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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, 2006

Principles of chlorofluorocarbon dating Principles of chlorofluorocarbon dating

No abstract available.

Authors

L.N. Plummer, Eurybiades Busenberg

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

January 1, 2006

Selected case studies using CFC data Selected case studies using CFC data

No abstract available.

Authors

L.N. Plummer, Eurybiades Busenberg, P.G. Cook, L. F Han, M. Groning

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 2006

CFCs in binary mixtures of young and old groundwater CFCs in binary mixtures of young and old groundwater

No abstract available.

Authors

L.N. Plummer, Eurybiades Busenberg, L. F Han

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

January 1, 2006

Data interpretation in representative cases Data interpretation in representative cases

No abstract available.

Authors

L.N. Plummer, Eurybiades Busenberg, L. F Han

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

January 1, 2006

Effects and processes that can modify apparent CFC age Effects and processes that can modify apparent CFC age

No abstract available.

Authors

P. Cook, L.N. Plummer, D. K. Solomon, Eurybiades Busenberg, L. F Han

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 2006

Groundwater modeling Groundwater modeling

No abstract available.

Authors

Leonard F. Konikow, Thomas E. Reilly, Paul M. Barlow, Clifford I. Voss

Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Groundwater and Streamflow Information Program, Environmental Health Program

January 1, 2006

Models of groundwater ages and residence times Models of groundwater ages and residence times

No abstract available.

Authors

D. K. Solomon, L.N. Plummer, Eurybiades Busenberg, P.G. Cook

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

January 1, 2006

Practical application of CFCs in hydrological investigations Practical application of CFCs in hydrological investigations

No abstract available.

Authors

D. K. Solomon, L.N. Plummer, Eurybiades Busenberg, P.G. Cook

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

January 1, 2006

Attention of arsenic in Bangladesh sediments: Implications for ground-water development Attention of arsenic in Bangladesh sediments: Implications for ground-water development

No abstract available.

Authors

A. H. Welch, Kenneth G. Stollenwerk, George N. Breit, A. L. Foster, J. C. Yount, J.W. Whitney, M.N. Uddin, A.M. Alam

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, Geology, Geophysics, and Geochemistry Science Center

January 1, 2006

Combined interpretation of radar, hydraulic, and tracer data from a fractured-rock aquifer near Mirror Lake, New Hampshire, USA Combined interpretation of radar, hydraulic, and tracer data from a fractured-rock aquifer near Mirror Lake, New Hampshire, USA

An integrated interpretation of field experimental cross-hole radar, tracer, and hydraulic data demonstrates the value of combining time-lapse geophysical monitoring with conventional hydrologic measurements for improved characterization of a fractured-rock aquifer. Time-lapse difference-attenuation radar tomography was conducted during saline tracer experiments at the US Geological...

Authors

F. D. Day-Lewis, J.W. Lane, S.M. Gorelick

Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Groundwater and Streamflow Information Program, Environmental Health Program

January 1, 2006

Kinetics of sorption and abiotic oxidation of arsenic(III) by aquifer materials Kinetics of sorption and abiotic oxidation of arsenic(III) by aquifer materials

The fate of arsenic in groundwater depends largely on its interaction with mineral surfaces. We investigated the kinetics of As(III) oxidation by aquifer materials collected from the USGS research site at Cape Cod, MA, USA, by conducting laboratory experiments. Five different solid samples with similar specific surface areas (0.6–0.9 m2 g−1) and reductively extractable iron contents (18...

Authors

A. Amirbahman, D.B. Kent, G.P. Curtis, J.A. Davis

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 2006

Light-mediated Zn uptake in photosynthetic biofilm Light-mediated Zn uptake in photosynthetic biofilm

Our experiments conducted under controlled laboratory conditions demonstrate diel uptake and release of zinc (Zn) in lab-cultured biofilm exposed to Zn concentrations that are present in some mining-impacted streams (1–2 mg Zn/l). Specifically, at constant pH, temperature, and aqueous Zn concentrations in the exposure water, biofilm accumulated Zn during the light periods of the...

Authors

J.M. Morris, A.M. Farag, D. A. Nimick, J.S. Meyer

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program