Many PFAS compounds are toxic at parts per trillion levels. As a chemist I can tell you that it's a big deal, but there is also no way you can avoid exposure.
The fact that 3M is exiting their 1.3 billion fluorinated molecule business of their own accord, should give you a flavour of the shitstorm of litigation that will result when the full implications of PFAS contamination are understood more broadly.
The legal limit for PFAS in drinking water is 0.07 PPB. But that hides the fact that not all PFAS chemicals are created equal. The EPA limit for PFOS and PFOA and GENx varieties are 1000x lower. I pretty much guarantee you and your family have been massively over exposed to a large number of PFAS and PFAS intermediate degradation products well above the EPA limit.
The fact that 3M is exiting their 1.3 billion fluorinated molecule business of their own accord, should give you a flavour of the shitstorm of litigation that will result when the full implications of PFAS contamination are understood more broadly.
https://news.3m.com/2022-12-20-3M-to-Exit-PFAS-Manufacturing...