EPA Plans Standardized ‘Scenarios’ To Guide Worker Exposure Assessments

EPA will use an industry “workshop” next month to unveil standard “occupational exposure scenarios” (OES) developed by staff to assess potential worker exposures as part of its TSCA risk evaluations of existing chemicals -- a move that could help address industry complaints that those reviews greatly overstate occupational risks. Greg Macek, a chemical engineer with EPA’s Toxic Substances Control Act (TSCA) office, said that at a May “workshop, we’ll have the conditions of use [COUs], the occupational exposure scenario that...