Group Against Smog & Pollution

The Allegheny County Health Department (ACHD) Tuesday morning issued a Mon Valley Air Pollution Warning for Tuesday and all of Wednesday. That, of course, meant that the rolling 24-hour average fine particulate matter (PM2.5) level at ACHD’s air quality monitor in Liberty borough exceeded the federal health-based standard *and* that ACHD is confident poor air quality is likely to continue. For those who might need a refresher on the Mon Valley Air Pollution Episode Rule, chec

Editor’s Note: The Allegheny County Health Department issued the following news release Monday morning. The release followed GASP’s publication of a blog highlighting a recent report that places the blame for years of hydrogen sulfide exceedances “entirely” on U.S. Steel’s Clairton Coke Works facility. Check back, we are following this issue closely and will update you when more information becomes available. The Allegheny County Health Department (ACHD) today announced that