The Environmental Protection Agency is imposing new restrictions on the emissions of ethylene oxide, a colorless gas that is widely used to sterilize medical devices and is also a carcinogen.

Plants emitting ethylene oxide came under greater scrutiny after the EPA published a study in 2016 finding the chemical to be 30 times more toxic to adults and 60 times more toxic to children than ...

Emissions of a colorless, carcinogenic gas produced by facilities that sterilize medical equipment disproportionately affect low-income and minority neighborhoods but pose a risk to more than 14 ...