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May 8, 20243 min read
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 2, 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.


Nov 21, 20233 min read
By the Numbers: How GASP Will Put Your Giving Tuesday Donation to Work for All of Us
We know that you’ve probably received DOZENS of emails and have seen even more social media posts from local nonprofits asking for your...

Nov 16, 20231 min read
Here We Go Again: 8 Straight Days of Stench, H2S Exceedances - GASP *Again* Calls on ACHD for Update
Mon Valley friends beware, the stench is really bad today. In addition to starting off the day with one of the worst NowCast AQIs in the...

Nov 3, 20213 min read
GASP to Health Officials: You Have a Responsibility to Residents to Do More About Mon Valley Stench
GASP attended the Allegheny County Board of Health meeting Wednesday to once again request that officials provide an update to the public...

May 19, 20212 min read
Liberty-Clairton Area Dealt More Unhealthy Air Quality, More H2S Exceedances
AQI soared into the red, unhealthy-for-everybody range this morning, peaking at 163. An air dispersion report issued Wednesday by the...

May 3, 20211 min read
April Ends With Three More Air Quality Exceedances in the Mon Valley
That made 12 total exceedances in April – exceedances in the wake of a Notice of Violation against U.S. Steel for H2S violations.

Apr 24, 20212 min read
Allegheny Co. Health Dept. Issues Mon Valley Air Pollution Warning; Yet Another H2 Exceedance Noted
Allegheny County Health Department on Saturday morning issued a Mon Valley Air Pollution Warning through its Allegheny Alerts system.

Apr 19, 20212 min read
Another Weekend, Another H2S Air Quality Exceedance for Mon Valley
The average concentration yesterday was 0.006 ppm, according to preliminary health department data. The state 24-hour standard is 0.005...

Mar 12, 20211 min read
Thursday Marked Fourth Straight Day of Hydrogen Sulfide Exceedances in the Mon Valley
The values in red denote exceedances of PA’s 24-hour H2S standard of 0.005 ppm. Thursday marked the fourth straight day of air quality...

Mar 10, 20211 min read
Mon Valley Again Experiences Worst Air Quality in the Nation, Exceedances Noted
Smell something foul in your neighborhood? If you live in the Mon Valley that’s probably a resounding, “YES.” Terrible air quality has...
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