+Pfos (Perfluorooctanesulfonic acid) is a persistent synthetic chemical, widely recognized as a type of [PFAS](/wiki/PFAS). Its exceptional resistance to [Degradation](/wiki/Degradation) allows it to accumulate in nature, raising global concern for ecological and human well-being.
+## See also
+- [PFAS](/wiki/PFAS)
+- [Pollution](/wiki/Pollution)
+- [Toxicity](/wiki/Toxicity)
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