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
Lean about our Featured Science Activities through our pages that highlight science studies, publications, and results.
Filter Total Items: 3785
Comparison of Penman-Monteith, Shuttleworth-Wallace, and modified Priestley-Taylor evapotranspiration models for wildland vegetation in semiarid rangeland Comparison of Penman-Monteith, Shuttleworth-Wallace, and modified Priestley-Taylor evapotranspiration models for wildland vegetation in semiarid rangeland
Eddy correlation measurements of sensible and latent heat flux are used with measurements of net radiation, soil heat flux, and other micrometeorological variables to develop the Penman-Monteith, Shuttleworth-Wallace, and modified Priestley-Taylor evapotranspiration models for use in a sparsely vegetated, semiarid rangeland. The Penman-Monteith model, a one-component model designed for...
Authors
David I. Stannard
Sampling colloids and colloid-associated contaminants in ground water Sampling colloids and colloid-associated contaminants in ground water
It has recently been recognized that mobile colloids may affect the transport of contaminants in ground water. To determine the significance of this process, knowledge of both the total mobile load (dissolved + colloid-associated) and the dissolved concentration of a ground-water contaminant must be obtained. Additional information regarding mobile colloid characteristics and...
Authors
Debera A. Backhus, Joseph N. Ryan, Daniel M. Groher, John K. MacFarlane, Philip M. Gschwend
Confirmation of rate-dependent behavior in water retention during drainage in nonswelling porous materials Confirmation of rate-dependent behavior in water retention during drainage in nonswelling porous materials
In the water retention process in porous material, changes in water content are assumed to be independent of the rate at which the matric potential varies. Periodically, researchers have presented results that do not support this assumption, indicating that water retention may be rate-dependent under certain conditions. In the present study, long-term experiments were performed on five...
Authors
Jim Constantz
Restoration of lowland streams: an introduction Restoration of lowland streams: an introduction
This paper introduces the Lowland Streams Restoration Workshop that was held in Lund, Sweden in August 1991.Attenders at the Workshop participated in working groups which discussed and reported on the state of knowledge of stream restoration and identified critical areas of information need. Currently, most restoration efforts are emission‐orientated (i.e. waste‐water management), while...
Authors
L.L. Osborne, P.B. Bayley, L.W.G. Higler, B. Statzner, F. Triska, T. Moth Iverson
Hydrologic budget and nitrogen distribution for an agricultural study plot in claypan soil and glacial till near Centralia, Mo.--May 1991 to May 1992 Hydrologic budget and nitrogen distribution for an agricultural study plot in claypan soil and glacial till near Centralia, Mo.--May 1991 to May 1992
No abstract available.
Authors
Brian P. Kelly, L.N. Plummer
Understanding the toxicity of contaminants in sediments: beyond the bioassay-based paradigm Understanding the toxicity of contaminants in sediments: beyond the bioassay-based paradigm
No abstract available.
Authors
Samuel N. Luoma, James L. Carter
Aspects of the biogeochemistry of methane in Mono Lake and the Mono Basin of California Aspects of the biogeochemistry of methane in Mono Lake and the Mono Basin of California
Above-ambient levels of methane and higher hydrocarbons were detected in the atmosphere of the Mono Basin. These gases emanated from several different sources, including natural gas seeps (thermogenic and biogenic), and methanogenic activity in sediments. Seeps were distributed over nearly 33% of the lake bottom and were also present in the exposed former lakebed. They originated from...
Authors
Ronald S. Oremland, Laurence G. Miller, Charles Colbertson, S.W. Robinson, Richard L. Smith, Derek R. Lovley, Michael J. Whiticar, G. King, Ronald P. Kiene, Niels Iversen, Melinda Sargent
Geochemical models Geochemical models
No abstract available.
Authors
David L. Parkhurst, L.N. Plummer
Natural radionuclides Natural radionuclides
No abstract available.
Authors
D. Kirk Nordstrom, Richard B. Wanty
Limits on quantitative descriptions of biocolloid mobility in contaminated groundwater Limits on quantitative descriptions of biocolloid mobility in contaminated groundwater
No abstract available.
Authors
Ronald W. Harvey, E.J. Bouwer
Environmental tracers for age dating young ground water Environmental tracers for age dating young ground water
No abstract available.
Authors
L.N. Plummer, R. L. Michel, E.M. Thurman, Pierre D. Glynn
Physical transport influencing biogeochemistry within the stream catchment continuum Physical transport influencing biogeochemistry within the stream catchment continuum
No abstract available.
Authors
Kenneth E. Bencala, John H. Duff, Judson W. Harvey, A.P. Jackman, F.J. Triska