Dibenzofuran
CASRN 132-64-9
PPRTV Toxicity Values Summary Table
Noncancer Assessment
Estimate of Chronic Reference Dose for Oral Exposure (RfD)Last Updated: 06/11/2007
See attachment to the assessment's appendix for quantitative screening values.
Estimate of Subchronic Reference Dose for Oral Exposure (RfD)Last Updated: 06/11/2007
See attachment to the assessment's appendix for quantitative screening values.
Estimate of Subchronic Reference Dose for Oral Exposure (RfD)Last Updated: 06/11/2007
| System | RfD (mg/kg-day) | Basis | PoD | UF | Confidence |
|---|---|---|---|---|---|
| Whole Body Effects | 4 x 10-3 | Reduced length and organ weight and excess abdominal fat | LOAEL : 12.3 mg/kg-day | 3000 | Low |
Species Studied: Rat
Duration: 200 days
Principal Study: Thomas et al. 1940
Duration: 200 days
Principal Study: Thomas et al. 1940
Estimate of Chronic Reference Concentration for Inhalation Exposure (RfC)Last Updated: 06/11/2007
Data inadequate for deriving a chronic RfC.
Estimate of Subchronic Reference Concentration for Inhalation Exposure (RfC)Last Updated: 06/11/2007
Data inadequate for deriving a subchronic RfC.
Data inadequate for deriving a chronic RfC.
Estimate of Subchronic Reference Concentration for Inhalation Exposure (RfC)Last Updated: 06/11/2007
Data inadequate for deriving a subchronic RfC.