Researchers from universities in the United States, Sweden and Switzerland warn in a feature article titled “A Never-Ending Story of Per- and Polyfluoroalkyl Substances (PFASs)?,” that substitute chemicals used to replace PFOS and PFOA in manufacturing operations could also be harmful. The paper was published today in Environmental Science and Technology, a peer-reviewed journal published by the American Chemical Society.
In the paper, leading chemical toxicity researchers recommend governments take steps to limit non-essential uses of PFASs as a class, as scientists further evaluate the possible health impacts of these chemicals.