1Paul G Rogers.The clean air act of 1970[EB/OL].http://www.epa.gov/history/topics/caa70/11.htm.
2Environmental Protection Agency.Highlights of the 1990 clean air act amendments[EB/OL].http://www.epa.gov/history/topics/caa90/01.htm.
3Environmental Protection Agency.EPA announces biggest air toxic reduction in agency history[EB/OL].http://www.epa.gov/history/topics/caa90/11.htm,1994-03-01.
4Organization for Economic Cooperation and Development.Environmental performance reviews:United States[R].Paris:OECD,2006.
5Derived from environmental history timeline[EB/OL].http://www.radford.edu/～ wkovarik/envhist/7forties.html.
6Claudia Copeland.Summaries of environmental laws administered by the EPA:clean water act.Congressional Research Service Report,RL30022[Z].
7United States Government Printing Office.Oil pollution prevention:code of federal regulations,Title 40,Volume 19(CITE:40CFR112.1)[EB/OL].http://www.access.gpo.gov/nara/cfr/waisidx_ 03/40cfr112 _ 03.html.
8United States Government.Federal water pollution control act (As amended through P.L.107-303,November 27,2002)[EB/OL].http://www.epa.gov/region5/water/pdf/ecwa_ t1.pdf.
9Environment,safety,and health online[EB/OL].http://www.ehso.com/oilspills.php.
10Environmental Protection Agency Region 2,"Love Canal,New York",EPA ID #:NYD000606947,NPL Listing History[EB/OL].http://www.epa.gov/ region2/ superfund/ npl/0201290c.pdf.
