Mon Valley Air Pollution Watch

Blog Against Smog

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,...

UPDATED: Unhealthy Air Quality Returns to Mon Valley with More of the Same Expected Thursday

UPDATE #2 (4:31 p.m. Wednesday, Nov. 22): The state Department of Environmental Protection on Wednesday afternoon declared Thursday, Nov....

Mon Valley Air Pollution Exceeded National Health Standard Tuesday, Stench Continues While ACHD Mum

UPDATE: Stench and elevated concentrations of H2S persisted Thursday at the Liberty air quality monitor. Another exceedance of...

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...

Air pollution has long been an environmental and public health concern in the Mon Valley, and a spate of recent research studies have...