Publications
Dive into our publications and explore the science from the Environmental Health Program (Toxic Substances Hydrology and Contaminant Biology).
GeoHEALTH-USGS Newsletter
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.
Featured Science Activities
Featured Science Activities
Learn about our Featured Science Activities through our pages that highlight studies, publications, and results.
Filter Total Items: 4095
Use of particle tracking to improve numerical model calibration and to analyze ground-water flow and contaminant migration, Massachusetts Military Reservation, western Cape Cod, Massachusetts Use of particle tracking to improve numerical model calibration and to analyze ground-water flow and contaminant migration, Massachusetts Military Reservation, western Cape Cod, Massachusetts
A steady-state, three-dimensional numerical model coupled with a particle-tracking algorithm was developed to simulate the complex hydrogeologic conditions affecting ground-water flow and contaminant migration in the Cape Cod aquifer beneath the Massachusetts Military Reservation, Massachusetts. The known extents of the contaminant plumes beneath the reservation were incorporated into a...
Authors
John P. Masterson, Donald A. Walter, Jennifer G. Savoie
Comment on "Problems associated with using filtration to define dissolved trace element concentrations in natural water samples" Comment on "Problems associated with using filtration to define dissolved trace element concentrations in natural water samples"
No abstract available.
Authors
Alan M. Shiller, Howard E. Taylor
The toxicity of selected gasoline components to glucose methanogenesis by aquifer microorganisms The toxicity of selected gasoline components to glucose methanogenesis by aquifer microorganisms
Six model hydrocarbons, representing various classes of chemicals found in gasoline, and methyl ethyl ketone, were assayed for their inhibitory effect on glucose methanogenesis in slurries prepared from aquifer sediments and ground water. Biogas (CH4and CO2) production was monitored with an automated pressure transducer system. Benzene, 1-methyl naphthalene, and methyltert-butyl ether...
Authors
Melanie R. Mormile, Joseph M. Suflita
Summary of research results on bacterial degradation of trifluoroacetate (TFA), October, 1993 - October, 1995 Summary of research results on bacterial degradation of trifluoroacetate (TFA), October, 1993 - October, 1995
No abstract available.
Authors
Leah J. Matheson, J.R. Guidetti, P.T. Visscher, J.K. Schaefer, R.S. Oremland
Simulation of ground-water flow paths and traveltime in relation to tritium and aldicarb concentrations in the upper glacial aquifer on the North Fork, Long Island, New York Simulation of ground-water flow paths and traveltime in relation to tritium and aldicarb concentrations in the upper glacial aquifer on the North Fork, Long Island, New York
No abstract available.
Authors
D. E. Bohn-Buxton, H. T. Buxton, V. K. Eagen
Concentrations and loads of selected trace elements and other constituents in the Rio Grande in the vicinity of Albuquerque, New Mexico, 1994 Concentrations and loads of selected trace elements and other constituents in the Rio Grande in the vicinity of Albuquerque, New Mexico, 1994
The Pueblo of Isleta and the New Mexico Environment Department have established water-quality standards for the Rio Grande, which flows through Albuquerque, New Mexico. Trace-element concentrations historically have been greater than maximum permissible concentrations allowed by these standards. It is not known if these concentrations are due to sources from the Albuquerque metropolitan...
Authors
Todd Kelly, Howard E. Taylor
Preliminary geochemical studies of pollutant and natural organic compounds in sediments from Sonoma Baylands; a wetland restoration project in San Francisco Bay, California Preliminary geochemical studies of pollutant and natural organic compounds in sediments from Sonoma Baylands; a wetland restoration project in San Francisco Bay, California
No abstract available.
Authors
Frances D. Hostettler, Wilfred E. Pereira, Keith A. Kvenvolden, David R. Jones, Fred Murphy
Laboratory and quality assurance protocols for the analysis of herbicides in ground water from the Management Systems Evaluation Area, Princeton, Minnesota Laboratory and quality assurance protocols for the analysis of herbicides in ground water from the Management Systems Evaluation Area, Princeton, Minnesota
Laboratory and quality assurance procedures for the analysis of ground-water samples for herbicides at the Management Systems Evaluation Area near Princeton, Minnesota are described. The target herbicides include atrazine, de-ethylatrazine, de-isopropylatrazine, metribuzin, alachlor, 2,6-diethylaniline, and metolachlor. The analytical techniques used are solid-phase extraction, and...
Authors
S.J. Larson, P. D. Capel, A.G. VanderLoop
Hydrology and geochemistry of aquifer and stream contamination related to acidic water in Pinal Creek basin near Globe, Arizona Hydrology and geochemistry of aquifer and stream contamination related to acidic water in Pinal Creek basin near Globe, Arizona
Hydrologic and geochemical research has identified and characterized the physical and chemical processes that control the evolution and movement of metal contaminants in ground water beneath Miami Wash and lower Pinal Creek. The dissolution of calcite in the alluvial aquifer has slowed and neutralized part of the acidic plume, and the sorption of some metals such as nickel and copper to...
Authors
James G. Brown, Barbara O. Favor
Ground-water-quality assessment of the central Oklahoma Aquifer, Oklahoma — Geochemical and geohydrologic investigations Ground-water-quality assessment of the central Oklahoma Aquifer, Oklahoma — Geochemical and geohydrologic investigations
Ground-water samples, core samples, and hydrologic measurements were obtained in the Central Oklahoma Aquifer as part of the pilot National Water-Quality Assessment Program. This report examines ground-water recharge and discharge, the potentiometric surface, the chemical and isotopic composition of ground water, and the abundances and textures of minerals in core materials to determine...
Authors
David L. Parkhurst, Scott C. Christenson, George N. Breit
Movement of agricultural chemicals between surface water and ground water, lower Cedar River basin, Iowa Movement of agricultural chemicals between surface water and ground water, lower Cedar River basin, Iowa
Movement of agricultural chemicals alachlor, atrazine, cyanazine, deethylatrazine, deisopropylatrazine, and metolachlor between surface water and ground water is documented by data collected from May 1989 through July 1991 at an unfarmed study site adjacent to the Cedar River in Iowa. During periods of runoff, these chemicals moved from the Cedar River into the alluvial aquifer with bank...
Authors
Paul J. Squillace, J.P. Caldwell, P.M. Schulmeyer, C.A. Harvey
Factors affecting tritium and 14carbon distributions in the unsaturated zone near the low-level radioactive-waste burial site south of Beatty, Nevada Factors affecting tritium and 14carbon distributions in the unsaturated zone near the low-level radioactive-waste burial site south of Beatty, Nevada
Interpretations of the distributions of tritiated water vapor (HTOV) and 14carbon dioxide gas (14CO2) concentrations in the unsaturated zone adjacent to the low-level radioactive-waste burial site south of Beatty, Nevada, suggest that observed concentrations of 14CO2 could be explained by either diffusive or advective transport of the radioactive gas from the site.The distribution of...
Authors
Robert G. Striegl, David E. Prudic, J. S. Duval, R. W. Healy, E. R. Landa, D.W. Pollock, D.C. Thorstenson, R.P. Weeks