The U.S. Environmental Protection Agency (EPA) announced on April 1, 2021, that it is extending the public comment period for a manufacturer-requested risk evaluation of octahydro-tetramethyl-naphthalenyl-ethanone (OTNE), a category of chemical substances consisting of four inseparable individual isomers. As reported in our February 18, 2021, blog item, EPA notes that two chemicals in the OTNE category are considered persistent, bioaccumulative, and toxic (PBT)...
