Public CommentProposedPublic CommentGuidance Update
OEHHA releases draft IUR for acrolein for public review
California Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1986)Office of Environmental Health Hazard Assessment (OEHHA)California
Announced
Jun 10, 2026
Description
OEHHA released a draft document for public review that summarizes the carcinogenicity data and derives a cancer inhalation unit risk factor (IUR) for acrolein under Proposition 65. The IUR is a quantitative value used to calculate cancer risk from inhalation exposure, which helps businesses determine whether Proposition 65 warnings are required for products or activities involving acrolein exposures.
Key Findings
OEHHA releases draft IUR for acrolein for public review
June 10, 2026 | Proposition 65 ### Inhalation Unit Risk Factor (IUR) for Acrolein OEHHA is releasing a draft document for public review that summarizes the carcinogenicity data and derives a cancer inhalation unit risk factor (IUR) for acrolein. May 29, 2026 | Air ### Inhalation Unit Risk Factor (IUR) for Ethylene Oxide OEHHA is releasing a draft document for public review that summarizes the carcinogenicity data and