California: Very low long-term limit value (CREL) proposed for caprolactam

Calfornia EPA / OEHHA suggested a very low long-term inhalation CREL limit value for caprolactam, see:
This can affect an important part of textile floorings industry. For discussion see:

There will a hearing, see the below announcement, copied in from a mailing in late December:
The Office of Environmental Health Hazard Assessment (OEHHA) is presenting draft documents for discussion by the Scientific Review Panel on Toxic Air Contaminants at its meeting at 9:00 a.m. on January 21, 2011 at the University of California, Berkeley (Room 150, University Hall, 2199 Addison Street, Berkeley, California 94720: see for details and agenda – not yet posted in week 52).
The document presented here on Toxicity Equivalence Factors for dioxin-like compounds is a proposed revision to the previous version that appears as Appendix C of the Technical Support Document for Cancer Potency Factors.  The proposed acute, 8 hour, and chronic RELs for Caprolactam, which are 770 µg/m3 (170 ppb), 10 µg/m3 (2 ppb), and 4 µg/m3 (0.8 ppb), respectively, were developed using the latest version of the non-cancer REL guidelines, including application of the revised methodology to protect infants, children and other sensitive subpopulations.  When finalized and adopted, these RELs will be added to the compound-specific toxicity reviews and summary tables which appear as appendices to the Technical Support Document for the Derivation of Noncancer Reference Exposure Levels.
Please direct any inquiries concerning technical matters to Dr. Andrew G. Salmon at (510) 622-3191 or

Just for comparison with similar European limit values – German AgBB adopted an LCI value of 240 µg/m³ as being protective, after long scientific discussion, and French AFSSET selected an LCI value of 100 µg/m³ – both much higher than the proposed Califoria CREL value.


About Eurofins Product Testing A/S - VOC testing

Eurofins Product Testing A/S is the market leader world-wide for VOC emissions chamber testing, operating several hundreds of test chambers of different sizes, experienced with VOC emission chamber testing since 1989. In cooperation with Eurofins VOC testing labs in China and in Japan. Many News appear continuously that can be important for industry, authorities and associations. This Blog shows News on VOC emissions testing for regulations in Germany, France and Belgium as well as for LEED, BREEAM, Indoor air Comfort, EMICODE, Blue Angel, CDPH Section 1350 and more.
This entry was posted in Uncategorized. Bookmark the permalink.

One Response to California: Very low long-term limit value (CREL) proposed for caprolactam

  1. Pingback: Revised draft California CREL for Caprolactam | VOC emissions testing

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s