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Re:Study finds alarming levels of ‘forever chemicals’ in US ... by mensetmanusman on Thursday May 13, 2021 @08:09AM (#27141189)
PFAS is as broad of a term as ‘nuclear’ in a sense. There are a range of different half-lives from hours to 10 years [1] (The term ‘forever chemical’ points to the 10 years-type that bioaccumulate).

The ons that have been identified with these long half-life properties have not been manufactured for many years (but they are still around due to their long half-lives).

[1]https://www.atsdr.cdc.gov/toxprofiles/tp200-c1.pdf

Re:Study finds alarming levels of ‘forever chemicals’ in US ... by giantg2 on Thursday May 13, 2021 @09:33AM (#27141871)
Hours aren't too bad. Although we would still need to understand if they cause any issues in the body.

Anything with a half life of a year or more is concerning due to the near continual exposure. You'll accumulate it faster than you'll get rid of it.

Re:Study finds alarming levels of ‘forever chemicals’ in US ... by filoeleven on Thursday May 13, 2021 @08:08PM (#27149097)
Endocrine disrupters (which these are) are bad at any level.

Don’t use alcohol-based disinfectants after handling heat-printed receipts, it makes the BPA absorption rate through your skin go way up.

Re:Study finds alarming levels of ‘forever chemicals’ in US ... by giantg2 on Thursday May 13, 2021 @08:41PM (#27149298)
Soy is an endocrine disruptor and it's ok to eat in moderation. The same is true of fish with it's dioxin and mercury.

They aren't required to be eliminated, but minimized. I would be much more concerned with the duration of exposure (halflife) when working to reduce exposure given that it's impossible to completely eliminate.