For decades, much of the Ohio River was used as an industrial sewer. And that long legacy of pollution is still being felt all along the river's near-thousand-mile course.
Back in 2014, Ten Mile Creek was suspected to have dangerously high levels of radium. But recent tests by the Pennsylvania DEP now show that levels are within federal safety standards.
What exactly can the chemical found in Teflon do to your health? We chat with a reporter who's covered the class-action lawsuit over the health impacts of Dupont's C8.
The Allegheny County Health Department has been so late in keeping up on its paperwork for air quality permits that three environmental groups are asking the U.S. EPA to get involved.
It's not that companies aren't applying to renew their permits. It's that government regulators are failing to act on new applications—sometimes for years.
Shell's new petrochemical facility in western Pennsylvania could bring emissions of some air pollutants back to levels the region hasn't seen since the 1990s.