Publications
Dive into our publications and explore the science from the Environmental Health Program (Toxic Substances Hydrology and Contaminant Biology).
GeoHEALTH-USGS Newsletter
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.
Featured Science Activities
Featured Science Activities
Learn about our Featured Science Activities through our pages that highlight studies, publications, and results.
Filter Total Items: 4094
Development of a model of phytoplankton blooms in Manukau Harbour
No abstract available.
Authors
Graham B. McBride, W. N. Vant, J. E. Cloern, J. B. Liley
Organic carbon sources and sinks in San Francisco Bay: variability induced by river flow
Sources and sinks of organic carbon for San Francisco Bay (California, USA) were estimated for 1980. Sources for the southern reach were dominated by phytoplankton and benthic microalgal production. River loading of organic matter was an additional important factor in the northern reach. Tidal marsh export and point sources played a secondary role. Autochthonous production in San Francisco Bay ap
Authors
Alan D. Jassby, T.M. Powell, James E. Cloern
Coupled effects of vertical mixing and benthic grazing on phytoplankton populations in shallow, turbid estuaries
Coastal ocean waters tend to have very different patterns of phytoplankton biomass variability from the open ocean, and the connections between physical variability and phytoplankton bloom dynamics are less well established for these shallow systems. Predictions of biological responses to physical variability in these environments is inherently difficult because the recurrent seasonal patterns of
Authors
Jeffrey R. Koseff, Jacqueline K. Holen, Stephen G. Monismith, James E. Cloern
Spring climate and salinity in the San Francisco Bay Estuary
Salinity in the San Francisco Bay Estuary almost always experiences its yearly maximum during late summer, but climate variability produces marked interannual variations. The atmospheric circulation pattern impacts the estuary primarily through variations of runoff from rainfall and snowmelt from the Sierra Nevada and, secondarily, through variations in the near-surface salinity in the coastal oce
Authors
Daniel R. Cayan, David H. Peterson
Occurrence and transport of agricultural chemicals in the Mississippi River basin, July through August 1993
Heavy rainfall and severe flooding in the upper Mississippi River Basin from mid-June through early August 1993 flushed extraordinarily large amounts of agricultural chemicals (herbicides and nitrate) into the Mississippi River, many of its tributaries, and, ultimately, the Gulf of Mexico. Even though extremely high streamflows were recorded during the flood in 1993, concentrations of herbicides,
Authors
Donald A. Goolsby, William A. Battaglin, E. Michael Thurman
Evaluation of statistical models to predict chemical quality of shallow ground water in the Pine Barrens of Suffolk County, Long Island, New York
No abstract available.
Authors
P. E. Stackelberg, S. F. Siwiec
Suspended sediment in San Francisco Bay Estuary, California: Recent history and available data sets
No abstract available.
Authors
D.H. Peterson, M. A. Noble, R. E. Smith
Tracer-dilution experiments and solute-transport simulations for a mountain stream, Saint Kevin Gulch, Colorado
No abstract available.
Authors
R. E. Broshears, K.E. Bencala, B. A. Kimball, Diane M. McKnight
Geophysical logging studies in the Snake River Plain Aquifer at the Idaho National Engineering Laboratory — Wells 44, 45, and 46
No abstract available.
Authors
R. H. Morin, Warren Barrash, Frederick L. Paillet, T. A. Taylor
Age dating ground water by use of chlorofluorocarbons (CCl3F and CCl2F2), and distribution of chlorofluorocarbons in the unsaturated zone, Snake River Plain Aquifer, Idaho National Engineering Laboratory, Idaho
No abstract available.
Authors
Eurybiades Busenberg, E.P. Weeks, Niel Plummer, R. C. Bartholomay
Hydrogeologic data collected from a crude-oil spill site near Bemidji, Minnesota, 1983-91
The U.S. Geological Survey began a research project at the site of a crude oil spill near Bemidji, Minnesota in 1983. The project is part of the U.S. Geological Survey's Toxic Substances Hydrology Program. The objectives of research at this site are to obtain an understanding of the mobilization, transport, and fate of petroleum derivatives in the shallow subsurface and to use this understanding t
Authors
S. E. Smith, M. F. Hult
Ground-water quality at the Management Systems Evaluation Area near Princeton, Minnesota, 1991-92
The northern cornbelt sand-plains Management Systems Evaluation Area (MSEA) program is a multiagency, multistate initiative to evaluate the effects of modified and prevailing farming systems on water quality in a sand-plain area in Minnesota and at satellite areas in North and South Dakota, and Wisconsin. The primary objective of Minnesota MSEA is to evaluate the effects of ridge-tillage practices
Authors
Matthew K. Landon, Geoffrey N. Delin, J.A. Lamb, Lei Guo