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
Response to comment on "Methane as a product of chloroethene biodegradation under methanogenic conditions" Response to comment on "Methane as a product of chloroethene biodegradation under methanogenic conditions"
No abstract available.
Authors
Paul M. Bradley, Francis H. Chapelle
Rice pesticide concentrations in the Colusa Basin Drain and the Sacramento River, California, 1990-1993 Rice pesticide concentrations in the Colusa Basin Drain and the Sacramento River, California, 1990-1993
The pesticides molinate, thiobencarb, and carbofuran are applied to rice (Oryza sativa L.) fields in the Sacramento Valley, California, each year during April through June. These pesticides are of concern because of their adverse effects on water quality and their potential adverse effects on aquatic life. Therefore, the California Regional Water Quality Control Board (CRWQCB) mandated...
Authors
Kathryn L. Crepeau, Kathryn M. Kuivila
Integrating surface and borehole geophysics in ground water studies: An example using electromagnetic soundings in south Florida Integrating surface and borehole geophysics in ground water studies: An example using electromagnetic soundings in south Florida
Time domain surface electromagnetic soundings, borehole induction logs, and other borehole logging techniques are used to construct a realistic model for the shallow subsurface hydraulic properties of unconsolidated sediments in south Florida. Induction logs are used to calibrate surface induction soundings in units of pore water salinity by correlating water sample specific electrical
Authors
Frederick Paillet, Laura Hite, Matthew Carlson
Comment on “Field study of spatial variability in unsaturated flow beneath and adjacent to playas” by Bridget R. Scanlon and Richard S. Goldsmith Comment on “Field study of spatial variability in unsaturated flow beneath and adjacent to playas” by Bridget R. Scanlon and Richard S. Goldsmith
The Scanlon and Goldsmith [1997] paper contains a wealth of data that provides a useful contribution to the understanding of the spatial variability of matrix recharge in and around playa basins on the Southern High Plains. However, a significant clarification is necessary in the analysis of their "water flux" because in this system "water flux" must be placed in the context of both...
Authors
Warren W. Wood
Double-disk solid-phase extraction--Simultaneous cleanup and trace enrichment of herbicides and metabolites from environmental samples Double-disk solid-phase extraction--Simultaneous cleanup and trace enrichment of herbicides and metabolites from environmental samples
Phenylurea and triazine herbicides, including some metabolites, were isolated from water and soil extracts by solid-phase extraction using a layered system of two extraction disks, a method called double-disk solid-phase extraction. The first disk consisted of strong anion exchange (SAX) of 10-μm styrene divinylbenzene (SDB) particles embedded in Teflon, and the second disk was a C18...
Authors
Imma Ferrar, Damia Barcelo, E.M. Thurman
Radiotracer studies of bacterial methanogenesis in sediments from the Dead Sea and Solar Lake (Sinai) Radiotracer studies of bacterial methanogenesis in sediments from the Dead Sea and Solar Lake (Sinai)
No abstract available.
Authors
Mark Marvin-DePasquale, Yoram. Geological Survey Cohen, Ronald S. Oremland, A. Oren
Hydrogeologic structure of the Newark Basin, Pennsylvania, from borehole geophysical logs Hydrogeologic structure of the Newark Basin, Pennsylvania, from borehole geophysical logs
The Brunswick and the underlying Lockatong Formations are comprised of littrifled Mesozoic sediments that constitute part of the Newark Basin in southeastern Pennsylvania (USA). These fractured rocks form an important regional aquifer that consists of gmdational sequences of shale, siltstone, and sandstone, with fluid transport occurring primarily in fractures. An extensive suite of...
Authors
R. H. Morin, L.A. Senior, E.R. Decker
The use of heat as a tracer to estimate recharge beneath streams and artificial recharge ponds The use of heat as a tracer to estimate recharge beneath streams and artificial recharge ponds
No abstract available.
Authors
James Constantz, Richard G. Niswonger, A.E. Stewart
The geochemistry of acid mine waters The geochemistry of acid mine waters
No abstract available.
Authors
D. Kirk Nordstrom, Charles N. Alpers
Use of 13C NMR and FTIR for elucidation of degradation pathways during senescence and litter decomposition of Aspen leaves Use of 13C NMR and FTIR for elucidation of degradation pathways during senescence and litter decomposition of Aspen leaves
No abstract available.
Authors
Robert L. Wershaw, J.A. Leenheer, K. R. Kennedy
Consilience and conciliation, the need for less human impact and more humane impact Consilience and conciliation, the need for less human impact and more humane impact
No abstract available.
Authors
D. Kirk Nordstrom