temperature inversions

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Allegheny County proposal would require polluters to reduce pollution during unfavorable weather
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Allegheny County proposal would require polluters to reduce pollution during unfavorable weather

Allegheny County proposes new rules to limit industrial and residential air emissions during temperature inversions.

Debate rages on as air quality in Pittsburgh region ranks among the worst in the nation

Debate rages on as air quality in Pittsburgh region ranks among the worst in the nation

Many take the air we breathe here in Pittsburgh for granted, but suddenly it's become the topic of major debate.
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