Air Quality Exceedances Abound This Week at Allegheny County Health Department’s Liberty Monitor
Blog Against Smog


- Mar 7, 2022
<UPDATED> No More Excuses for U.S. Steel: ACHD Finds Clairton Coke Works “Entirely” Responsibl

- Mar 2, 2022
GASP to Allegheny County Board of Health: Leverage Your Authority & Demand More From ACHD


- Feb 22, 2022
<UPDATED> More H2S Exceedances at Liberty, Mon Valley Residents Report Stench

- Jan 13, 2022
Allegheny County Health Department Releases 2020 Air Quality Report

- Jan 6, 2022
GASP, Fellow Activists & Residents Tell Board of Health: You’re Not Taking This Seriously

- Nov 5, 2021
Mon Valley Sees 55th H2S Exceedance, Liberty-Clairton Air Quality Again Worst in Nation Friday

- Oct 25, 2021
UPDATED: Mon Valley Experiences Another Air Quality Exceedance, GASP Asks Allegheny Co. Health Dept.

- Oct 14, 2021
Mon Valley Experiences More Malodors, Liberty Monitor Again Exceeds PA Air Quality Standard

- Jun 29, 2021
More Air Quality Exceedances for Mon Valley, Allegheny County on Pace to Exceed 2017 H2S Numbers

- May 19, 2021
Liberty-Clairton Area Dealt More Unhealthy Air Quality, More H2S Exceedances

- Apr 19, 2021
Another Weekend, Another H2S Air Quality Exceedance for Mon Valley

- Apr 14, 2021
Mon Valley Experiences Another H2S Exceedance Tuesday at Liberty Air Quality Monitor

- Mar 4, 2021
Same Old Story: More Rotten (Egg) Air Quality, Exceedances, in the Mon Valley