Document Detail

Dynamics of diffuse pollution from US southern watersheds.
MedLine Citation:
PMID:  11394789     Owner:  NLM     Status:  MEDLINE    
To understand the effects of diffuse pollution information on the source of pollutants, quantities in transport, mode of transport, transient nature of the pollution event, and most importantly, a consideration of remediation efforts need to be known. For example, water quality research in the Yazoo Basin uplands in Mississippi has shown sediment loads from a conventional-till upland soybean watershed to be about 19,000kg/ha/yr, and responsible for 77-96% of P and N in transport. In contrast, sediment loads from a comparable no-till soybean watershed were only 500 kg/ha/yr. transporting about 31% of P and N in transport. Sediment loads from a nearby forested area were low, about 200 kg/ha/yr, but responsible for about 47-76% of P and N in transport. Transient pollution events are responsible for the transport of large quantities of sediment, nutrients, and pesticides; in some storm events nearly the annual load. Best management practices (BMPs) must be designed to remediate diffuse pollution and the transient nature of pollution events which can have a profound effect on the ecological health of steams and reservoirs.
J D Schreiber; R A Rebich; C M Cooper
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Water research     Volume:  35     ISSN:  0043-1354     ISO Abbreviation:  Water Res.     Publication Date:  2001 Jul 
Date Detail:
Created Date:  2001-06-07     Completed Date:  2001-10-25     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  0105072     Medline TA:  Water Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  2534-42     Citation Subset:  IM    
USDA-ARS-National Sedimentation Laboratory, Oxford, MS 38655, USA.
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MeSH Terms
Chemical Precipitation
Environmental Monitoring
Fresh Water / analysis*,  chemistry
Nitrates / analysis
Nitrogen / analysis
Phosphates / analysis
Phosphorus / analysis
Quaternary Ammonium Compounds / analysis
United States
Water Pollution, Chemical / analysis*
Reg. No./Substance:
0/Nitrates; 0/Phosphates; 0/Quaternary Ammonium Compounds; 7723-14-0/Phosphorus; 7727-37-9/Nitrogen

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