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Search by Human Carcinogenicity
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The search by Evidence for Human Carcinogenicity allows you to search the IRIS database to identify substances by weight-of-evidence classifications established by EPA using the 1986, 1996, 1999, and 2005 Guidelines for Carcinogen Risk Assessment. These guidelines reflect the evolution of the science in this area and the corresponding evolution of the Agency’s approach to characterizing weight-of-evidence for human carcinogenicity.