Publications

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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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January 1, 1985

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 dissolution

Authors

D. D. Eberl, Edward R. Landa

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Phosphorus-zinc interactive effects on growth by Selenastrum capricornutum (chlorophyta)

No abstract available.

Authors

J.S. Kuwabara

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Soil sorption of organic vapors and effects of humidity on sorptive mechanism and capacity

No abstract available.

Authors

C. T. Chiou, T.D. Shoup

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Errors and parameter estimation in precipitation-runoff modeling: 2. Case study

A case study is presented which illustrates some of the error analysis, sensitivity analysis, and parameter estimation procedures reviewed in the first part of this paper. It is shown that those procedures, most of which come from statistical nonlinear regression theory, are invaluable in interpreting errors in precipitation-runoff modeling and in identifying appropriate calibration strategies.

Authors

Brent M. Troutman

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1985

Migration of wood-preserving chemicals in contaminated groundwater in a sand aquifer at Pensacola, Florida

Operation of a wood-preserving facility for nearly 80 years at Pensacola, FL, contaminated the near-surface groundwater with creosote and pentachlorophenol. The major source of aquifer contamination was unlined surface impoundments that were in direct hydraulic contact with the groundwater. Episodes of overtopping the impoundments and overland flow of treatment liquor and waste were also significa

Authors

D.F. Goerlitz, D.E. Troutman, E.M. Godsy, B.J. Franks

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

December 1, 1984