Integrated Risk Information System (IRIS)

IRIS (Integrated Risk Information System) is a compilation of electronic reports on specific substances found in the environment and their potential to cause human health effects. IRIS was initially developed for EPA staff in response to a growing demand for consistent information on substances for use in risk assessments, decision-making and regulatory activities. The information in IRIS is intended for those without extensive training in toxicology, but with some knowledge of health sciences.

Getting Started with IRIS

An overview of the web site What is IRIS? How does EPA decide which substances to add or update? More frequent questions >>

Using the IRIS Database

IRIS Process (2008 Update) Advanced Search in IRIS Compare IRIS Values Download IRIS

Upcoming Reviews and Documents

The following documents are under External Peer Review at this time: More Recent Additions >> Substance Milestone Estimated Start Date Cerium Oxide and Cerium Compounds External Peer Review 5/06/2008 Ethylene Glycol mono-Butyl Ether (EGBE) External Peer Review 4/25/2008 Propionaldehyde External Peer Review 3/5/2008