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...
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Apr 8, 20212 min read
UPDATED | Watchdog Report: Two More Air Quality Exceedances for Mon Valley
This story was updated at 3:28 p.m. April 8 to include information released by the Allegheny County Health Department via the Allegheny...
Apr 5, 20212 min read
UPDATED: Several More H2S Exceedances for Mon Valley as Poor Air Quality Lingers
Editor’s Note: This story was updated at 3:51 p.m. Monday to include today’s exceedances at the Liberty and North Braddock air quality...
Mar 29, 20211 min read
#ICYMI: Mon Valley Tallies Two More Air Quality Exceedances This Past Weekend
Another weekend, another pair of air quality exceedances for the Mon Valley – concentrations of hydrogen sulfide at Allegheny County...
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...
Mar 4, 20212 min read
Same Old Story: More Rotten (Egg) Air Quality, Exceedances, in the Mon Valley
Ambient air concentrations of hydrogen sulfide (H2S) exceeded Pennsylvania’s 24-hour standard in North Braddock and Liberty on Wednesday...
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