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Dive into our publications and explore the science from the Environmental Health Program (Toxic Substances Hydrology and Contaminant Biology).

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.

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January 1, 1999

Chlorofluorocarbons Chlorofluorocarbons

No abstract available.

Authors

L.N. Plummer, Eurybiades Busenberg

Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1999

Using flood-analysis techniques to estimate dissolved-zinc concentrations Using flood-analysis techniques to estimate dissolved-zinc concentrations

No abstract available.

Authors

Kenneth J. Leib, Winfield G. Wright, M. Alisa Mast

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1999

Predicting soil-water retention and hydraulic conductivity from textural and structural information Predicting soil-water retention and hydraulic conductivity from textural and structural information

No abstract available.

Authors

John R. Nimmo

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1999

Selenium pollution Selenium pollution

No abstract available.

Authors

Theresa S. Presser

Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1999

Transport of heat and gas in soil and at the surface Transport of heat and gas in soil and at the surface

No abstract available.

Authors

D.E. Anderson

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1999

Solutions to questions Solutions to questions

No abstract available.

Authors

D.E. Anderson

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1999

Molecular analysis of microbial community structures in pristine and contaminated aquifers: Field and laboratory microcosm experiments Molecular analysis of microbial community structures in pristine and contaminated aquifers: Field and laboratory microcosm experiments

This study used phylogenetic probes in hybridization analysis to (i) determine in situ microbial community structures in regions of a shallow sand aquifer that were oxygen depleted and fuel contaminated (FC) or aerobic and noncontaminated (NC) and (ii) examine alterations in microbial community structures resulting from exposure to toluene and/or electron acceptor supplementation...

Authors

Y. Shi, M.D. Zwolinski, M.E. Schreiber, J.M. Bahr, G.W. Sewell, W.J. Hickey

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1999

Bivalve biomarker workshop: Overview and discussion group summaries Bivalve biomarker workshop: Overview and discussion group summaries

No abstract available.

Authors

A.H. Ringwood, M.J. Hameedi, R.F. Lee, M. Brouwer, E. C. Peters, G.I. Scott, S. N. Luoma, R.T. Di Giulio

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1999

Is a probabilistic performance assessment enough? Is a probabilistic performance assessment enough?

No abstract available.

Authors

Leonard F. Konikow, Rodney C. Ewing

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1999

Adsorption of bacteriophages on clay minerals Adsorption of bacteriophages on clay minerals

The ability to predict the fate of microorganisms in soil is dependent on an understanding of the process of their sorption on soil and subsurface materials. Presently, we have focused on studying the thermodynamics of sorption of bacteriophages (T-2, MS-2, and φX-174) on clays (hectorite, saponite, kaolinite, and clay fraction of samples collected from a landfill site). The...

Authors

Sandip Chattopadhyay, Robert W. Puls

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1999

Copper, lead, mercury and zinc in periphyton from the south Florida ecosystem Copper, lead, mercury and zinc in periphyton from the south Florida ecosystem

Periphyton samples from the Big Cypress National Preserve were analyzed for concentrations of copper, lead, zinc, mercury, and methylmercury. Concentrations of organic carbon, inorganic carbon, nitrogen, and phosphorus in periphyton samples also were determined. The samples were extracted with sodium acetate solution at a pH of 5.5 to determine exchangeable and carbonate phase metal...

Authors

T. Cox, N.S. Simon, L. Newland

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1999

Bioremediation of petroleum hydrocarbon-contaminated ground water: The perspectives of history and hydrology Bioremediation of petroleum hydrocarbon-contaminated ground water: The perspectives of history and hydrology

Bioremediation, the use of microbial degradation processes to detoxify environmental contamination, was first applied to petroleum hydrocarbon-contaminated ground water systems in the early 1970s. Since that time, these technologies have evolved in some ways that were clearly anticipated early investigators, and in other ways that were not foreseen. The expectation that adding oxidants...

Authors

F. H. Chapelle

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program