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
Studies of the San Francisco Bay, California, estuarine ecosystem regional monitoring program results, 1996 Studies of the San Francisco Bay, California, estuarine ecosystem regional monitoring program results, 1996
As part of a regional monitoring program, water samples were collected in the San Francisco Bay estuary during 21 cruises from January through December 1996. Conductivity, temperature, light attenuation, turbidity, oxygen, and in-vivo chlorophyll fluorescence were measured longitudinally and vertically in the main channel of the estuary from south of the Dumbarton Bridge in the southern...
Authors
Jelriza I. Baylosis, Jody L. Edmunds, Brian E. Cole, James E. Cloern
Preliminary characterization of acid-generating potential and toxic metal solubility of some abandoned metal-mining related wastes in the Boulder River headwaters, northern Jefferson County, Montana Preliminary characterization of acid-generating potential and toxic metal solubility of some abandoned metal-mining related wastes in the Boulder River headwaters, northern Jefferson County, Montana
No abstract available.
Authors
George A. Desborough, David L. Fey
Near field receiving water monitoring of trace metals in Clams (Macoma balthica) and sediments near the Palo Alto and San Jose/Sunnyvale Water Quality Control Plants in South San Francisco Bay: 1996 Near field receiving water monitoring of trace metals in Clams (Macoma balthica) and sediments near the Palo Alto and San Jose/Sunnyvale Water Quality Control Plants in South San Francisco Bay: 1996
No abstract available.
Authors
S. N. Luoma, D.J. Cain, C. Brown, M. Hornberger, R. Bouse
In situ ecosystem effects of trace contaminants in San Francisco Bay Estuary - The necessary link to establishing water quality standards II In situ ecosystem effects of trace contaminants in San Francisco Bay Estuary - The necessary link to establishing water quality standards II
No abstract available.
Authors
Francis Parcheso, C. L. Brown, J.K. Thompson, S.L. Luoma
Terbuthylazine and deethylterbuthylazine in rain and surface water: Determination by enzyme immunoassay and gas chromatography/mass spectrometry Terbuthylazine and deethylterbuthylazine in rain and surface water: Determination by enzyme immunoassay and gas chromatography/mass spectrometry
Rain and surface water samples from Southern Germany were investigated from 1991 to 1995 for terbuthylazine and one of its major metabolites, deethylterbuthylazine. The concentrations observed were compared to the concentrations found for atrazine and deethylatrazine in the same water samples. Concentrations ranged from 0.02 μg/L to 0.7 μg/L for terbuthylazine and from 0.02 μg/L to 0.6...
Authors
A. Dankwardt, E.M. Thurman, B. Hock
Identification of ionic chloroacetanilide-herbicide metabolites in surface water and groundwater by HPLC/MS using negative ion spray Identification of ionic chloroacetanilide-herbicide metabolites in surface water and groundwater by HPLC/MS using negative ion spray
Solid-phase extraction (SPE) was combined with high-performance liquid chromatography/high-flow pneumatically assisted electrospray mass spectrometry (HPLC/ESP/MS) for the trace analysis of oxanilic and sulfonic acids of acetochlor, alachlor, and metolachlor. The isolation procedure separated the chloroacetanilide metabolites from the parent herbicides during the elution from C18...
Authors
Imma Ferrer, E.M. Thurman, Damia Barcelo
Natural and mining-related sources of dissolved minerals during low flow in the Upper Animas River Basin, southwestern Colorado Natural and mining-related sources of dissolved minerals during low flow in the Upper Animas River Basin, southwestern Colorado
As part of the Clean Water Act of 1972 (Public Law 92-500), all States are required to establish water-quality standards for every river basin in the State. During 1994, the Colorado Department of Public Health and Environment proposed to the Colorado Water Quality Control Commission (CWQCC) an aquatic-life standard of 225 µg/L (micrograms per liter) for the dissolved-zinc concentration...
Authors
Winfield G. Wright
Microorganisms as tracers in groundwater injection and recovery experiments: A review Microorganisms as tracers in groundwater injection and recovery experiments: A review
Modern day injection and recovery techniques designed to examine the transport behavior of microorganisms in groundwater have evolved from experiments conducted in the late 1800s, in which bacteria that form red or yellow pigments were used to trace flow paths through karst and fractured- rock aquifers. A number of subsequent groundwater hydrology studies employed bacteriophage that can...
Authors
R.W. Harvey
Forecasting spring runoff pulses from the Sierra Nevada Forecasting spring runoff pulses from the Sierra Nevada
No abstract available.
Authors
M. D. Dettinger, D. H. Peterson, H.F Diaz, D.R. Cayan
Iron deposition as acidic groundwater encounters carbonates in the alluvium of Pinal Creek, Arizona, U.S.A. Iron deposition as acidic groundwater encounters carbonates in the alluvium of Pinal Creek, Arizona, U.S.A.
In a column experiment, acidic groundwater from Pinal Creek Arizona, a Cu mining area, was eluted through a composited alluvial sample obtained from a core that had been removed from a well downgradient of the acidic groundwater. The minerals present in typical grains and flakes in the alluvium before and after the elution were determined by X-ray diffraction (XRD), scanning electron...
Authors
Carol J. Lind, R.L. Oscarson
Kinetics of DCE and VC mineralization under methanogenic and Fe(III)- reducing conditions Kinetics of DCE and VC mineralization under methanogenic and Fe(III)- reducing conditions
The kinetics of anaerobic mineralization of DCE and VC under methanogenic and Fe(III)-reducing conditions as a function of dissolved contaminant concentration were evaluated. Microorganisms indigenous to creek bed sedi ments, where groundwater contaminated with chlorinated ethenes continuously discharges, demonstrated significant mineralization of DCE and VC under methanogenic and Fe(III...
Authors
P. M. Bradley, F. H. Chapelle