Chemical firms kept data on PFAS health hazards secret
By 
Rebecca Trager2023-06-02T14:13:00
Documents suggest that DuPont and 3M had evidence of PFAS toxicity but suppressed the findings
A new analysis of previously undisclosed industry documents by academic researchers in the US appears to confirm that chemical companies have known for more than 60 years about the health hazards posed by exposure to per- and polyfluoroalkyl substances (PFAS) discharged from their facilities, but actively worked to suppress knowledge.