Integrated Risk Information System

IRIS External Peer Review Reports

Final Assessments:

• IRIS Assessment of Perfluorohexanoic Acid (PFHxA) and Related Salts   
• IRIS Toxicological Review Perfluorobutanoic Acid (PFBA)   

IRIS Assessment Peer Review Reports:

• IRIS Toxicological Review of Perfluorobutanoic Acid (PFBA) and Related Salts

See the Full List of updates and recent additions

IRIS Assessments

Assessments in Development:

• PFDA (External Review Draft)  
• Naphthalene (Protocol)  
• Ethylbenzene (Protocol)

See the Full List of Assessments in Development

IRIS Handbook - Dec 2022

EPA announced the availability of the ORD Staff Handbook for Developing IRIS Assessments,

• Learn more about the IRIS Handbook (Dec 2022)

IRIS Program Outlook Update

• Feb 2023: IRIS Program Outlook Updated