AQI, Delhi and central pollution control board

Delhi’s AQI reached 427, falling into the ‘severe’ category. Nine stations recorded ‘severe plus’ air quality, which affected ...
Delhi experienced worse-than-predicted air quality, with 'severe' to 'severe plus' AQI levels despite forecasts of 'very poor ...
After a brief respite, the air quality in Delhi has once again plunged into the "severe" category on Friday, with the 24-hour ...