Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Nonpoint Pollution"”.
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Controlling nonpoint pollution in Virginia's urbanizing areas: an institutional perspective
… in the implementation and enforcement of nonpoint source (NPS) pollution control measures in the state's urbanizing areas. The institutional framework is developed primarily around the existing governmental framework. The federal, state and local roles are examined in terms of the relevant …
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Evaluation on an on-site stormwater treatment device for sediment flux mitigation in the Lake Tahoe basin
<p>Pollution from nonpoint sources is a leading cause of receiving water quality impairment. The largest source of nonpoint pollution is storm water runoff, which includes pollutants such as sediment, nutrients, metals, microorganisms, and organic compounds. Sediment is of particular importance …
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Modeling Soil Erosion in the Upper Green River, KY
… contributing sediments to channels mainly as nonpoint pollution resulting from land-use and agricultural practices and leading to sedimentation downstream and downwind, a decrease in the transport capacity of streams, increase in the risk of flooding, filling reservoirs, and eutrophication. A …
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Nitrogen recommendation systems, weather effects on nitrogen response, and the prediction of nitrogen response in Illinois
… wasteful, and is a source of point and nonpoint pollution affecting the health of humans and ecosystems alike. Under-application of N decreases yield and profitability. While advances have been made in the development of guidelines for N rates, the ability to predict site-specific …
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Essays on Water Quality Management for the Chesapeake Bay Watershed
… cost-effective ways to mitigate water pollution from agricultural nonpoint pollution sources and explore farmers' incentives when participating in water quality trading programs. Chapter 1 investigates landscape targeting of best management practices (BMPs) based on topographic index …
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Release and Transport of Bacteria and Nutrients from Livestock Manure Applied to Pastureland
… of fecal bacteria and nutrients from point and nonpoint sources to surface water bodies is of significant concern in Virginia and the United States. In Virginia, 4,320 river miles are impaired for one or more beneficial use and 72% of the streams are impaired due to pathogen indicators (VDEQ, …
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Development of Effective Procedures for Illicit Discharge Risk Mapping
Authorities of municipal separate storm sewer systems (MS4s) are required to address illicit discharges as part of the National Pollutant Discharge Elimination System (NPDES) stormwater program. Field reconnaissance is an effective measure to detect and identify illicit discharges, but requires …