The U.S.Experience in Dealing with Non-point Source Pollution to Rivers and Lakes
This paper provides a brief overview of the sources and technologies in preventing and controlling nonpoint source pollution in the United States.The sources identified generally include precipitation,land runoff,infiltration,drainage,seepage,hydrologic modification,and/or atmospheric deposition.It is recognized that nonpoint source pollutants that cause the greatest impacts are sediments,nutrients,toxic compounds,organic matter,and pathogens.In response to these sources and pollutants,the US Environmental Protection Agency (EPA) has provided a range of guidelines and technologies to palliate the effect of non-point source pollution on water bodies such as rivers,lakes,wetlands,coastal waters,and ground water.Authorized by the US Congress,EPA in 1987 established Section 319 in the Clean Water Act,which provides financial resources to state governments to fight non-point source pollution.Since agricultural production is recognized as a major contributor to the non-point source pollution,a host of different technologies have been developed and implemented.The effectiveness of many such technologies in controlling non-point source pollution is also discussed in this paper.
Jun Zhu
Biological and Agricultural Engineering Department, University of Arkansas, Fayetteville, AR 72701, USA
国际会议
合肥
英文
86-95
2014-05-16（万方平台首次上网日期，不代表论文的发表时间）