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1247293 
Data & Software 
Database 
Benzo(a)pyrene [CASRN 50-32-8] 
Hazardous Substances Data Bank :: HSDB 
2012 
National Library of Medicine 
Bethesda, MD 
English 
uses data from 3036233 Hazardous substances data bank
CLASSIFICATION: B2; probable human carcinogen. BASIS FOR CLASSIFICATION: Human data specifically linking benzo(a)pyrene (BAP) to a carcinogenic effect are lacking. There are, however, multiple animal studies in many species demonstrating BAP to be carcinogenic following administration by numerous routes. BAP has produced positive results in numerous genotoxicity assays. NOTE: At the June, 1992 CRAVE Work Group meeting, a revised risk estimate for benzo(a)pyrene was verified. ... The Carcinogenicity Background Document provides details on the rationale and methods used to derive the carcinogenicity values found in IRIS. ... HUMAN CARCINOGENICITY DATA: Inadequate. ANIMAL CARCINOGENICITY DATA: Sufficient. /Based on former classification system/

[U.S. Environmental Protection Agency's Integrated Risk Information System (IRIS) on Benzo(a)pyrene (BaP) (50-32-8) Available from, as of March 15, 2000. http://www.epa.gov/iris/ **PEER REVIEWED** 
IRIS
• Benzo(a)pyrene (BaP)
     Considered
     Cited