EPA Weighs Novel Risk Methods For TSCA Chemical Reviews

Staff at EPA’s TSCA office are fielding proposals from both within and outside the agency that could change how they assess risks from toxic substances, including changes both to the universe of chemical exposures those assessments consider, and how they calculate non-cancer health risk. Last week, Toxic Substances Control Act (TSCA) officials sought input from the EPA Science Advisory Board (SAB) on a preliminary screening approach that the agency could use to add chemical “co-exposures” to its risk evaluations --...