PFOS in Drinking Water
PFAS (Forever Chemical)EPA Limit (MCL)
4 ng/L
EPA Goal (MCLG)
0 ng/L
Health Guideline
0.3 ng/L
Source: EWG
Status
Regulated
Health Effects
PFOS (perfluorooctane sulfonic acid) is linked to cancer, thyroid disease, immune system damage, high cholesterol, and reproductive problems. It accumulates in the blood and takes years to leave the body.
How PFOS Gets Into Water
Historically used in Scotchgard fabric protector, firefighting foam (AFFF), and industrial processes. Major sources of contamination include military bases, airports, and industrial facilities.
How to Remove PFOS
Reverse osmosis removes up to 99% of PFOS. Granular activated carbon filters and ion exchange systems are also highly effective.
Recommended: Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
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