EPA Eyes TSCA ‘Co-Exposure’ Method To Bolster Chemical Assessments

A top scientist at EPA’s toxics office told the agency’s Science Advisory Board (SAB) this week that a nascent screening tool for chemical “co-exposures” could boost efforts to ensure that TSCA risk evaluations meet the law’s requirement for those reviews to protect vulnerable populations -- though he emphasized that the tool needs substantial refinement to be fit for regulatory use. Jason Todd, senior science lead within EPA’s Office of Chemical Safety and Pollution Prevention (OCSPP), highlighted the draft Toxic Substances...