EPA Reconsiders 2020 National Emission Standards for Hazardous Air Pollutants in Organic Chemical Manufacturing

Summary

The U.S. Environmental Protection Agency (EPA) is reconsidering two issues related to the 2020 National Emission Standards for Hazardous Air Pollutants (NESHAP) for the Miscellaneous Organic Chemical Manufacturing sector, specifically the use of the EPA's IRIS value for ethylene oxide in assessing cancer risk and the rejection of the Texas Commission on Environmental Quality's (TCEQ) risk value for ethylene oxide as an alternative risk value.