New TSCA Workplace Exposure Limits May Hint At Reworked TCE Approach

EPA has quietly released workplace exposure limits for five chemicals with TSCA rules in development, appearing to lay groundwork not just for those proposals but also a potential reversal on trichloroethylene (TCE), where the agency has prepared two limits -- one based on the Trump-era risk determination and a stricter second option using research the prior administration rejected. Late last month, EPA quietly posted to chemical-specific regulatory dockets internal memos outlining its development of Existing Chemical Exposure Limits (ECELs) for...