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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

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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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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.

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Filter Total Items: 4047

Movement and fate of agricultural chemicals in the surface and subsurface environments near Plains, southwestern Georgia: Integrated work plan

No abstract available.
Authors
D.W. Hicks, J. B. McConnell, L.E. Asmussen, R.A. Leonard, C.N. Smith
By
Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Plan to evaluate the effects of hydrogeologic conditions and human activities on water quality in the coastal plain of New York and New Jersey

No abstract available.
Authors
E. F. Vowinkel, S. F. Siwiec
By
Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in the Klamath Basin, California and Oregon, 1988-89

No abstract available.
Authors
S. K. Sorenson, S.E. Schwarzbach
By
Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Time-courses in the retention of food material in the bivalves Potamocorbula amurensis and Macoma balthica significance to the absorption of carbon and chromium

Time courses for ingestion, retention and release via feces of microbial food was investigated using 2 bivalves with different feeding strategies, Potamocorbula amurensis and Macoma balthica. The results showed 2 pathways for the uptake of food material in these clams. The first is represented by an initial label pulse in the feces. The second pathway operates over longer time periods. Inert 51Cr-
Authors
Alan W. Decho, Samuel N. Luoma
By
Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Herbicides in surface waters of the midwestern United States: The effect of spring flush

Approximately three-fourths of all preemergent herbicides used in the United States are applied to row crops over a 12-state area, called the "corn belt" (I). The application of these compounds may cause widespread degradation of water quality (2). Because herbicides are water soluble, there is the potential for leaching into groundwater and surface water (3, 4), as well as aerial transport and Oc
Authors
E. M. Thurman, D. A. Goolsby, M. T. Meyer, D.W. Kolpin
By
Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, Kansas Water Science Center, Central Midwest Water Science Center

Convergent radial dispersion: A note on evaluation of the Laplace transform solution

A numerical inversion algorithm for Laplace transforms that is capable of handling rapid changes in the computed function is applied to the Laplace transform solution to the problem of convergent radial dispersion in a homogeneous aquifer. Prior attempts by the author to invert this solution were unsuccessful for highly advective systems where the Peclet number was relatively large. The algorithm
Authors
Allen F. Moench
By
Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Water-extractable geochemical data for native and irrigated soils from the Kendrick Reclamation Project Area, Wyoming, 1988-89

No abstract available.
Authors
J. G. Crock, R. C. Severson, James A. Erdman
By
Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, Wyoming-Montana Water Science Center

User's manual for WATEQ4F, with revised thermodynamic data base and text cases for calculating speciation of major, trace, and redox elements in natural waters

No abstract available.
Authors
J. W. Ball, D. Kirk Nordstrom
By
Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Uptake and physiological antagonism of selenium and sulfur in alfalfa and wheat under field conditions, San Joaquin Valley, California

No abstract available.
Authors
R. C. Severson, L. P. Gough, J. G. Crock, D. L. Fey, P. L. Hageman, A.H. Love, T.R. Peacock
By
Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Trace metals in clams (Macoma Balthica) and sediments at the Palo Alto mudflat in south San Francisco Bay: April, 1990 - April, 1991

No abstract available.
Authors
Samuel N. Luoma, Daniel J. Cain, Cynthia Brown, Ellen V. Axtmann
By
Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

Preliminary geologic and hydrologic evaluation of a small watershed near Plains, Georgia

No abstract available.
Authors
D.W. Hicks, James B. McConnell, Loris E. Asmussen
By
Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, South Atlantic Water Science Center (SAWSC)

Distribution of selected herbicides and nitrate in the Mississippi River and its major tributaries, April through June 1991

No abstract available.
Authors
D. A. Goolsby, R.C. Coupe, D.J. Markovchick
By
Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program