Benzene Quickview (CASRN 71-43-2)
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. For definitions of terms in the IRIS Web site, refer to the IRIS Glossary. Status of Data for BenzeneFile First On-Line: 03/01/1988; Last Significant Revision: 04/17/2003
Synonyms
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Benzene Source Documents
Revision History
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Chronic Health Hazard Assessments for Noncarcinogenic EffectsReference Dose for Chronic Oral Exposure (RfD)
* The Point of Departure listed serves as a basis from which the Oral RfD was derived. See Discussion of Conversion Factors and Assumptions for more details.
Reference Concentration for Chronic Inhalation Exposure (RfC)
* The Point of Departure listed serves as a basis from which the Inhalation RfC was derived. See Discussion of Conversion Factors and Assumptions for more details.
Carcinogenicity Assessment for Lifetime Exposure
Quantitative Estimate of Carcinogenic Risk from Oral Exposure
1 This is one endpoint in a range of oral slope factors. See Additional Comments (Carcinogenicity, Oral Exposure).
2 This is one endpoint in a range of drinking water unit risks. See Additional Comments (Carcinogenicity, Oral Exposure).
1 This is one endpoint in a range of oral slope factors/drinking water unit risks. See Additional Comments (Carcinogenicity, Oral Exposure).
Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure
3 This is one endpoint in a range of inhalation unit risks. Additional Comments (Carcinogenicity, Inhalation Exposure). Inhalation Concentrations at Specified Risk Levels
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