top of page
GASP to Health Officials: Residents Deserve Answers on Mounting Mon Valley H2S Exceedances & What’s Being Done to Stop Days-Long Stench Episodes
The time for improved communications and increased transparency around Mon Valley’s H2S issue is NOW.
May 8, 20243 min read
Join GASP, Residents & Fellow Advocates to Speak Out on Mon Valley Stench; Demand Transparency on H2S Exceedance Problem
Residents deserve answers. And we’re hoping you can join GASP, residents & advocates at the upcoming Allegheny Co. Board of Health meeting.
May 2, 20243 min read
Health Department Launches H2S Dashboard Following Recent Calls from GASP to Ramp Up Transparency
Allegheny County Health Department on Tuesday announced it has launched a new dashboard dedicated to tracking hydrogen sulfide - a move...
Mar 14, 20233 min read
Rotten Egg Stench & Poor Air Quality Return to Mon Valley
Local residents took to CMU CREATE Lab’s Smell PGH app Monday morning to sound off about poor air quality and its associated stench,...
Feb 20, 20232 min read
Air Pollution, Stench Pummels Mon Valley Over Holiday Period
Last week was one of excess for those in and around the Mon Valley, but not for the Thanksgiving-related reasons you might think: sadly,...
Nov 28, 20223 min read
Here's What the Post-Gazette Editorial Board Got Wrong About the Mon Valley's H2S Problem
At GASP, sometimes we read commentaries on air quality so bereft of facts, insight, and empathy that we must respond. The Oct. 18...
Oct 27, 20223 min read
2nd Day in a Row of Skyrocketing H2S for Mon Valley, 5th Exceedance of PA 24-Hour Standard in 6 Days
UPDATE: Poor air quality is expected to continue in the Mon Valley. While the Allegheny County Health Department did not address the most...
Oct 10, 20223 min read
UPDATE: PA’s 1-Hr H2S Standard Exceeded in Mon Valley for 1st Time Since ‘15; GASP Demands Answers
Editor's Note Update #2: The Allegheny County Health Department issued a follow-up public alert regarding hydrogen sulfide levels at the...
Oct 6, 20223 min read
Weekend Sees Yet Another H2S Exceedance for Mon Valley
This marks the 46th day of 2021 when H2S exceeded that standard at the Liberty monitor.
Nov 22, 20212 min read
Abysmal Air Quality Returns to Mon Valley as Three More H2S Exceedances Noted
There have been 45 such exceedances at the Liberty monitor and 17 more at North Braddock.
Nov 18, 20212 min read
<UPDATED> Abysmal Air Quality Continues in the Mon Valley
For the third day in a row, hydrogen sulfide (H2S) levels were so high Tuesday that an exceedance of PA's 24-hour average was guaranteed.
Nov 8, 20211 min read
Allegheny Co. Health Dept. Issues Mon Valley Air Pollution Warning as PM2.5 Concentrations Spike
Allegheny County Health Department (ACHD) Sunday morning issued a Mon Valley Air Pollution Warning.
Nov 7, 20212 min read
Mon Valley Sees 55th H2S Exceedance, Liberty-Clairton Air Quality Again Worst in Nation Friday
For a time this morning, AirNow.gov showed the Liberty-Clairton area as having the worst NowCast Air Quality Index (AQI) in the nation...
Nov 5, 20212 min read
GASP Speaks Out About H2S Violations, Lack of Transparency Over U.S. Steel’s Edgar Thomson Plant
GASP on Wednesday implored the Board of Health to do what they could to increase transparency over the Edgar Thomson enforcement.
Sep 1, 20212 min read
It’s Been Nearly 4 Years EPA, Public Deserves Transparency, Action Regarding Edgar Thomson Emissions
GASP is formally calling on EPA to provide to the public a substantive update on what improvements will be required of U.S. Steel.
Aug 3, 20213 min read
More Air Quality Exceedances for Mon Valley, Allegheny County on Pace to Exceed 2017 H2S Numbers
That makes 29 exceedances of the H2S standard in the past six months at Allegheny County Health Department’s air quality monitor in...
Jun 29, 20211 min read
Air Quality Exceedances Mounting, GASP Again Calls on ACHD to Update Public on Mon Valley Pollution
Allegheny County experienced its 27th H2S exceedance of the year Friday when concentrations exdeeded PA's 24-hour average standard.
Jun 21, 20212 min read
More Unhealthy Air Quality, Exceedances Pervade Mon Valley – Update on H2S Problem Needed
The spate of exceedances so far this year begs the question: What is going on at U.S. Steel’s Clairton Coke Works?
Jun 7, 20213 min read
Watchdog Report: Another Weekend, Another Pair of Air Quality Exceedances for Mon Valley
The Liberty-Clairton area (again) had the worst AQI in the country Saturday morning when it soared into the red, unhealthy-for-all range.Â
May 24, 20212 min read
Mon Valley Experiences Multi-Day Bad-Air Episode, Two More Air Quality Exceedances
It was a rough weekend of air quality for Mon Valley, which experienced another days-long bad-air episode &two more air quality exceedances.
May 17, 20214 min read
bottom of page