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Per- and Polyfluoroalkyl Substances (PFASs) in Your Environment

Includes Information on Perfluorooctanoic Acid (PFOA), Perfluorooctyl Sulfonate (PFOS), and All Other PFASs, and on PFCs

Learn about PFASs

Learn about PFOA, PFOS and other PFCs

What EPA is Doing

How EPA and states are reducing exposures

Contact Us to ask a question, provide feedback, or report a problem.