http://www.epa.gov/tri/ The EPA's Toxic Release Inventory Program has a Web site containing data collections, regulatory information, and national and international TRI topics can be browsed alphabetically.
http://www.oehha.ca.gov/prop65.html California's Office of Environmental Health Hazard Assessment has a Web site about Proposition 65 with an exhaustive collection of documents, a current list of chemicals known to cause cancer, and a wealth of information regarding policy and procedure.
