KFF Health News Apr 13 2026 North America's largest coke plant hugs the west bank of Pennsylvania's Monongahela River, belching out emissions from turning superheated coal into a carbon-rich fuel. Researchers say the children at Clairton Elementary School about a mile away pay the price. They discovered the students there and at other elementary schools near major pollution sites in Pennsylvania had higher asthma rates than other children in the state. Residents and environmental advocates saw