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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 11 - 20 of 108 listed by similarity [list alphabetically]
Biological resource status and trends: Contaminants [New Window]
Information concerning status and trends of biological resources, focusing on contaminants
Biological resource status and trends: Contaminants in animals [New Window]
Information concerning status and trends of biological resources, focusing on contaminants in animals
Biological resource status and trends: Contaminants in plants [New Window]
Information concerning status and trends of biological resources, focusing on contaminants in plants
Effects of land use on water quality in Michigan [New Window]
Links to projects that provide information on the relation of land use to water quality, sources of pollutants, or trends in water quality.
Framework for Assessing the Sustainability of Monitored Natural Attenuation [New Window]
Research findings and examples of application to real problems--When can natural processes to reduce, or even destroy, contaminants at toxic waste sites be relied on?
Ground-water monitoring for pesticides in Wyoming [New Window]
Sampling program to determine if pesticides are present in ground water, in accordance with Wyoming's Generic State Management Plan for Pesticides in Ground Water (SMP).
Household Chemicals and Drugs Found in Biosolids from Wastewater Treatment Plants [New Window]
Research findings and examples of application to real problems--biosolids have high concentrations of household contaminants compared to treated liquid wastewater effluent.
Maps of the distribution and occurrence of ground water quality constituents and early 1970's land use in New Jersey [New Window]
Links to maps of New Jersey showing nitrate levels, pesticides, Total Volatile Organic Compounds (VOCs), and radium in wells and land use of the 1970s.
Mercury contamination of aquatic ecosystems [New Window]
Fact sheet on mercury bioaccumulation and cycling in the environment. Also available in PDF format.
National Water Quality Assessment urban studies portal [New Window]
Multiple studies addressing urban water-quality issues, to describe biological, chemical, and physical characteristics of urban water resources over time, and relate those characteristics to natural processes and human activities
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