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: 4098
Enzymatic uranium precipitation Enzymatic uranium precipitation
No abstract available.
Authors
Y.A. Gorby, Derek R. Lovley
Laboratory investigations on the role of sediment surface and ground water chemistry in transport of bacteria through a contaminated Sandy Aquifer Laboratory investigations on the role of sediment surface and ground water chemistry in transport of bacteria through a contaminated Sandy Aquifer
No abstract available.
Authors
M. A. Scholl, R.W. Harvey
Effect of water saturation in soil organic matter on the partition of organic compounds Effect of water saturation in soil organic matter on the partition of organic compounds
No abstract available.
Authors
D.W. Rutherford, G.T. Chlou
Modeling transport in transient ground-water flow: An unacknowledged approximation Modeling transport in transient ground-water flow: An unacknowledged approximation
During unsteady or transient ground-water flow, the fluid mass per unit volume of aquifer changes as the potentiometric head changes, and solute transport is affected by this change in fluid storage. Three widely applied numerical models of two-dimensional transport partially account for the effects of transient flow by removing terms corresponding to the fluid continuity equation from...
Authors
Daniel J. Goode
A systematic approach to modelling the dynamic linkage of climate, physical catchment descriptors and hydrologic response components A systematic approach to modelling the dynamic linkage of climate, physical catchment descriptors and hydrologic response components
No abstract available.
Authors
A.J. Jakeman, G.M. Hornberger, I.G. Littlewood, P.G. Whitehead, J. W. Harvey, K.E. Bencala
An improved method for field extraction and laboratory analysis of large, intact soil cores An improved method for field extraction and laboratory analysis of large, intact soil cores
Various methods have been proposed for the extraction of large, undisturbed soil cores and for subsequent analysis of fluid movement within the cores. The major problems associated with these methods are expense, cumbersome field extraction, and inadequate simulation of unsaturated flow conditions. A field and laboratory procedure is presented that is economical, convenient, and...
Authors
J.A. Tindall, K. Hemmen, J.F. Dowd
Consumption of freons CFC-11 and CFC-12 by anaerobic sediments and soils Consumption of freons CFC-11 and CFC-12 by anaerobic sediments and soils
A variety of anaerobic sediments and soils consumed CFC-11 (CFCl3) and CFC-12 (CF2Cl2). An aerobic soil did not. Active microbial metabolism was required for CFC-12 uptake in all of the sediments examined. CFC-11 uptake was faster in the presence of microbial activity, but reduced components in the sediments also resulted in nonenzymatic CFC-11 consumption in most instances. CFC-12...
Authors
Derek R. Lovley, J.C. Woodward
Aquatic insects as bioindicators of trace element contamination in cobble-bottom rivers and streams Aquatic insects as bioindicators of trace element contamination in cobble-bottom rivers and streams
In one river, Cu, Cd, Pb, and Zn were analysed in insects and in fine bed sediments over a 381-km reach downstream of a large copper mining complex. In another river, As contamination from a gold mine was assessed in insects and bed sediments over a 40-km reach. All insect taxa collected in contaminated river reaches had elevated whole-body trace element concentrations, but few species...
Authors
D.J. Cain, S. N. Luoma, J.L. Carter, S.V. Fend
Trihalomethane formation potential of Kentucky River water Trihalomethane formation potential of Kentucky River water
No abstract available.
Authors
R. E. Rathbun, K. D. White, R. D. Evaldi
Detailed study of selenium in soil, representative plants, water, bottom sediment, and biota in the Kendrick Reclamation Project area, Wyoming, 1988-90 Detailed study of selenium in soil, representative plants, water, bottom sediment, and biota in the Kendrick Reclamation Project area, Wyoming, 1988-90
No abstract available.
Authors
R.B. See, D. L. Naftz, D. A. Peterson, J.G. Crock, J. A. Erdman, R. C. Severson, Pedro Ramirez, J.A. Armstrong
Selected meteorological data for an arid site near Beatty, Nye County, Nevada, calendar year 1989 Selected meteorological data for an arid site near Beatty, Nye County, Nevada, calendar year 1989
Selected meteorological data were collected at a study site adjacent to a low-level radioactive-waste burial facility near Beatty, Nevada, for calendar year 1989. Data were collected in support of ongoing studies to estimate the potential for downward movement of radionuclides into the unsaturated sediments beneath waste-burial trenches at the facility. The data include air temperature...
Authors
J.L. Wood, Brian J. Andraski