Air Quality Index Air Quality Index AQI Current Air Quality Primary Pollutant LIVE CAM Previous 7 day AQI Current day AQI Previous 7 day Temp Current day Temp AQI Data O3 AQI Current O3 concentration ppbv Previous 7 day O3 Current day O3 O3 Data PM2.5 AQI Current PM2.5 concentration μg/m³ Previous 7 day PM2.5 Current day PM2.5 PM2.5 Data PM10 AQI Current PM10 concentration μg/m³ Previous 7 day PM10 Current day PM10 PM10 Data CO AQI Current CO concentration ppbv Previous 7 day CO Current day CO CO Data NO2 AQI Current NO2 concentration ppbv Previous 7 day NO2 Current day NO2 NO2 Data Useful Links About Ozone (O3) Pollution About PM (PM2.5; PM10) Pollution About Carbon Monoxide (CO) Pollution About Nitrogen Dioxide (NO2) Pollution How is AQI Defined Here?