The city’s AQI was 401 at 8 am, indicating a high level of pollution. The AQI levels have been rising gradually in Delhi after a slight improvement on Sunday.
The air in Delhi-NCR dipped into the 'severe category' on Wednesday, from 'the 'very poor' category a day earlier, as per the Central Pollution Control Board.
Pollution levels in Delhi and its suburbs increased further overnight with the Air Quality Index (AQI) in the capital recorded at 365 at 9 am on Tuesday.