/MS/MS). This multifunctional instrument is capable of detecting contaminants at ultra-trace concentrations.
(Click on image for a larger version)

Laboratory equipment used for soil-column experiments on the transport of emerging contaminants through soil
Laboratory equipment used for soil-column experiments on the transport of emerging contaminants through soil
(Click on image for a larger version)

Bibliography

Headlines

Making hydrogen gas measurements in a field laboratory, Bemidji Crude Oil Spill Site, MN. The concentration of hydrogen in ground water is used as an indicator of dominant microbial degradation processes
Making hydrogen gas measurements in a field laboratory, Bemidji Crude Oil Spill Site, MN. The concentration of hydrogen in ground water is used as an indicator of dominant microbial degradation processes
(Click on image for a larger version)

Other Methods Crosscutting Topics Pages

Back To Methods Crosscutting Topic Page
Back To Crosscutting Topics Index Page

USGS Home Water Climate Change Science Systems Ecosystems Energy and Minerals Environmental Health Hazards

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://toxics.usgs.gov/topics/lab_methods.html
Page Contact Information:
Page Last Modified: Thursday, 10-Jan-2013 17:16:51 EST