Group Against Smog & Pollution

Some abysmal news to share: As of this week, the Mon Valley has experienced 34 hydrogen sulfide (H₂S) exceedances so far in 2026.  To put that into perspective, during this same period last year, we were looking at just 14.  For the uninitiated: Hydrogen sulfide is an air pollutant with an unmistakable rotten egg odor that all-too-often blankets the Mon Valley.  While the Allegheny County Health Department (ACHD) tracks it, the health and quality-of-life impacts are more tha

The Group Against Smog and Pollution (GASP) has submitted comments on Carlisle Construction’s draft Title V Operating permit issued by the Pennsylvania Department of Environmental Protection (DEP). By way of background: Carlisle Construction is a manufacturer and supplier of building products for the commercial and residential construction markets. GASP's comments on the draft Title V Operating Permit focused on:    the need to include a requirement that emissions from the fa