IRIS

Pentabromodiphenyl ether

CASRN 32534-81-9

Noncancer Assessment

Reference Dose for Oral Exposure (RfD) (PDF) (9 pp, 96 K) last updated: 03/31/1987

System RfD (mg/kg-day) Basis PoD Composite UF Confidence
Hepatic 2 x 10-3 Induction of hepatic enzymes NOAEL : 1.77
mg/kg-day
1000 Low

 


Reference Concentration for Inhalation Exposure (RfC) (PDF) (9 pp, 96 K)
Not assessed under the IRIS Program.

 

Cancer Assessment

Weight of Evidence for Cancer (PDF) (9 pp, 96 K) last updated: 08/01/1990

WOE Characterization Framework for WOE Characterization
D (Not classifiable as to human carcinogenicity) Guidelines for Carcinogen Risk Assessment (US EPA, 1986)
Basis:
  • No human data and animal data available.
  • This may be a synopsis of the full weight-of-evidence narrative.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (9 pp, 96 K)

Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (9 pp, 96 K)

Not assessed under the IRIS Program.

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