> they're not very reactive, and this lack of reactivity could mean they're not actually that harmful. Per- and polyfluoroalkyl substances (PFAS) are so stable

> they're not very reactive, and this lack of reactivity could mean they're not actually that harmful. Per- and polyfluoroalkyl substances (PFAS) are so stable they are called "forever chemicals", but according the NRDC, "PFAS are also toxic at extremely low levels (i.e. parts per quadrillion), posing significant risks to our health": https://www.nrdc.org/stories/forever-chemicals-called-pfas-show-your-food-clothes-and-home https://www.nrdc.org/stories/forever-chemicals-called-pfas-s...