And various advocates and experts also voiced concerns over components of EPA’s move. Erik Olson, who directs health and food work for NRDC, questioned the advisory for PFBS, which is significantly higher than the other four chemicals and seemingly out of step with some of the available science reflecting its health risks. He also questioned the ongoing lack of a class-based approach to the compounds.
“It’s time to regulate all PFAS with enforceable standards as a single class of chemicals,” said Olson, who wants to see a 1-ppt limit on all PFAS in drinking water. “Any other approach will leave every one of us at risk from these forever toxics for decades to come.”
Organizations like the U.S. Public Interest Research Group and Public Employees for Environmental Responsibility echoed those calls, with the Environmental Working Group also argued that EPA should move swiftly in setting enforceable standards for compounds beyond PFOA and PFOS.