Benz[a]anthracene

CASRN 56-55-3

  • IRIS Summary (PDF) (12 pp, 114 K)
  • Status: Benz[a]anthracene is not being reassessed by IRIS at this time.

Health Hazard Assessments for Effects Other than Cancer


Reference Dose for Oral Exposure (RfD) (PDF) (12 pp, 114 K)
Not assessed under the IRIS Program.

Reference Concentration for Inhalation Exposure (RfC) (PDF) (12 pp, 114 K) last updated: 09/01/1994
Not assessed under the IRIS Program.

Cancer Assessment


Weight of Evidence for Cancer (PDF) (12 pp, 114 K) last updated: 03/01/1994

WOE Characterization Framework for WOE Characterization
B2 (Probable human carcinogen - based on sufficient evidence of carcinogenicity in animals) Guidelines for Carcinogen Risk Assessment (US EPA, 1986)
Basis:
  • Based on no human data and sufficient data from animal bioassays. Benz[a]anthracene produced tumors in mice exposed by gavage; intraperitoneal, subcutaneous or intramuscular injection; and topical application. Benz[a]anthracene produced mutations in bacteria and in mammalian cells, and transformed mammalian cells in culture.
  • This may be a synopsis of the full weight-of-evidence narrative.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (12 pp, 114 K)

Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (12 pp, 114 K)

Not assessed under the IRIS Program.

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