Integrated Risk Information System

Assessments in Development
- IRIS Assessment of Formaldehyde - Inhalation (External Review Draft)
- IRIS Assessment of Perfluorohexanoic Acid (PFHxA) and Related Salts (External Review Draft)
See the Full List of Assessments in Development
IRIS External Peer Review Activities

EPA announces upcoming activities for the following assessments:
- Perfluorohexanoic Acid (PFHxA) - Register Now
- Mixtures Modeling Methods: Applications for Assessing PCBs
See the Full List of IRIS Events
IRIS Program Outlook Update
- Feb 2022: IRIS Program Outlook Updated
IRIS Handbook - Nov 2021 (NAS Review)

EPA announced the availability of the National Academy of Sciences (NAS) review of the IRIS Handbook (Nov 2020)
- Learn more about this update on the IRIS Handbook (Public Comment Draft, Nov 2020)

Basic Information