http://www.epa.gov/ecotox - This site contains a searchable toxicology database. http://www.epa.gov/water - This site contains good information ranging from watershed protection to water quality with links to many programs in the US EPA.
http://www.umanitoba.ca - This link takes you to the
University of Manitoba. (refer to Experimental Lakes Area in Canada where whole lake and watershed research is carried out by researchers from around the world).
http://www.edenresearch.info - This site takes you to the document produced as the Prague Declaration on Endocrine Disruption.
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