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: 4097
Distribution and occurrence of organic acids in subsurface waters Distribution and occurrence of organic acids in subsurface waters
No abstract available.
Authors
P.D. Lundegard, Yousif K. Kharaka
Three-dimensional D4Z renumbering for iterative solution of ground-water flow and transport equations Three-dimensional D4Z renumbering for iterative solution of ground-water flow and transport equations
No abstract available.
Authors
Kenneth L. Kipp, J.S. Otto, Thomas F. Russell
Wastewater treatment and groundwater contamination Wastewater treatment and groundwater contamination
No abstract available.
Authors
J.A. Field, Larry B. Barber
Use of oxygen-18 and deuterium to assess the hydrology of groundwater-lake systems Use of oxygen-18 and deuterium to assess the hydrology of groundwater-lake systems
A thorough understanding of a lake's hydrology is essential for many lake studies. In some situations the interactions between groundwater systems and lakes are complex; in other cases the hydrology of a multilake system needs to be quantified. In such places, stable isotopes offer an alternative to the more traditional piezometer networks, which are costly to install and time-consuming...
Authors
David P. Krabbenhoft, Carl J. Bowser, Carol Kendall, Joel R. Gat
The geologic origin and pathways of mobility of selenium from the California Coast Ranges to the west-central San Joaquin valley The geologic origin and pathways of mobility of selenium from the California Coast Ranges to the west-central San Joaquin valley
No abstract available.
Authors
Theresa S. Presser
Biogeochemical transformations of selenium in anoxic environments Biogeochemical transformations of selenium in anoxic environments
No abstract available.
Authors
Ronald S. Oremland
Testing and comparison of four ionic tracers to measure stream flow loss by multiple tracer injection Testing and comparison of four ionic tracers to measure stream flow loss by multiple tracer injection
The ionic tracers lithium, sodium, chloride and bromide were used to measure flow loss in a small stream (≈︁ 10 ls−1). An injectate containing all four tracers was added continuously at five sites along a 507 m study reach of St Kevin Gulch, Lake County, Colorado to determine which sections of the stream were losing water to the stream bed and to ascertain how well the four tracers...
Authors
G. W. Zellweger
Estimates of percolation rates and ages of water in unsaturated sediments at two Mojave Desert sites, California-Nevada Estimates of percolation rates and ages of water in unsaturated sediments at two Mojave Desert sites, California-Nevada
Thick unsaturated zones in arid regions increasingly are being sought for the burial of radioactive and other hazardous wastes. Estimating percolation rates of water from precipitation at proposed burial sites is important for site assessment. Chloride profiles in unsaturated sediments are used to show differences and similarities in the rates of percolation at two sites in the Mojave...
Authors
David E. Prudic
Occurrence and distribution of organochlorine compounds in sediment and livers of striped bass (Morone saxatilis) from the San Francisco Bay-Delta Estuary Occurrence and distribution of organochlorine compounds in sediment and livers of striped bass (Morone saxatilis) from the San Francisco Bay-Delta Estuary
A preliminary assessment was made in 1992 of chlorinated organic compounds in sediments and in livers of striped bass from the San Francisco Bay-Delta Estuary. Samples of sediment and striped bass livers contained DDT (ethane, 1,1,1-trichloro-2,2-bis (p-chlorophenyl)-) and its degradation products, DDD (ethane, 1,1-dichloro-2,2-bis(p-chlorophenyl)-) and DDE (ethylene, 1,1-dichloro-2,2...
Authors
W. E. Pereira, F. D. Hostettler, J.R. Cashman, R. S. Nishioka
Behavior of pollutant-degrading microorganisms in aquifers: Predictions for genetically engineered organisms Behavior of pollutant-degrading microorganisms in aquifers: Predictions for genetically engineered organisms
Bioremediation via environmental introductions of degradative microorganisms requires that the microbes survive in substantial numbers and effect an increase in the rate and extent of pollutant removal. Combined field and microcosm studies were used to assess these abilities for laboratory-grown bacteria. Following introduction into a contaminated aquifer, viable cells of Pseudomonas sp...
Authors
M.L. Krumme, R. L. Smith, J. Egestorff, S.M. Thiem, J.M. Tiedje, K.N. Timmis, D.F. Dwyer
Hydrology and water quality in claypan soil and glacial till at the Missouri Management Systems Evaluation Area near Centralia, Missouri; May 1991 to September 1993 Hydrology and water quality in claypan soil and glacial till at the Missouri Management Systems Evaluation Area near Centralia, Missouri; May 1991 to September 1993
No abstract available.
Authors
D.H. Wilkison, D. W. Blevins, B.P. Kelley, W.C. Wallace
Identification, characterization, and analysis of hydraulically conductive fractures in granitic basement rocks, Millville, Massachusetts Identification, characterization, and analysis of hydraulically conductive fractures in granitic basement rocks, Millville, Massachusetts
A suite of geophysical logs designed to identify and characterize fractures and water production in fractures was run in six bedrock boreholes at a ground-water contamination site near the towns of Millville and Uxbridge in south-central Massachusetts. The geophysical logs used in this study included conventional gamma, single-point resistance, borehole fluid resistivity, caliper...
Authors
Frederick L. Paillet, P.W. Ollila