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Dibenz[a,h]anthracene Quickview (CASRN 53-70-3)

Health assessment information on a chemical substance is included in IRIS only after a comprehensive review of toxicity data by U.S. EPA health scientists from several Program Offices, Regional Offices, and the Office of Research and Development.

Disclaimer: This QuickView represents a snapshot of key information. We suggest that you read the IRIS Summary to put this information into complete context.

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Status of Data for Dibenz[a,h]anthracene

File First On-Line: 12/01/1990; Last Significant Revision: 03/01/1994

Category (section)
Status
Last Revised
Oral RfD Assessment No data
Inhalation RfC Assessment No data
Carcinogenicity Assessment On-line 03/01/1994
Synonyms
  • RCRA Waste Number u063
  • 53-70-3
  • Dibenz(a,h)anthracene
  • DBA
  • Dibenz(a,h)anthracene
  • Dibenzo(a,h)anthracene
  • NSC 22433
  • 1,2,5,6-Dibenzanthraceen [Dutch]
  • 1,2:5,6-Dibenzanthracene
  • 1,2:5,6-Dibenz(a)anthracene
  • 1,2:5,6-Dibenzanthracene
  • more...
Dibenz[a,h]anthracene Source Documents
Chronic Health Hazard Assessments for Noncarcinogenic Effects

Reference Dose for Chronic Oral Exposure (RfD)

Not Assessed under the IRIS Program.

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Reference Concentration for Chronic Inhalation Exposure (RfC)

Not Assessed under the IRIS Program.

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Carcinogenicity Assessment for Lifetime Exposure
  • Weight-of-Evidence Characterization
    • B2 (Probable human carcinogen - based on sufficient evidence of carcinogenicity in animals)
  • Weight-of-Evidence Narrative:
    • Based on no human data and sufficient data from animal bioassays. Dibenz[a,h]anthracene produced carcinomas in mice following oral or dermal exposure and injection site tumors in several species following subcutaneous or intramuscular administration. Dibenz[a,h]anthracene has induced DNA damage and gene mutations in bacteria as well as gene mutations and transformation in several types of mammalian cell cultures.
    • This may be a synopsis of the full weight-of-evidence narrative. See IRIS Summary.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure

  • Not Assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure

  • Not Assessed under the IRIS Program.

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