EPA proposal could clamp down on cancer-causing compound

By Sean Reilly | 01/07/2025 04:22 PM EST

During the first Trump administration, political appointees clashed repeatedly with the agency’s watchdog over ethylene oxide risks.

Protesters in front of the Oak Brook, Ill., headquarters of Sterigenics in September 2018.

People protest in front of the Oak Brook, Illinois, headquarters of Sterigenics in September 2018. Sterigenics used ethylene oxide gas in nearby Willowbrook to sterilize items as part of its business. EPA is set to release a proposal on emissions of ethylene oxide, which the agency classifies as a carcinogen. Mark Black/TNS/Newscom

The White House regulations office has completed an unusually speedy review of a draft EPA update to air toxics standards for some chemical makers that could test the incoming Trump administration’s willingness to confront the risks posed by a dangerous carcinogen.

The White House Office of Information and Regulatory Affairs sent the proposed rule back to EPA on Monday, barely a month after receiving it, according to a government tracking website.

The proposed update covers standards for what are technically known as chemical manufacturing area sources, an umbrella grouping that includes some pesticide-makers, plastics manufacturers and pharmaceutical companies.

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It follows a statutorily required review geared to exploring whether technological advances provide a path to tighten standards on their emissions of ethylene oxide, which EPA classifies as a carcinogen, or dozens of other hazardous air pollutants. The last such assessment ended in 2012.

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