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Nutrient pollution of coastal rivers, bays, and seas

September 1, 2000

Over the past 40 years, antipollution laws have greatly reduced discharges of toxic substances into our coastal waters. This effort, however, has focused largely on point-source pollution of industrial and municipal effluent. No comparable effort has been made to restrict the input of nitrogen (N) from municipal effluent, nor to control the flows of N and phosphorus (P) that enter waterways from dispersed or nonpoint sources such as agricultural and urban runoff or as airborne pollutants. As a result, inputs of nonpoint pollutants, particularly N, have increased dramatically. Nonpoint pollution from N and P now represents the largest pollution problem facing the vital coastal waters of the United States.

Publication Year 2000
Title Nutrient pollution of coastal rivers, bays, and seas
Authors Robert Howarth, Donald Anderson, James Cloern, Chris Elfring, Charles Hopkinson, Brian Lapointe, Tom Malone, Nancy Marcus, Karen McGlathery, Andrew N. Sharpley, Dan Walker
Publication Type Article
Publication Subtype Journal Article
Series Title Issues in Ecology
Index ID 70185674
Record Source USGS Publications Warehouse
USGS Organization Toxic Substances Hydrology Program