Delhi, Air quality index and very poor

Cold weather conditions persisted in Delhi on Monday with parts of the city receiving light rainfall and the mercury settling ...
BS 3 petrol and BS 4 diesel cars were banned from roads in Delhi after GRAP Stage 3 measures were implemented on Friday ...
Despite the overall improvement, Delhi witnessed six days of "severe" air quality in December, with AQI readings above 400.
The IMD has predicted rain in northwest India over the next two-three days due to back-to-back western disturbances.