EPA DELAY IN PERC RISK STUDY MAY UNDERMINE DRY CLEANING FACILITY RULE

EPA science chief George Gray's delay of a final risk review of the dry-cleaner solvent perchloroethylene (PERC), following recommendations from industry, could undermine an EPA air office effort to issue an air toxic rule for dry cleaning facilities which emit the solvent, agency sources say. Gray is delaying the review to implement for the first time his plans for broader consideration of scientific uncertainty in EPA risk assessments in the agency's Integrated Risk Information System (IRIS) database. But the delay...