> to PFAS This should be PFBS, according to Wikipedia. PFAS is the whole family of chemicals, PFBS is a particular member with a much shorter half-life than P

> to PFAS This should be PFBS, according to Wikipedia. PFAS is the whole family of chemicals, PFBS is a particular member with a much shorter half-life than PFOS. “PFAS” getting a non-abbreviation moniker would sure help to disambiguate things. Also from WP, Scotchgard now uses “a proprietary fluorinated urethane,” which means we know next to nothing about it. https://en.m.wikipedia.org/wiki/Scotchgard https://en.m.wikipedia.org/wiki/Scotchgard