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Top News for Pittsburgh & Western Pennsylvania, written and selected by award-winning journalists and scientists at Environmental Health News.

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The rival nominees for Allegheny County executive disagree on whether to frack and industry's role in air quality, among other things.

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Springdale residents who grappled with smokestack demolition in June argue the implosion would cause air quality issues.

Fifteen years after Pennsylvania banned smoking in most public places, lawmakers are considering ending the exception for casinos.