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Hazardous Substance Release/Health Effects Database Internet URL http://www.atsdr.cdc.gov/hazdat.html Sponsoring Agency Agency for Toxic Substances and Disease Registry, U.S. Department of Health and Human Services Description The Hazardous Substance Release/Health Effects Database (HAZDAT) is a scientific and administrative database developed to provide access to information on the release of hazardous substances, toxins, and pollutants from Superfund sites or from emergency events. It also provides public health information on the effects of hazardous substances on the health of human populations and on the environment. Related Topics Environmental Health Toxic Substance Review Date 1/21/2004

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