Download Effects Screening Levels (ESL) Lists Used in the Review of Air Permitting Data

Final Development Support Documents (DSDs) Now Available!!

Download the Latest ESL List   (updated 7/29/11)

• Download Previous ESL Lists
• What to Do if a Chemical Is Not on the List
• Questions Regarding the ESL List

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

What to Do if a Chemical Is Not on the List

If you cannot find a listing for a particular constituent, this does not mean a health effects review is not required.  A default short-term ESL of 2 µg/m3 can be used, or you may contact the Toxicology Division to determine if a screening level has been established for a constituent that is not in this list.  If no screening level exists for the constituent, then all customers must complete the TCEQ Effects Screening Level Derivation Request Form and submit it to the Toxicology Division staff.

In the interest of time and resources, the Toxicology Division requests that you please conduct a thorough search of the Current ESL List with CAS numbers and synonyms of the constituent of interest prior to contacting the Toxicology Division. If a request has been received with constituents that are listed on the Current ESL List it will be returned.

Questions Regarding the ESL List

Download the Latest ESL List

In Excel format (Help with Downloading Files)

Download Previous ESL Lists

In Excel format (Help with Downloading Files)

Receive ESL List, AMCV List, and Other Related Toxicology Announcements

To join the Toxicology Announcement List, please e-mail:

join-tox@listserv.tceq.state.tx.us.

Do not put any information in either the subject or message body.

You will automatically receive an acknowledgment by e-mail informing you that your request has been received; however, you must confirm you want to be placed on the list. To make the confirmation, reply to the message.

Once the list administrator has admitted your email address to the list, you will receive a “welcome” document.