Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5568
Pesticide degradates: Monitoring and occurrence Pesticide degradates: Monitoring and occurrence
No abstract available.
Authors
D.W. Kolpin, W.A. Battaglin, M. T. Meyer, D.J. Schnoebelen, S. J. Kalkhoff
Hydrogeology and ground-water-flow simulation in the former airfield area of Naval Support Activity Mid-South, Millington, Tennessee Hydrogeology and ground-water-flow simulation in the former airfield area of Naval Support Activity Mid-South, Millington, Tennessee
Naval Support Activity Mid-South is a Department of the Navy base located in Millington, Tennessee. The facility was home to the Naval Aviation Technical Training Center from 1943 until 1996. As part of the Base Closure and Realignment Act of 1990, the primary training mission of the facility was realigned and most of the northern part of the base, referred to as the Northside and...
Authors
Connor J. Haugh, John K. Carmichael, David E. Ladd
Effects of changes in reservoir operations on water quality and trophic state indicators in Voyageurs National Park, northern Minnesota, 2001-03 Effects of changes in reservoir operations on water quality and trophic state indicators in Voyageurs National Park, northern Minnesota, 2001-03
Implementation of an order by the International Joint Commission in January 2000 has changed operating procedures for dams that regulate two large reservoirs in Voyageurs National Park in northern Minnesota. These new procedures were expected to restore a more natural water regime and affect water levels, water quality, and trophic status. Results of laboratory analyses and field...
Authors
Victoria G. Christensen, G. A. Payne, Larry W. Kallemeyn
The effects of urbanization on the biological, physical, and chemical characteristics of coastal New England streams The effects of urbanization on the biological, physical, and chemical characteristics of coastal New England streams
During August 2000, responses of biological communities (invertebrates, fish, and algae), physical habitat, and water chemistry to urban intensity were compared among 30 streams within 80 miles of Boston, Massachusetts. Sites chosen for sampling represented a gradient of the intensity of urban development (urban intensity) among drainage basins that had minimal natural variability. In...
Authors
James F. Coles, Thomas F. Cuffney, Gerard McMahon, Karen M. Beaulieu
Watershed sustainability: Downstream effects of timber harvest in the Ozarks of Missouri Watershed sustainability: Downstream effects of timber harvest in the Ozarks of Missouri
The downstream effects of timber harvest in the Ozarks of Missouri can be evaluated by analogy to other geographic areas and by historical analysis of responses to past land use activities. Based on research from other geographic regions, timber harvest in the Ozarks would be expected to have minor effects on annual water yield and dissolved-phase water quality. The potential exists for...
Authors
Robert B. Jacobson
Ecology for a crowded planet Ecology for a crowded planet
Within the next 50 to 100 years, the support and maintenance of an extended human family of 8 to 11 billion people will be difficult at best. The authors of this Policy Forum describe changes that are required if we hope to meet the needs and aspirations of humans while improving the health of our planet's ecosystems. Problems as diverse as disease transmission and global climate change...
Authors
Margaret Palmer, Emily S. Bernhardt, Elizabeth A. Chornesky, Scott L. Collins, Andrew Dobson, Clifford S. Duke, Barry Gold, Robert Jacobson, Sharon E. Kingsland, Rhonda H. Kranz, Michael J. Mappin, M. Luisa Martinez, Fiorenza Micheli, Jennifer L. Morse, Michael L. Pace, Mercedes Pascual, Stephen S. Palumbi, O. J. Reichman, Ashley Simons, Alan R. Townsend, Monica Turner
The H4IIE cell bioassay as an indicator of dioxin-like chemicals in wildlife and the environment The H4IIE cell bioassay as an indicator of dioxin-like chemicals in wildlife and the environment
The H4IIE cell bioassay has proven utility as a screening tool for planar halogenated hydrocarbons (PHHs) and structurally similar chemicals accumulated in organisms from the wild. This bioassay has additional applications in hazard assessment of PHH exposed populations. In this review, the toxicological principles, current protocols, performance criteria, and field applications for the...
Authors
J.J. White, C.J. Schmitt, D. E. Tillitt
Distribution of methyl tert-butyl ether (MTBE) and selected water-quality constituents in the surficial aquifer at the Dover National Test Site, Dover Air Force Base, Delaware, 2001 Distribution of methyl tert-butyl ether (MTBE) and selected water-quality constituents in the surficial aquifer at the Dover National Test Site, Dover Air Force Base, Delaware, 2001
A joint study by the Dover National Test Site, Dover Air Force Base, Delaware, and the U.S. Geological Survey was conducted from June 27 through July 18, 2001, to determine the spatial distribution of the gasoline oxygenate additive methyl tert-butyl ether and selected water-quality constituents in the surficial aquifer underlying the Dover National Test Site. This report provides a...
Authors
Marie Stewart, William R. Guertal, Jeffrey R. Barbaro, Timothy J. McHale
Urbanization impacts on the structure and function of forested wetlands Urbanization impacts on the structure and function of forested wetlands
The exponential increase in population has fueled a significant demographic shift: 60% of the Earth's population will live in urban areas by 2030. While this population growth is significant in its magnitude, the ecological footprint of natural resource consumption and use required to sustain urban populations is even greater. The land use and cover changes accompanying urbanization...
Authors
Stephen Faulkner
Introduction: Wetlands in urban watersheds Introduction: Wetlands in urban watersheds
No abstract available.
Authors
Stephen Faulkner
Simulated interaction between freshwater and saltwater and effects of ground-water pumping and sea-level change, lower Cape Cod aquifer system, Massachusetts Simulated interaction between freshwater and saltwater and effects of ground-water pumping and sea-level change, lower Cape Cod aquifer system, Massachusetts
The U.S. Geological Survey, in cooperation with the National Park Service, Massachusetts Executive Office of Environmental Affairs, Cape Cod Commission, and the Towns of Eastham, Provincetown, Truro, and Wellfleet, began an investigation in 2000 to improve the understanding of the hydrogeology of the four freshwater lenses of the Lower Cape Cod aquifer system and to assess the effects of...
Authors
John P. Masterson
Water quality in the New England coastal basins, Maine, New Hampshire, Massachusetts, and Rhode Island, 1999-2001 Water quality in the New England coastal basins, Maine, New Hampshire, Massachusetts, and Rhode Island, 1999-2001
This report contains the major findings of a 1999-2001 assessment of water quality in the New England Coastal Basins. It is one of a series of reports by the National Water-Quality Assessment (NAWQA) Program that present major findings in 51 major river basins and aquifer systems across the Nation. In these reports, water quality is discussed in terms of local, State, and regional issues
Authors
Keith W. Robinson, Sarah M. Flanagan, Joseph D. Ayotte, Kimberly W. Campo, Ann Chalmers, James F. Coles, Thomas F. Cuffney