Benzotrichloride

CASRN 98-07-7

  • IRIS Summary (PDF) (14 pp, 119 K)
  • Status: Benzotrichloride is not being reassessed by IRIS at this time.

Health Hazard Assessments for Effects Other than Cancer


Reference Dose for Oral Exposure (RfD) (PDF) (14 pp, 119 K)
Not assessed under the IRIS Program.

Reference Concentration for Inhalation Exposure (RfC) (PDF) (14 pp, 119 K)
Not assessed under the IRIS Program.

Cancer Assessment


Weight of Evidence for Cancer (PDF) (14 pp, 119 K) last updated: 12/01/1990

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 inadequate human data and sufficient evidence of carcinogenicity in animals; namely, significantly increased incidences of benign and malignant tumors at multiple sites in one strain of female mice treated orally, dermally, and by inhalation. There is also evidence of mutagenicity in a variety of test systems.
  • This may be a synopsis of the full weight-of-evidence narrative.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (14 pp, 119 K)

Oral Slope Factor: 1.3 x10 1 per mg/kg-day
Drinking Water Unit Risk: 3.6 x10 -4 per µg/L
Extrapolation Method: Linearized multistage procedure, extra risk
Tumor site(s): Respiratory
Tumor type(s): Lung, adenocarcinoma (Fukuda et al., 1978)


Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (14 pp, 119 K)

Not Assessed under the IRIS Program.

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