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Worst Air Quality (% Good Days)

Chandler 11%
Paradise Valley 11%
Palm Springs 13%
Newport Beach 34%
Henderson 37%
Charlotte 45%
Las Cruces 45%
Cambridge 46%
Columbia 49%
Greenville 49%
San Luis Obispo 53%
Park City 53%
Valdosta 58%
Provo 59%
Hanover 59%