0-50

Good

51-100

Moderate

101-200

Poor

201-300

Unhealthy

301-400

Severe

401-500

Hazardous

Rank Most Polluted 100 Cities MOST POLLUTED 100 CITIES AQI PM2.5 µg/m³
prana air sensible air quality monitor
prana air caaqms ambient air quality monitor Ambient Air Quality Monitor
real-time air quality map AQI Air Quality Map

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