Public CommentProposedPublic CommentGuidance Update
California Releases Draft Cancer Risk Assessments for Acrolein and Ethylene Oxide
Air Toxics Risk Assessment ProgramCalifornia Air Resources Board, Office of Environmental Health Hazard AssessmentCalifornia
Announced
Jun 2, 2026
Description
OEHHA released draft cancer risk assessments showing acrolein and ethylene oxide can potentially pose unacceptable cancer risks exceeding 800 in 1 million, more than 10 times higher than benzene. Governor Newsom proposed $2.5 million for expanded air monitoring and research. Public workshops scheduled for June 2, 2026 (Sacramento) and June 4, 2026 (Los Angeles) with a 45-day public comment period.
Sources
Key Findings
California Releases Draft Cancer Risk Assessments for Acrolein and Ethylene Oxide
 # California Air Resources Board ## Main navigation ## California releases draft cancer risk assessments for two air toxics *For immediate release* ## Contacts ## Categories **What you need to know:**The latest science from the Office of Environmental Health Hazard Assessment (OEHHA) shows two toxics, acrolein and ethylene oxide, can potentially pose