EPA Adds Senior TSCA Science Advisor, Targeting Existing Chemicals

EPA in July quietly added a second staff-level senior science advisor to the Office of Pollution Prevention and Toxics (OPPT) that implements TSCA with a portfolio focused on risk evaluations of existing chemicals, after she was “instrumental” in the toxics program’s decision to begin work on a rule for one such substance, the tire component 6PPD. Kathie Dionisio, who previously served as principal associate director for the EPA Chemical Safety for Sustainability (CSS) program within the Office of Research and...