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Dive into our publications and explore the science from the Environmental Health Program (Toxic Substances Hydrology and Contaminant Biology).

GeoHEALTH-USGS Newsletter

The GeoHEALTH–USGS Newsletter—published since 2004—provides information on USGS science activities pertinent to safeguarding the health of fish, wildlife, domesticated animals, and people from environmental exposures to contaminants and pathogens.

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January 1, 2003

The geochemical evolution of riparian ground water in a forested piedmont catchment

The principal weathering reactions and their rates in riparian ground water were determined at the Panola Mountain Research Watershed (PMRW) near Atlanta, Georgia. Concentrations of major solutes were measured in ground water samples from 19 shallow wells completed in the riparian (saprolite) aquifer and in one borehole completed in granite, and the apparent age of each sample was calculated from

Authors

Douglas A. Burns, Niel Plummer, Jeffrey J. McDonnell, Eurybiades Busenberg, Gerolamo C. Casile, Carol Kendall, Richard P. Hooper, James E. Freer, Norman E. Peters, Keith Beven, Peter Schlosser

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 2003

History and ecology of chloroethene biodegradation: A review

No abstract available.

Authors

Paul M. Bradley

Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, South Atlantic Water Science Center (SAWSC)

January 1, 2003

Changes in the chemistry of lakes and precipitation in high-elevation national parks in the western United States, 1985–1999

High-elevation lakes in the western United States are sensitive to atmospheric deposition of sulfur and nitrogen due to fast hydrologic flushing rates, short growing seasons, an abundance of exposed bedrock, and a lack of well-developed soils. This sensitivity is reflected in the dilute chemistry of the lakes, which was documented in the U.S. Environmental Protection Agency's Western Lake Survey o

Authors

David W. Clow, James O. Sickman, Robert G. Striegl, David P. Krabbenhoft, John G. Elliott, Mark M. Dornblaser, David A. Roth, Donald H. Campbell

Ecosystems Mission Area, Water Resources Mission Area, Environmental Health Program, Toxic Substances Hydrology, California Water Science Center, Colorado Water Science Center, Upper Midwest Water Science Center, Mercury Research Laboratory

January 1, 2003

Climate science issues and needs of the CALFED Bay-Delta Program

No abstract available.

Authors

M. D. Dettinger, W.A. Bennett, D.R. Cayan, J. Florsheim, M. Hughes, B. L. Ingram, A.D. Jassby, N. Knowles, F. Malamud, D.H. Peterson, K. Redmond, L. Smith

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 2003

Mercury in stream ecosystems -- New studies initiated by the U.S. Geological Survey

Mercury can adversely affect humans and wildlife through consumption of contaminated fish, particularly by sensitive individuals, such as children and women of childbearing age. Mercury is currently the leading cause of impairment in the Nation’s estuaries and lakes and was cited in nearly 80 percent of fish-consumption advisories (2,242 of 2,838) reported by states in 2000. The geographic extent

Authors

Mark E. Brigham, David P. Krabbenhoft, Pixie A. Hamilton

Ecosystems Mission Area, Water Resources Mission Area, Environmental Health Program, Toxic Substances Hydrology, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Mercury Research Laboratory

January 1, 2003

Natural weathering rates of silicate minerals

No abstract available.

Authors

A. F. White

Natural Hazards Mission Area, Ecosystems Mission Area, Earthquake Hazards Program, Toxic Substances Hydrology, Environmental Health Program, Earthquake Science Center

January 1, 2003

Geochemistry of groundwater

No abstract available.

Authors

Christina M. Aiello

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, Western Ecological Research Center (WERC)

January 1, 2003

Questa baseline and pre-mining ground-water quality investigation. 3. Historical ground-water quality for the Red River Valley, New Mexico

Historical ground-water quality data for 100 wells in the Red River Valley between the U.S. Geological Survey streamflow-gaging station (08265000), near Questa, and Placer Creek east of the town of Red River, New Mexico, were compiled and reviewed. The tabulation included 608 water-quality records from 23 sources entered into an electronic database. Groundwater quality data were first collecte

Authors

Sara H. LoVetere, D. Kirk Nordstrom, Ann S. Maest, Cheryl A. Naus

Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 2003

Diurnal variation in trace-metal concentrations in streams

No abstract available.

Authors

David A. Nimick

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 2003

Isotope geochemistry and chronology of offshore ground water beneath Indian River Bay, Delaware

Results of geophysical surveys in Indian River Bay, Delaware, indicate a complex pattern of salinity variation in subestuarine ground water. Fresh ground-water plumes up to about 20 meters thick extending hundreds of meters offshore are interspersed with saline ground water, with varying degrees of mixing along the salinity boundaries. It is possible that these features represent pathways for nutr

Authors

John Karl Böhlke, David E. Krantz

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 2003