CLAIRTON, PENNSYLVANIA — President Trump granted all 11 coke plants in the United States, including the Clairton facility in Pennsylvania, a two-year exemption from pollution standards issued by the Biden administration before those standards took effect. The exemption delayed new rules designed to reduce emissions from coke oven operations.

The Clairton plant, North America's largest coke facility, sits on the west bank of the Monongahela River and covers nearly 400 acres. Its ovens heat coal to up to 2,000 degrees Fahrenheit, producing up to 4.3 million tons of coke annually. Coke is used in blast furnaces to produce iron. The production process emits benzene, which the Centers for Disease Control and Prevention identifies as a carcinogen that can lead to anemia and leukemia, as well as sulfur dioxide, which can trigger severe asthma.

Environmental Protection Agency spokesperson Brigit Hirsch said that the president granted companies extra time to comply because the technology needed to meet the new standard was not yet available. Hirsch said that requiring plants to comply before the necessary tools exist would not improve air quality and would instead shut down facilities and cost jobs without delivering benefits.

The plant has a record of regulatory violations. Five coke oven plants across the country recorded major Clean Air Act violations in every quarter for at least three consecutive years. As of the last compliance monitoring in July 2025, the Clairton plant violated the Clean Air Act in each of the previous 12 quarters. The facility has also experienced fatal explosions and excess releases of toxic chemicals. Since 2022, the Allegheny County Health Department has levied more than $56 million in fines against the plant, primarily related to a 2018 fire that led to high emissions.

Clairton Elementary School is located approximately one mile from the plant. Students there and at other elementary schools near major pollution sites in Pennsylvania have higher asthma rates than other children in the state. A study of 1,200 children attending schools near major pollution sites, including Clairton Elementary, found that those students had nearly triple the national asthma rate, with African American youth experiencing the highest rates. A follow-up study found that children with asthma living near the coke plant had an 80 percent higher chance of missing school on days with elevated sulfur dioxide pollution. Researchers have linked air pollution in Allegheny County, which includes Clairton and Pittsburgh, to increased mortality, chronic heart disease, and adverse birth outcomes.

"I lost a lot of loved ones and seen other ones pass because of this mill," Clairton resident Carla Beard-Owens said at a 2025 County Council meeting.

U.S. Steel spokesperson Andrew Fulton said that environmental stewardship is a core value for the company and that it remains committed to the safety of its communities. U.S. Steel spends $100 million annually on environmental compliance at the Clairton plant. Nippon Steel Corporation acquired U.S. Steel last year, and the company now operates as a subsidiary of Nippon Steel.