Peter C Van Metre (Former Employee)
Science and Products
Filter Total Items: 31
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Filter Total Items: 88
Trends in hydrophobic organic contaminants in urban and reference lake sediments across the United States, 1970-2001
A shift in national policy toward stronger environmental protection began in the United States in about 1970. Conversely, urban land use, population, energy consumption, and vehicle use have increased greatly since then. To assess the effects of these changes on water quality, the U.S. Geological Survey used sediment cores to reconstruct water-quality histories for38 urban and reference lakes acro
Authors
P. C. Van Metre, B.J. Mahler
Contaminant trends in reservoir sediment cores as records of influent stream quality
When reconstructing water-quality histories from lake and reservoir cores, it is sometimes assumed that the chemical signatures in the cores reflect historical water quality in the influent streams. To investigate this assumption, concentrations of metals, PAHs, and organochlorine compounds in sediment cores were compared to those associated with an influent-stream suspended sediment for three res
Authors
P. C. Van Metre, B.J. Mahler
The contribution of particles washed from rooftops to contaminant loading to urban streams
Rooftops are both a source of and a pathway for contaminated runoff in urban environments. To investigate the importance of particle-associated contamination in rooftop runoff, particles washed from asphalt shingle and galvanized metal roofs at sites 12 and 102 m from a major expressway were analyzed for major and trace elements and PAHs. Concentrations and yields from rooftops were compared among
Authors
Peter C. Van Metre, Barbara Mahler
Trends in chemical concentration in sediment cores from three lakes in New Jersey and one lake on Long Island, New York
Sediment cores were extracted from three lakes in northeastern New Jersey and one lake on western Long Island, New York, as part of the U.S. Geological Survey National Water-Quality Assessment Program. Sediment layers were dated by use of cesium-137 (137Cs), copper, lead, or dichlorodiphenyl-trichloroethane (DDT) profiles. Sediment layers were analyzed for seven selected trace elements, including
Authors
Gary R. Long, Edward C. Callender, Mark A. Ayers, Peter C. Van Metre
Spatial distribution and trends in trace elements, polycyclic aromatic hydrocarbons, organochlorine pesticides, and polychlorinated biphenyls in Lake Worth sediment, Fort Worth, Texas
In spring 2000, the Texas Department of Health issued a fish consumption advisory for Lake Worth in Fort Worth, Texas, because of elevated concentrations of polychlorinated biphenyls (PCBs) in fish. In response to the advisory and in cooperation with the U.S. Air Force, the U.S. Geological Survey collected 21 surficial sediment samples and three gravity core sediment samples to assess the spatial
Authors
Glenn Richard Harwell, Peter C. Van Metre, Jennifer T. Wilson, Barbara Mahler
Chemical quality of water, sediment, and fish in Mountain Creek Lake, Dallas, Texas, 1994-97
The occurrence, trends, and sources of numerous inorganic and organic contaminants were evaluated in Mountain Creek Lake, a reservoir in Dallas, Texas. The study, done in cooperation with the Southern Division Naval Facilities Engineering Command, was prompted by the Navy’s concern for potential off-site migration of contaminants from two facilities on the shore of Mountain Creek Lake, the Naval A
Authors
Peter C. Van Metre, S.A. Jones, J. Bruce Moring, B.J. Mahler, Jennifer T. Wilson
A simplified approach for monitoring hydrophobic organic contaminants associated with suspended sediment: Methodology and applications
Hydrophobic organic contaminants, although frequently detected in bed sediment and in aquatic biota, are rarely detected in whole-water samples, complicating determination of their occurrence, load, and source. A better approach for the investigation of hydrophobic organic contaminants is the direct analysis of sediment in suspension, but procedures for doing so are expensive and cumbersome. We de
Authors
B.J. Mahler, P. C. Van Metre
Urban sprawl leaves its PAH signature
The increasing vehicle traffic associated with urban sprawl in the United States is frequently linked to degradation of air quality, but its effect on aquatic sediment is less well-recognized. This study evaluates trends in PAHs, a group of contaminants with multiple urban sources, in sediment cores from 10 reservoirs and lakes in six U.S. metropolitan areas. The watersheds chosen represent a rang
Authors
P. C. Van Metre, B.J. Mahler, E. T. Furlong
Similar rates of decrease of persistent, hydrophobic and particle-reactive contaminants in riverine systems
Although it is well-known that concentrations of anthropogenic radionuclides and organochlorine compounds in aquatic systems have decreased since their widespread release has stopped in the United States, the magnitude and variability of rates of decrease are not well-known. Paleolimnological studies of reservoirs provide a tool for evaluating these long-term trends in riverine systems. Rates of d
Authors
Peter C. Van Metre, Jennifer T. Wilson, Edward Callender, Christopher C. Fuller
Environmental policy analysis, peer reviewed: Reservoir sediment cores show US lead declines
As a result of the Clean Air Act, lead (Pb) emissions to the atmosphere have been greatly reduced since the mid-1970s. As part of its National Water Quality Assessment, the U.S. Geological Survey has been using paleolimnological techniques to assess past trends in hydrophobic contaminants. In urban-suburban environments, reservoir sediment cores show prominent peaks in Pb distributions that correl
Authors
Edward Callender, Peter C. Van Metre
Effects of uranium-mining releases on ground-water quality in the Puerco River Basin, Arizona and New Mexico
Shallow ground water beneath the Puerco River of Arizona and New Mexico was studied to determine the effects of uranium-mining releases on water quality. Ground-water samples collected from 1989 to 1991 indicate that concentrations of dissolved uranium have decreased. Most samples from the alluvial aquifer downstream from Gallup, New Mexico, met with U.S. Environmental Protection Agency's maximum
Authors
Peter C. Van Metre, Laurie Wirt, T. J. Lopes, S.A. Ferguson
A land-use and water-quality history of White Rock Lake Reservoir, Dallas, Texas, based on paleolimnological analyses
White Rock Lake reservoir in Dallas, Texas contains a 150-cm sediment record of silty clay that documents land-use changes since its construction in 1912. Pollen analysis corroborates historical evidence that between 1912 and 1950 the watershed was primarily agricultural. Land disturbance by plowing coupled with strong and variable spring precipitation caused large amounts of sediment to enter the
Authors
Bradbury J. Platt, P. C. Van Metre
Science and Products
Filter Total Items: 31
No results found.
Filter Total Items: 88
Trends in hydrophobic organic contaminants in urban and reference lake sediments across the United States, 1970-2001
A shift in national policy toward stronger environmental protection began in the United States in about 1970. Conversely, urban land use, population, energy consumption, and vehicle use have increased greatly since then. To assess the effects of these changes on water quality, the U.S. Geological Survey used sediment cores to reconstruct water-quality histories for38 urban and reference lakes acro
Authors
P. C. Van Metre, B.J. Mahler
Contaminant trends in reservoir sediment cores as records of influent stream quality
When reconstructing water-quality histories from lake and reservoir cores, it is sometimes assumed that the chemical signatures in the cores reflect historical water quality in the influent streams. To investigate this assumption, concentrations of metals, PAHs, and organochlorine compounds in sediment cores were compared to those associated with an influent-stream suspended sediment for three res
Authors
P. C. Van Metre, B.J. Mahler
The contribution of particles washed from rooftops to contaminant loading to urban streams
Rooftops are both a source of and a pathway for contaminated runoff in urban environments. To investigate the importance of particle-associated contamination in rooftop runoff, particles washed from asphalt shingle and galvanized metal roofs at sites 12 and 102 m from a major expressway were analyzed for major and trace elements and PAHs. Concentrations and yields from rooftops were compared among
Authors
Peter C. Van Metre, Barbara Mahler
Trends in chemical concentration in sediment cores from three lakes in New Jersey and one lake on Long Island, New York
Sediment cores were extracted from three lakes in northeastern New Jersey and one lake on western Long Island, New York, as part of the U.S. Geological Survey National Water-Quality Assessment Program. Sediment layers were dated by use of cesium-137 (137Cs), copper, lead, or dichlorodiphenyl-trichloroethane (DDT) profiles. Sediment layers were analyzed for seven selected trace elements, including
Authors
Gary R. Long, Edward C. Callender, Mark A. Ayers, Peter C. Van Metre
Spatial distribution and trends in trace elements, polycyclic aromatic hydrocarbons, organochlorine pesticides, and polychlorinated biphenyls in Lake Worth sediment, Fort Worth, Texas
In spring 2000, the Texas Department of Health issued a fish consumption advisory for Lake Worth in Fort Worth, Texas, because of elevated concentrations of polychlorinated biphenyls (PCBs) in fish. In response to the advisory and in cooperation with the U.S. Air Force, the U.S. Geological Survey collected 21 surficial sediment samples and three gravity core sediment samples to assess the spatial
Authors
Glenn Richard Harwell, Peter C. Van Metre, Jennifer T. Wilson, Barbara Mahler
Chemical quality of water, sediment, and fish in Mountain Creek Lake, Dallas, Texas, 1994-97
The occurrence, trends, and sources of numerous inorganic and organic contaminants were evaluated in Mountain Creek Lake, a reservoir in Dallas, Texas. The study, done in cooperation with the Southern Division Naval Facilities Engineering Command, was prompted by the Navy’s concern for potential off-site migration of contaminants from two facilities on the shore of Mountain Creek Lake, the Naval A
Authors
Peter C. Van Metre, S.A. Jones, J. Bruce Moring, B.J. Mahler, Jennifer T. Wilson
A simplified approach for monitoring hydrophobic organic contaminants associated with suspended sediment: Methodology and applications
Hydrophobic organic contaminants, although frequently detected in bed sediment and in aquatic biota, are rarely detected in whole-water samples, complicating determination of their occurrence, load, and source. A better approach for the investigation of hydrophobic organic contaminants is the direct analysis of sediment in suspension, but procedures for doing so are expensive and cumbersome. We de
Authors
B.J. Mahler, P. C. Van Metre
Urban sprawl leaves its PAH signature
The increasing vehicle traffic associated with urban sprawl in the United States is frequently linked to degradation of air quality, but its effect on aquatic sediment is less well-recognized. This study evaluates trends in PAHs, a group of contaminants with multiple urban sources, in sediment cores from 10 reservoirs and lakes in six U.S. metropolitan areas. The watersheds chosen represent a rang
Authors
P. C. Van Metre, B.J. Mahler, E. T. Furlong
Similar rates of decrease of persistent, hydrophobic and particle-reactive contaminants in riverine systems
Although it is well-known that concentrations of anthropogenic radionuclides and organochlorine compounds in aquatic systems have decreased since their widespread release has stopped in the United States, the magnitude and variability of rates of decrease are not well-known. Paleolimnological studies of reservoirs provide a tool for evaluating these long-term trends in riverine systems. Rates of d
Authors
Peter C. Van Metre, Jennifer T. Wilson, Edward Callender, Christopher C. Fuller
Environmental policy analysis, peer reviewed: Reservoir sediment cores show US lead declines
As a result of the Clean Air Act, lead (Pb) emissions to the atmosphere have been greatly reduced since the mid-1970s. As part of its National Water Quality Assessment, the U.S. Geological Survey has been using paleolimnological techniques to assess past trends in hydrophobic contaminants. In urban-suburban environments, reservoir sediment cores show prominent peaks in Pb distributions that correl
Authors
Edward Callender, Peter C. Van Metre
Effects of uranium-mining releases on ground-water quality in the Puerco River Basin, Arizona and New Mexico
Shallow ground water beneath the Puerco River of Arizona and New Mexico was studied to determine the effects of uranium-mining releases on water quality. Ground-water samples collected from 1989 to 1991 indicate that concentrations of dissolved uranium have decreased. Most samples from the alluvial aquifer downstream from Gallup, New Mexico, met with U.S. Environmental Protection Agency's maximum
Authors
Peter C. Van Metre, Laurie Wirt, T. J. Lopes, S.A. Ferguson
A land-use and water-quality history of White Rock Lake Reservoir, Dallas, Texas, based on paleolimnological analyses
White Rock Lake reservoir in Dallas, Texas contains a 150-cm sediment record of silty clay that documents land-use changes since its construction in 1912. Pollen analysis corroborates historical evidence that between 1912 and 1950 the watershed was primarily agricultural. Land disturbance by plowing coupled with strong and variable spring precipitation caused large amounts of sediment to enter the
Authors
Bradbury J. Platt, P. C. Van Metre