Frontline community groups teamed up with national environmental organizations Wednesday to sue the Trump administration for letting chemical manufacturing plants off the hook for toxic, carcinogenic air pollution.

The lawsuit targets an executive action from July that gave 50 plants a two-year exemption from a Biden-era U.S. Environmental Protection Agency rule that tightened restrictions on cancer-causing air toxics like ethylene oxide and chloroprene. After years of fierce grassroots advocacy from communities harmed by chemical plants, the EPA enacted the 2024 HON rule—Hazardous Organic NESHAP (National Emission Standards for Hazardous Air Pollutants)—and projected that it would reduce air pollution-related risks for communities living near these facilities by about 96 percent while cu

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