TCEQ Seeks NAS Review Of EtO Assessment, In Challenge To IRIS Values

At the request of Texas’ regulators, the National Academy of Sciences, Engineering and Medicine (NASEM) is launching a panel to review the state’s risk assessment of ethylene oxide (EtO), a review that could challenge EPA’s conservative assessment, which serves as the basis for several major air rules, including the controversial plan to regulate sterilizer emissions. NASEM Oct. 10 announced that it is seeking to solicit nominations for experts to review the Texas Commission on Environmental Quality (TCEQ) 2020 EtO Carcinogenic...