The Air Quality Index (AQI) is used by various government agencies to report how clean or polluted the air is in your area. For example, you may have spotted this metric popping up in local ...
Delhi's air quality declined to the 'poor' category with an AQI of 223. Of 38 monitoring stations, only Jahangirpuri recorded 'very poor' air quality, while 27 others were in the 'poor' category. The ...