Pittsburgh Metro Area Continues to Rank Among Worst 25 in Nation for Two Measures of Air Quality
Pittsburgh Metro Area Continues to Rank Among Worst 25 in Nation for Two Measures of Air Quality, But Improved for All Three Measures Tracked, Finds 2020 ‘State of the Air’ Report. Allegheny County Was One of Only 14 Counties in United States with Straight “F” Grades. American Lung Association’s annual air quality report finds nearly…
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