Perfluoroalkyl and polyfluoroalkyl substances (PFAS)
Preservative
PFAS are a group of chemicals that help make things non-stick, like Teflon pans and waterproof clothing. However, they can also be found in drinking water and have been linked to health problems.
Source: EWG Skin Deep
PFAS have been linked to cancer, thyroid disease, and reproductive issues, and the EPA has set a non-enforceable health advisory level for two types of PFAS in drinking water.
r/science
Scientists solved longstanding mystery of origin of PFAS “forever chemicals” contaminating water in North Carolina to a local textile manufacturing plant. Precursors were being released into sewer system at concentrations approximately 3 million times greater than EPA’s drinking water limit.
Exposure to per- and polyfluoroalkyl substances and inflammatory bowel disease: review and meta-analysis.
Phillipson CN, Bartell SM
2026
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Last updated: May 16, 2026