Particulate matter kills people. That was true before the pandemic, and new research has tied it to coronavirus deaths. But the EPA is ignoring scientists who say stricter particulate matter limits could prevent tens of thousands of early deaths.
An audit from a county watchdog agency found the Allegheny County Health Department has improved its permitting program for major polluters, but shows the agency still has work to do to reach full compliance.
The Environmental Protection Agency finalized a rule that could reclassify many "major" sources of pollution as minor ones, allowing facilities to abide by less-stringent emissions standards for dangerous substances such as mercury, lead and arsenic.