The EPA has identified 23 U.S. facilities that are emitting toxic air pollution that puts people at risk

Midwest Sterilization Corporation in Laredo, Texas, operates 24/7 and emits more ethylene oxide than any other sterilizer plant in the country, according to ProPublica’s analysis, which relies on self-reported emissions data from companies. That makes it the most toxic facility of its kind in the country and the 11th most toxic overall. (Credit: Kathleen Flynn, special to Texas Tribune/ProPublica)

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