Schools can address environmental concerns, such as lead, asbestos and mold. In one survey, more than 90% of Pa. schools reported lead in their drinking water.
Amid protestors, President Biden visited East Palestine a year after the train derailment and announced grants to study health impacts of the chemical release.
How the latest news about a new soot standard, a settlement with U.S. Steel and EPA's rejection of the company's air permit could impact Pittsburgh's air.