EPA’s EtO Risk Approach In MON Proposal Sparks Competing Criticisms

January 16, 2020
Industry and environmental groups clashed at a Jan. 16 public hearing over EPA’s use of its conservative cancer risk value for ethylene oxide (EtO) and related modifications in its proposal to update its air toxics rule on miscellaneous organic chemical manufacturing (MON) facilities. Chemical industry representatives reiterated their longstanding arguments that EPA’s use of its 2016 Integrated Risk Information System (IRIS) assessment of EtO overstates the ubiquitous chemical’s cancer risk, by inappropriately using epidemiology studies of workers and choosing an...


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