05/27/2026
The President of TERA helped create EPA’s IRIS program in 1985. It’s difficult to watch the agency step away from it, but necessary conversations are long overdue.
A recent EPA memorandum highlights concerns that some IRIS assessments have drifted too far from practical toxicology and collaborative scientific review. Science works best when experts openly challenge and strengthen each other’s conclusions.
Maybe this is an opportunity to rebuild risk assessment the way it was originally intended: transparent, collaborative, and grounded in sound science.
An April 27th memorandum by Deputy Administrator David Fotouhi of the United States Environmental Protection Agency (US EPA) focused on the future development and use of risk assessment at the EPA, ma