EPA issues draft toxicity assessments for GenX, PFBS

摘要

EPA has announced that it was seeking public input on draft toxicity assessments for GenX chemicals and perfluorobutane sulfonic acid (PFBS), which were introduced as replacements after the voluntary phaseouts of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS). “Overall, the available oral toxicity studies show that the liver is sensitive to GenX chemicals, and the kidney and thyroid are sensitive to PFBS,” EPA says.