Publications

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.

Get the Newsletter

Featured Science Activities

Brown Bullhead from the Ashtabula River Illustrating the External Tumors Observed

Learn about our Featured Science Activities through our pages that highlight studies, publications, and results.

Get Science

Filter Total Items: 4095

Publication Type

Node Release Date

States

Fulltext search

January 1, 1985

Separation of solute and particulate vectors of heavy metal uptake in controlled suspension-feeding experiments with Macoma balthica Separation of solute and particulate vectors of heavy metal uptake in controlled suspension-feeding experiments with Macoma balthica

Radioisotope labelling experiments with the estuarine clam, Macoma balthica, are described, in which a filter chamber device was used to separate solute metal uptake from uptake, of metals associated with suspended bacteria. Solute uptake contributed a majority of the 14-day total body burdens of 65Zn and 109Cd, whereas 57Co uptake largely resulted from ingestion of isotope-laden...

Authors

Ronald W. Harvey, Samuel N. Luoma

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Geochemical investigations of polychlorinated dibenzo-p-dioxins in the subsurface environment at an abandoned wood-treatment facility Geochemical investigations of polychlorinated dibenzo-p-dioxins in the subsurface environment at an abandoned wood-treatment facility

The discharge of effluents containing creosote and pentachlorophenol into two unlined surface impoundments at a wood-treatment facility in Pensacola, Florida, resulted in contamination of the underlying sand and gravel aquifer. These wastes contained significant amounts of chlorinated dioxins, such as isomers of hexa- and heptachlorodibenzo-p-dioxins and octachlorodibenzo-p-dioxin...

Authors

W. E. Pereira, C.E. Rostad, M.E. Sisak

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Reduction of hexavalent chromium in water samples acidified for preservation Reduction of hexavalent chromium in water samples acidified for preservation

Reduction of hexavalent chromium, Cr(VI), in water samples, preserved by standard techniques, was investigated. The standard preservation technique for water samples that are to be analyzed for Cr(VI) consists of filtration through a 0.45‐µm membrane, acidification to a pH 2, and storage in plastic bottles. Batch experiments were conducted to evaluate the effect of H+ concentration, NO2

Authors

Kenneth G. Stollenwerk, D.B. Grove

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Modeling the rate-controlled sorption of hexavalent chromium Modeling the rate-controlled sorption of hexavalent chromium

Sorption of chromium VI on the iron-oxide- and hydroxide-coated surface of alluvial material was numerically simulated with rate-controlled reactions. Reaction kinetics and diffusional processes, in the form of film, pore, and particle diffusion, were simulated and compared with experimental results. The use of empirically calculated rate coefficients for diffusion through the reacting...

Authors

D.B. Grove, Kenneth G. Stollenwerk

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Adsorption and desorption of hexavalent chromium in an alluvial aquifer near Telluride, Colorado Adsorption and desorption of hexavalent chromium in an alluvial aquifer near Telluride, Colorado

A laboratory investigation of reactions between hexavalent chromium [Cr(VI)] and alluvium was conducted to evaluate reactions of Cr(VI) contaminating an alluvial aquifer near Telluride, CO and to determine the mechanisms responsible for these reactions. Uncontaminated alluvium and groundwater (spiked with CrO42−) from the study site were used in batch and column experiments. Results of...

Authors

Kenneth G. Stollenwerk, D.B. Grove

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

December 1, 1984