A university of Notre Dame researcher has published their findings after testing a wide assortment of reusable feminine hygiene products for PFAS, the results of which suggest that PFAS may have been intentionally used during manufacturing. While most samples tested, around 71%, contained concentrations of PFAS low enough to be considered "non-intentionally fluorinated", 33% of period underwear and 25% of reusable pads had rates the team deemed "intentional fluorination."
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