Consolidated Table of OEHHA / ARB Approved Risk Assessment Health Values
This page last reviewed March 30, 2016The Consolidated Table of OEHHA / ARB Approved Risk Assessment Health Values is a quick look-up table of all cancer potency values and noncancer acute, 8-hour, and chronic Reference Exposure Levels (RELs) that are available for use in the AB 2588 Air Toxics "Hot Spots" Program. The most current health values should be used for the development of a facility health risk assessment. For more information on the OEHHA Guidelines, see the OEHHA website. Users of this table are advised to monitor the OEHHA website for any updates to the health values. If you have any questions, please call the Emission Assessment Branch of the Stationary Source Division at (916) 322-1617 or send email in care of YanPing Zuo.
All tables are in Adobe Acrobat format:
March 28, 2016, OEHHA adopted new and revised RELs for toluene
diisocyanate (TDI) and methylene diphenyl diisocyanate (MDI). The
REL values and summaries can be found at: http://www.oehha.ca.gov/air/chronic_rels/032816TDI_MDI_RELs.html.
- Consolidated Table of OEHHA/ARB
Approved Risk Assessment Health Values: Lists
all of the Health Values
that have been approved for use in facility health
risk assessments. (contable.pdf,
PDF 163 KB, March 30, 2016.
When printing document, use
legal-size paper.) Updated the footnotes of Molecular Weight Adjustment Factor, asbestos, and selenium and compounds.
- Target Organs Tables:
Acute, 8-Hour, and Chronic Noncancer
Reference Exposure Levels that have been
adopted by OEHHA and the chemicals target organs. (totables.pdf, PDF 183KB, March 30, 2016)
For more information see: