Publications
Dive into our publications and explore the science from the Environmental Health Program (Toxic Substances Hydrology and Contaminant Biology).
Filter Total Items: 3785
Diagnostic modeling of trace metal partitioning in south San Francisco Bay Diagnostic modeling of trace metal partitioning in south San Francisco Bay
The two-dimensional numerical model ELAmet was used to investigate the effect of adsorption kinetics on the apparent distribution coefficients of Cu, Cd, and Zn in south San Francisco Bay, California. The numerical experiments were designed to determine whether adsorption kinetics can control the basin-scale variability of the observed partitioning and to define the conditions under...
Authors
T. W. Wood, A. M. Baptista, J.S. Kuwabara, A.R. Flegal
Data on selected herbicides and two triazine metabolites in precipitation of the Midwestern and Northeastern United States, 1990-91 Data on selected herbicides and two triazine metabolites in precipitation of the Midwestern and Northeastern United States, 1990-91
Weekly precipitation (rain and snow) samples were collected from 81 National Atmospheric Deposition Program/National Trends Network sites in the Midwestern and Northeastern United States for the analysis of herbicides. In addition, five high- elevation background sites along the Rocky Mountains and in Alaska were sampled to provide data on herbicides in precipitation at sites far from...
Authors
D. A. Goolsby, E.A. Scribner, E.M. Thurman, M.L. Pomes, M. T. Meyer
Concentration and transport data for dissolved inorganic constituents in water collected during seven cruises on the Mississippi River and some of its tributaries, July 1987-June 1990 Concentration and transport data for dissolved inorganic constituents in water collected during seven cruises on the Mississippi River and some of its tributaries, July 1987-June 1990
No abstract available.
Authors
T.I. Brinton, J.R. Barbarino, D.B. Peartt, Howard E. Taylor, Ronald C. Antweiler
Hydrogeology and water quality at the management systems evaluation area near Piketon, Ohio Hydrogeology and water quality at the management systems evaluation area near Piketon, Ohio
This report presents the results of a study by the U.S. Geological Survey, The Ohio State University, and the U.S. Department of Agriculture to describe the hydrology, water quality, and geochemical factors controlling water quality at the Ohio Management Systems Evaluation Area (MSEA). The Ohio MSEA is located on a 650-acre farm in the Scioto River Valley in Pike County, south-central...
Authors
Martha L. Jagucki, Christopher D. Finton, Abraham E. Springer, E. Scott Bair
Documentation of AIR3D, an adaptation of the ground-water-flow code MODFLOW to simulate three-dimensional air flow in the unsaturated zone Documentation of AIR3D, an adaptation of the ground-water-flow code MODFLOW to simulate three-dimensional air flow in the unsaturated zone
No abstract available.
Authors
C.J. Joss, A. L. Baehr
Studies of the San Francisco Bay, California, estuarine ecosystem: Pilot regional monitoring program results, 1994 Studies of the San Francisco Bay, California, estuarine ecosystem: Pilot regional monitoring program results, 1994
No abstract available.
Authors
Jody L. Edmunds, B.E. Cole, J. E. Cloern, J.M. Caffrey, A.D. Jassby
Interpretation of prematurely terminated air-pressurized slug tests Interpretation of prematurely terminated air-pressurized slug tests
An air-pressurized slug test consists of applying a constant pressure to the column of air in a well, monitoring the declining water level, and then releasing the air pressure and monitoring the recovering water level. Such tests offer a means of estimating formation transmissivity and storativity without extensive downhole equipment and the associated safety risks. This paper analyzes...
Authors
Allen M. Shapiro, Earl A. Greene
How wet is wet? Precipitation constraints on late Quaternary climate in the southern Arabian Peninsula How wet is wet? Precipitation constraints on late Quaternary climate in the southern Arabian Peninsula
It is generally recognized that the southern Arabian Peninsula has had two wet periods in the late Quaternary. To quantify ‘wet’ a 28 000 year old capillary surface associated with a paleowater-table was mapped and used as a surrogate for the water table in a ground-water model. Analysis of this model suggests 1.4 mm year−1 of recharge is necessary to support the water table at the...
Authors
W.W. Wood, Jeffrey L. Imes
Changes in soil hydraulic properties caused by construction of a simulated waste trench at the Idaho National Engineering Laboratory, Idaho Changes in soil hydraulic properties caused by construction of a simulated waste trench at the Idaho National Engineering Laboratory, Idaho
In order to assess the effect of filled waste disposal trenches on transport-governing soil properties, comparisons were made between profiles of undisturbed soil and disturbed soil in a simulated waste trench. The changes in soil properties induced by the construction of a simulated waste trench were measured near the Radioactive Waste Management Complex at the Idaho National...
Authors
S. M. Shakofsky
Growth of strain SES-3 with arsenate and other diverse electron acceptors Growth of strain SES-3 with arsenate and other diverse electron acceptors
The selenate-respiring bacterial strain SES-3 was able to use a variety of inorganic electron acceptors to sustain growth. SES-3 grew with the reduction of arsenate to arsenite, Fe(III) to Fe(II), or thiosulfate to sulfide. It also grew in medium in which elemental sulfur, Mn(IV), nitrite, trimethylamine N-oxide, or fumarate was provided as an electron acceptor. Growth on oxygen was
Authors
A.M. Laverman, J.S. Blum, J.K. Schaefer, Elizabeth J.P. Phillips, Derek R. Lovley, R.S. Oremland
Mercury cycling in the Allequash Creek watershed, northern Wisconsin Mercury cycling in the Allequash Creek watershed, northern Wisconsin
Although there have been recent significant gains in our understanding of mercury (Hg) cycling in aquatic environments, few studies have addressed Hg cycling on a watershed scale in particular, attention to Hg species transfer between watershed components (upland soils, groundwater, wetlands, streams, and lakes) has been lacking. This study describes spatial and temporal distributions of...
Authors
D. P. Krabbenhoft, J.M. Benoit, Christopher L. Babiarz, J.P. Hurley, A.W. Andren
Fluxes of water and solute in a coastal wetland sediment. l. The contribution of regional groundwater discharge Fluxes of water and solute in a coastal wetland sediment. l. The contribution of regional groundwater discharge
Upward discharge of fresh groundwater into a mid-Atlantic intertidal wetland contributed 62% of the water needed to replace evapotranspiration losses from the sediment during an 11 day period in September. Infiltration during flooding by tides provided most of the balance; thus there was a net advection of salt into the sediment. The amount of groundwater discharge was estimated from...
Authors
William K. Nuttle, Judson W. Harvey