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This is about right. Teflon (PTFE) itself is mostly harmless to humans because you aren't likely to consume large enough amounts or small enough particles of Teflon for it to enter your bloodstream.
Other PFAS like PFOA, PFOS, PFHXS, and PFNA, which are the kind you would find used to coat the inside of a popcorn bag to keep the butter off the bag, are commonly found in human blood and have been linked to negative health outcomes in humans.
It's on all your outer wear and when it rains it goes straight into your local water system where you end up drinking it.
Also in fire suppressors.
Dark Waters - Democracy Now
https://m.youtube.com/watch?v=fZDmovshipc
https://newsinteractives.cbc.ca/features/2025/pfas-canada-map/
https://www.ewg.org/interactive-maps/pfas_contamination/