TCEQ has finalised its DSD on diethanolamine and triethanolamine. The DSDs are used by TCEQ to inform the derivation of inhalation Effect Screening Levels (ESLs), chemical concentrations in the air that are considered safe for the general population (including vulnerable sub-populations) and that also protect against “welfare effects” (e.g. on plants). For both compounds, acute (1-hour) and chronic (70-year) health and welfare-based screening levels of 51 and 7.5 µg/m3, respectively, were established, the critical effects in rats being inflammation of the larynx (acute) and increased relative liver weight in females (chronic).

Texas Commission on Environmental Quality (2018). Development support documents. Diethanolamine and triethanolamine. Final, 28 June 2018. https://www.tceq.texas.gov/assets/public/implementation/tox/dsd/final/dea%20tea.pdf

 

The above items were taken from the October 2018 issue of Toxicology and Regulatory News which is sent automatically to members of bibra.

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