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tox@tceq.texas.gov
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List of Chemicals Under Consideration for Toxicity Factor Development

List of chemicals under consideration for toxicity factor development published by the TCEQ Toxicology Division.

New InformationThe Toxicology Division is requesting toxicity data

Hot TopicThe public comment period has begun for the Hexane, All Isomers proposed DSD

 

The Toxicology Division encourages interested parties, industry trade associations, individual companies, environmental groups, academia, etc. to submit relevant technical data for the following chemicals and any additional isocyanate isomer for which you have toxicity information:

Chemical Name CAS Number 
1,5-Napthalene diisocyanate 3173-72-6
4,4'-Diphenylmethane diisocyanate 101-68-8
Hexamethylene diisocyanate 822-06-0
Isophorone diisocyanate 4098-71-9
Methyl isocyanate 624-83-9
Toluene diisocyanate 26471-62-5
Toluene-2,4-diisocyanate 584-84-9
Toluene-2,6-diisocyanate 91-08-7

Procedure for Data Submission

e-mail: tox@tceq.texas.gov or by mail (must be received at the TCEQ no later than 5/12/17) to:

Regular mail:

Toxicology Division, MC 168

Texas Commission on Environmental Quality

P.O. Box 13087

Austin, TX 78711-3087

Mail delivery services:

Toxicology Division, MC 168

Texas Commission on Environmental Quality

12100 Park 35 Circle, Bldg. F

Austin, TX 78753

Contact the TCEQ About DSDs and Fact Sheets


Call:
877-992-8370 (toll free) or 512-239-1795

E-mail: tox@tceq.texas.gov

Write: Texas Commission on Environmental Quality

Toxicology Division, MC 168

P.O. Box 13087

Austin, TX 78711-3087

 

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