Agency for Toxic Substances and Disease Registry (ATSDR)
   Charged under U.S. CERCLA statute to assess the presence and nature of health hazards at Superfund sites and to help reduce further exposures. Website has toxicity profiles for hazardous chemicals and extensive information on topics such as multiple chemi
   http://www.atsdr.cdc.gov

Ban CCA.org
   Online reference for concerned consumers and end users of Copper Chromated Arsenate (CCA) pressure treated wood. Provides health hazard information and links on the health hazards of CCA, arsenic and chromium exposure.
   http://www.bancca.org/

CDC's Second National Report on Human Exposure to Environmental Chemicals
   Centers for Disease Control and Prevention Second National Report on Human Exposure to Environmental Chemicals. Ongoing assessment of the exposure of the U.S. population to environmental chemicals using biomonitoring.
   http://www.cdc.gov/exposurereport/

Chem-Tox.Com
   Index provides links to research about health disorders resulting from exposure to common chemicals and pesticides.
   http://www.chem-tox.com/

Chemical Industry Archives
   Searchable database of internal chemical industry documents dating from the last 50 years. A project of the Environmental Working Group. Has chemical news, articles, background information and contacts.
   http://www.chemicalindustryarchives.org

DAIN Metadatabase of Resources for Environmental Chemicals
   A database of separate databases. Search by type of database, use of chemicals, type of information and/or descriptors.
   http://dino.wiz.uni-kassel.de/dain/search2.html

Global Campaign to Reduce the Use of Toxic Chemicals
   Information from the WWF on toxic chemicals in the environment. Focus on endocrine disruptors, persistant organic pesticides (POPs) and agricultural pesticides.
   http://www.worldwildlife.org/toxics/

Human and Environmental Risk Assessment
   The HERA project is a European voluntary initiative launched by the suppliers and manufacturers, AISE and CEFIC, of household cleaning products to provide a common risk assessment framework. Provides news, risk assessment results and resources.
   http://www.heraproject.com/

International Programme on Chemical Safety INCHEM Database
   Provides information on chemicals affecting the environment and human health from internationally peer-reviewed chemical safety-related publications and databases.
   http://www.inchem.org/

National Library of Medicine (NLM)
   Information and index on toxicology, environmental health, HIV, and AIDS. Search toxicology and chemical information databases from Specialized Information Services (SIS).
   http://sis.nlm.nih.gov/

PCBs: Farmed Salmon vs. Wild Salmon - Is Farmed Salmon safe to eat?
   Discusses various reports on safety and guidelines by various health agencies.
   http://www.healthcastle.com/farmed-salmon.shtml

Pesticides, Metals, Chemical Contaminants and Natural Toxins
   Program area the Center for Food Safety and Applied Nutrition (CFSAN) with links to information about these toxins.
   http://vm.cfsan.fda.gov/~lrd/pestadd.html

Protecting Our Health
   Consumer-oriented summary of research on environmental toxins, with peer-reviewed summaries and abstracts of published studies. Covers specific disorders such as infertility, asthma, childhood leukemia, and other cancers.
   http://www.protectingourhealth.org/

TRIFacts.org
   Provides information on US EPA toxic release inventory data for dioxin. Links to other resources.
   http://www.trifacts.org/

The Vermiculite Institute
   Organized by vermiculite mining companies, processors, and users to promote the many uses of vermiculite and to address concerns about the health and safety of using vermiculite.
   http://www.vermiculiteinstitute.org

Tox Town
   Illustrated guide to commonly encountered toxic chemicals, environmental health risks, and the public's health, from the U.S. National Library of Medicine.[Requires Flash]
   http://toxtown.nlm.nih.gov/