Benzo[a]pyrene

50-32-8

3,4-Benzopyrene; BaP; 3,4-Benz(a)pyrene; BP; Benzopyrene; NSC 21914

Component of coal tar, diesel emissions, and smoke resulting from combustion of organic material, including tobacco smoke

Last CHHSL revision:	1/2005
CHHSL Comments:	For chemical-specific screening levels for use in assessing contaminated sites, please see HHRA Note 3 (DTSC HERO). https://www.dtsc.ca.gov/assessingrisk/humanrisk2.cfm

Latest Criteria:	California Public Health Goals
Inhalation Unit Risk (μg/cubic meter)-1:	1.1 E-3
Inhalation Slope Factor (mg/kg-day)-1:	3.9 E+0
Oral Slope Factor (mg/kg-day)-1:	2.9 E+0
Comments/References:	OEHHA 2010. Public Health Goal for Benzo(a)pyrene in Drinking Water. Note: The oral slope factor was adjusted by a combined age sensitivity factor of 1.7 to account for a 70-year lifetime exposure and increased sensitivity during early-in-life exposures. OEHHA 2009. Air Toxics Hot Spots Program Technical Support Document for Cancer Potencies. Appendix B. Chemical-specific summaries of the information used to derive unit risk and cancer potency values. Updated 2011.

Cancer:	Currently listed

Cancer - Listing Mechanism

State's Qualified Experts

Listed as causing :	Listed as causing: Cancer
Date of Listing:	07/01/1987

No Significant Risk Level (NSRL)

0.06 µg/day

Cancer