Per- and Polyfluoroalkyl Substances (PFAS)

  • PFAS Explained

    scientist examines sample

    Learn about EPA's current understanding of PFAS and discover steps you can take to reduce PFAS risk.

  • PFAS Resources, Data and Tools

    Spreadsheet and data

    Find state contacts and discover research, data, and tools related to EPA's understanding of PFAS.

  • Actions to Address PFAS

    A male scientist preparing an assay for testing

    Learn what EPA is doing to address PFAS.

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Last updated on March 18, 2025