IRIS

Methoxychlor

CASRN 72-43-5

Noncancer Assessment

Reference Dose for Oral Exposure (RfD) (PDF) (26 pp, 168 K) last updated: 09/01/1990

System RfD (mg/kg-day) Basis PoD Composite UF Confidence
Developmental 5 x 10-3 Excessive loss of litters NOEL : 5.01
mg/kg-day
1000 Low

 


Reference Concentration for Inhalation Exposure (RfC) (PDF) (26 pp, 168 K) last updated: 12/01/1993
Information reviewed but value not estimated.

 

Cancer Assessment

Weight of Evidence for Cancer (PDF) (26 pp, 168 K) last updated: 09/07/1988

WOE Characterization Framework for WOE Characterization
D (Not classifiable as to human carcinogenicity) Guidelines for Carcinogen Risk Assessment (US EPA, 1986)
Basis:
  • Human data are unavailable, and animal evidence is inconclusive.
  • This may be a synopsis of the full weight-of-evidence narrative.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (26 pp, 168 K)

Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (26 pp, 168 K)

Not assessed under the IRIS Program.

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