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Questions or Comments: tox@tceq.texas.gov

About the Chemicals Under Consideration for Toxicity Factor Development

The Toxicology Division sends list serve announcements and encourages interested parties to submit relevant technical data.


New Information The Carbon Tetrachloride DSD is now final

Chemicals are selected for one or more of the following reasons:

  • they have been detected in air monitoring
  • permits are frequently issued for them
  • the public has expressed concerns about them


The Toxicology Division is not requesting toxicity information at this time. Members on the Toxicology Announcement List will be informed when there is a request for information.

Sign Up to Receive ESL List, AMCV List, and Other Related Toxicology Announcements

Instructions on how to join the Toxicology Announcement List.