Integrated Risk Information System

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)

IRIS Program Outlook Update

• Oct 2021: IRIS Program Outlook Updated

Assessments in Development

• IRIS Assessment Plan for Naphthalene
• IRIS Assessment for Perfluorobutanoic Acid (PFBA) (Public Comment and External Review Draft) 
• IRIS Assessment Plan for Vanadium and Compounds (Inhalation Exposure)

See the Full List of Assessments in Development

IRIS Final Assessments Released

EPA announces the release of the following final assessments:

• IRIS Assessment of Ethyl Tertiary Butyl Ether (ETBE)
• IRIS Assessment of tert-Butyl Alcohol (tert-butanol)