The EPA has announced plans to greatly reduce industrial emissions of ethylene oxide (EtO), the carcinogenic gas used to sterilize billions of medical devices annually.

The agency proposed cutting EtO emissions from industrial facilities by 93% as part of amendments to the Miscellaneous Organic Chemical Manufacturing National Emission Standards for Hazardous Air Pollutants (NESHAP) to reduce hazardous air pollutants. The agency also said it is working on updating how it characterizes air concentrations of EtO.

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