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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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Brown Bullhead from the Ashtabula River Illustrating the External Tumors Observed

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April 1, 1985

The aqueous photolysis of ethylene glycol adsorbed on geothite The aqueous photolysis of ethylene glycol adsorbed on geothite

Suspensions of goethite (α-FeOOH) were photolyzed in aerated ethylene glycol-water solutions at pH 6.5, with ultraviolet light in the wavelength range300–400 nm. Under these conditions, formaldehyde and glycolaldehyde were detected as photoproducts. Quantum yields of formaldehyde production ranged from 1.9 7times; 10-5 to 2.9 × 10-4 over the ethylene glycol concentration range of 0.002-2...

Authors

Kirkwood M. Cunningham, Marvin C. Goldberg, E.R. Weiner

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

April 1, 1985

Effects of copper on production of periphyton, nitrogen fixation and processing of leaf litter in a Sierra Nevada, California, stream Effects of copper on production of periphyton, nitrogen fixation and processing of leaf litter in a Sierra Nevada, California, stream

1Production of periphyton, nitrogen fixation and processing of leaf litter were examined in an oligotrophic Sierra Nevada stream and the responses of these processes to copper (2.5, 5 and 10μg 1-1 CuT [total filtrable copper]; approximately 12, 25 and 50 ng 1-1 Cu2+) were determined.2Autotrophic and total production were estimated from 3-week accumulations of biomass on artificial...

Authors

Harry V. Leland, James L. Carter

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

March 1, 1985

Sorption of lead onto two gram-negative marine bacteria in seawater Sorption of lead onto two gram-negative marine bacteria in seawater

Laboratory adsorption experiments performed at environmentally significant lead (Pb) and cell concentrations indicate that the marine bacteria examined have significant binding capacities for Pb. However, the behavior governing Pb sorption onto gram-negative bacteria in seawater may be quite complex. The sorption kinetics appear to involve two distinct phases, i.e., a rapid removal of Pb...

Authors

Ronald W. Harvey, James O. Leckie

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Application of NMR spectroscopy for determining functionality in humic substances Application of NMR spectroscopy for determining functionality in humic substances

No abstract available.

Authors

Robert L. Wershaw

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Molecular weight and size measurements of humic substances Molecular weight and size measurements of humic substances

No abstract available.

Authors

R.L. Wershaw, George R. Aiken

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

January 1, 1985

Groundwater forecasting Groundwater forecasting

No abstract available.

Authors

Leonard F. Konikow, E.P. Patten

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Stable isotope and amino acid composition of estuarine dissolved colloidal material Stable isotope and amino acid composition of estuarine dissolved colloidal material

No abstract available.

Authors

A.C. Sigleo, S.A. Macko

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Aspects of the biogeochemistry of Big Soda Lake, Nevada Aspects of the biogeochemistry of Big Soda Lake, Nevada

No abstract available.

Authors

Ronald S. Oremland, R. L. Smith, Charles W. Culbertson

Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, New England Water Science Center

January 1, 1985

Humic substances in groundwater Humic substances in groundwater

No abstract available.

Authors

E.M. Thurman

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Approaches to the study of lake hydrology Approaches to the study of lake hydrology

No abstract available

Authors

Gene E Likens

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Partitioning studies of coal-tar constituents in a two-phase contaminated ground-water system Partitioning studies of coal-tar constituents in a two-phase contaminated ground-water system

Organic compounds derived from coal-tar wastes in a contaminated aquifer in St. Louis Park, Minnesota, were identified, and their partition coefficients between the tar phase and aqueous phase were determined and compared with the corresponding n-octanol/water partition coefficients. Coal tar contains numerous polycyclic aromatic compounds, many of which are suspected carcinogens or...

Authors

Colleen E. Rostad, W. E. Pereira, M. F. Hult

Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center

January 1, 1985

Dissolution of alkaline earth sulfates in the presence of montmorillonite Dissolution of alkaline earth sulfates in the presence of montmorillonite

In a study of the effect of montmorillonite on the dissolution of BaSO4 (barite), SrSO4 (celestite), and 226Ra from U mill tailings, it was found that: (1) More of these substances dissolve in an aqueous system that contains montmorillonite than dissolve in a similar system without clay, due to the ion exchange properties of the clay; (2) Na-montmorillonite is more effective in aiding...

Authors

D. D. Eberl, Edward R. Landa

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program