Delhi's air quality improved slightly from 'very poor' on Tuesday to 'poor' on Wednesday morning, as per the Central Pollution Control Board (CPCB), reported news agency ANI.

As per the data from CPCB, the Air Quality Index (AQI) at Anand Vihar stood at 291, in the IGI airport area at 279, in the ITO at 252, and in the Narela area at 283 on Wednesday.