Introduction to nonpoint-source pollution and wetland mitigation

Technical Report · Thu Sep 12 00:00:00 EDT 1991

OSTI ID:6914026

Baker, L A

Nonpoint source pollution (NPS) is the major cause of impairment of U.S. surface waters. Erosion from croplands has been declining but is not yet reflected in decreased sediment yield or phosphorus concentrations in the nation's rivers. Nitrogen pollution is of particular concern in eutophication of estuaries as a contaminant of groundwater, and as an acidifying agent in atmospheric deposition. Nitrogen fertilizer and emissions of nitrous oxides are major contributors to the problem. The outlook on pesticides is mixed: bans on organochlorine pesticides in the 1970s have resulted in decreasing concentrations in fish tissue; however, herbicides are now a problem for some surface and groundwater sources of drinking water, especially in the Upper Midwest.

• Research Organization: Minnesota Univ., St. Paul, MN (United States). Water Resources Research Center
• OSTI ID: 6914026
• Report Number(s): PB-93-106953/XAB
• Resource Relation: Other Information: Pub. in Ecological Engineering, v1 p1-26 1992. Sponsored by Corvallis Environmental Research Lab., OR
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
29 ENERGY PLANNING
POLICY AND ECONOMY
01 COAL, LIGNITE, AND PEAT
GROUND WATER
WATER POLLUTION
SURFACE WATERS
WETLANDS
ECOLOGICAL CONCENTRATION
ESTUARIES
EUTROPHICATION
FERTILIZERS
HERBICIDES
METALS
MONITORING
NITROUS OXIDE
PESTICIDES
PHOSPHORUS
POLLUTION SOURCES
AQUATIC ECOSYSTEMS
CHALCOGENIDES
ECOSYSTEMS
ELEMENTS
HYDROGEN COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
POLLUTION
WATER
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
540220 - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)
290301 - Energy Planning & Policy- Environment
Health
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010900 - Coal
Lignite
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