Delhi's air quality remained in the "very poor" category for the fourth consecutive day on Wednesday, while the city recorded its second-coldest night of the season

Seventeen monitoring stations across the city recorded "severe" air quality levels on Tuesday. An AQI between zero and 50 is "good," 301-400 "very poor," and above 400 "severe." Despite improved conditions on Sunday with westerly winds up to 15km/h,

While AQI has marginally improved, the city continued to remain covered in dense smog in the early hours of the day

The Central Pollution Control Board (CPCB) reported that the city's 24-hour average AQI was recorded at 303 by 4 pm on Wednesday, November 27, making it the cleanest day of the month for the city.

New Delhi's air quality improved slightly on Wednesday by nearly reaching the 'poor' category from its previous status as 'very poor'.

Delhi’s air quality improved on Wednesday as the AQI (air quality index) remained at the lower end of ‘very poor’ due to strong winds that helped in dispersal of pollutants. Delhi’s Air Quality Early Warning System (AQEWS),