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Contamination and pollution
Introduction of harmful substances into the environment by human action or natural processes.
Subtopics:
Nonpoint-source pollution (3 items)
Industrial pollution (5 items)
Pesticide and herbicide contamination (12 items)
Toxic radionuclide contamination (3 items)
Toxic trace element contamination (15 items)
Pharmaceutical contamination (2 items)

Water pollution (9 items)
Soil pollution (1 items)
Air pollution (6 items)
Related topics:
Results 61 - 70 of 108 listed by similarity [list alphabetically]
Ecological risk assessment of toxic substances in the South Florida ecosystem: wildlife effects and exposure assessment [New Window]
Project summaries and publications on wildlife contaminant exposures and prediction and monitoring of future restoration-driven exposures within the South Florida ecosystems.
Environment [New Window]
Links to USGS activities in the environment theme area, including anthropogenic and natural contaminants, ecosystems, energy, human health, global change, etc. Also includes links to environment-related fact sheets.
Environmental mercury mapping, modeling, and analysis [New Window]
Online tools for mapping mercury data in the environment, with downloadable data from monitoring studies
Environmental studies of the World Trade Center area after the September 11, 2001 attack [New Window]
Report describing the results of an interdisciplinary environmental study of the World Trade Center (WTC) area after the attack on September 11, 2001. The investigations included imaging spectroscopy mapping and laboratory analysis.
Florida Integrated Science Center - Gainesville [New Window]
Florida Integrated Science Center at Gainesville is the Center for Aquatic Resource Studies in Florida and southeastern United States. Site has links to projects on manatees, contaminants, invasive plants and animals, Everglades, and aquatic resources.
Fragile environments: San Francisco Bay wetlands [New Window]
Overview with links to studies on the effects of human activity on the San Francisco estuary with loss of historic fresh and saltwater tidal marshes reducing habitats, introducing contaminants in waste, and creating dredging problems.
Galloway Township, New Jersey research site, Toxic Substances Hydrology Program [New Window]
This site provides information on investigations of hydrocarbons in the unsaturated zone and shallow ground water at a gasoline-spill site in Galloway Township, N.J., with links to research projects, mathematical models, and photos.
Geologic studies of mercury [New Window]
Collection of six short papers related to the mercury geochemical society, the study of mercury in coal, concentrations in sediment, soil, water, and fish collected near mercury and gold mines, and volanic emissions of mercury.
Geospatial technology activities at Columbia Environmental Research Center (CERC) [New Window]
Short descriptions and links to further information on projects using digital image processing, remote sensing, GIS and GPS technologies at the Columbia Environmental Research Center (CERC) in Missouri for biology and geomorphology research.
Gulf of the Farallones disposal issues: disposal and waste disposal [New Window]
Study of the effects on the Gulf of the Farallones National Marine Sanctuary resulting from the disposal of San Francisco dredged material and barrels of low-level radioactive waste with links to publications and atlas with digital images.
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