Newspaper article Pittsburgh Post-Gazette (Pittsburgh, PA)

County Must Crack Down on Odor Emissions Violations

Newspaper article Pittsburgh Post-Gazette (Pittsburgh, PA)

County Must Crack Down on Odor Emissions Violations

Article excerpt

Most often our immediate interactions with air are through our noses. Even when the skies look clean, our noses can tell there is a problem because of foul smells. How often does this happen? It happens a lot, according to the "Smell Pittsburgh" app (smellpgh.org) developed by CREATE Lab at Carnegie Mellon University.

In fact, that all-too-familiar "rotten egg" smell - usually hydrogen sulfide (H2S) - was reported to the Smell Pittsburgh app hundreds of times in the past year. Most smelly airborne chemicals have no regulatory concentration limit, but in Allegheny County, there is a limit for hydrogen sulfide. The H2S standard is monitored by the Allegheny County Health Department and has been violated on average more than 50 times a year, over the past six years, at the Liberty Borough monitor in the Mon Valley. …

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