Real Time AQI: Top Polluted Cities in United States

Mono County, California

Unhealthy Air Quality Index

AQI: 151
Douglas County, Nevada

USG Air Quality Index

AQI: 132
Inyo County, California

USG Air Quality Index

AQI: 129
Plumas County, California

USG Air Quality Index

AQI: 122
Fairbanks North Star, Alaska

USG Air Quality Index

AQI: 117
Valley County, Idaho

USG Air Quality Index

AQI: 112
Missoula County, Montana

USG Air Quality Index

AQI: 112
Klamath County, Oregon

USG Air Quality Index

AQI: 109
Stanislaus County, California

USG Air Quality Index

AQI: 107
Yakima County, Washington

USG Air Quality Index

AQI: 103

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