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Integrated Risk Information System

  • IRIS Assessments

    Final Assessments:

    • Inorganic Arsenic (Final Report)
    • Perfluorohexanesulfonic Acid (PFHxS) (Final Report)
    • Formaldehyde (Final Report)

    Assessments in Development:

    • Chloroform (Public Comment Draft)
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    See the Full List of Assessments in Development

  • IRIS External Peer Review Reports

    IRIS Assessment Peer Review Reports:


    • IRIS Toxicological Review of Perfluorohexanesulfonic Acid (PFHxS) and Related Salts (Final Peer Review Report)
    • IRIS Toxicological Review of Perfluorononanoic Acid (PFNA) and Related Salts (Final Peer Review Report)

    See the Full List of updates and recent additions

  • IRIS Program Outlook Update

    • Oct 2024: IRIS Program Outlook Updated  
  • IRIS Handbook

    Learn more about the development of the IRIS Assessments from the IRIS Handbook.

Basic Information

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IRIS Assessments

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Program Materials

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Related Resources

  • Provisional Peer-Reviewed Toxicity Value  (PPRTV) Assessments
  • Assessing and Managing Chemicals under TSCA
  • List of IRIS Chemicals in the Comptox Chemistry Dashboard

Recent Additions

  • 01/13: Inorganic Arsenic (Final Report)
  • 01/13: Perfluorohexanesulfonic Acid (PFHxS) (Final Report)
  • 12/18: Chloroform (Inhalation) External Review Draft
  • 10/29: IRIS Program Outlook (Oct 2024)
  • 09/27: Final PFNA Peer Review Report
  • More IRIS Recent Additions

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IRIS Calendar

  • Public meetings & workshops - list view
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Calendar
Contact Us about IRIS to ask a question, provide feedback, or report a problem.
Last updated on January 13, 2025
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