The national capital recorded its air quality in the 'very poor' category on Thursday morning even as experts said the situation was much

New Delhi: The national capital recorded its air quality in the 'very poor' category on Thursday morning even as experts said the situation was much better compared to two days ago when pollution levels were above the emergency level.

A change in the wind direction from north westerly to north easterly was the reason behind the dip in pollution levels as it reduced the contribution of stubble burning significantly.

Delhi's air quality

The city recorded an air quality index (AQI) of 315 at 9 am. The 24-hour average AQI was 344 on Wednesday and 476 on Tuesday.

Delhi witnessed six severe air days on the trot from November 4 to November 9, according to Central Pollution Control Board (CPCB) data.

The AQI in neighbouring cities of Faridabad (306), Ghaziabad (336), Noida (291), Greater Noida (322), and Gurgaon (261), which fall in the National Capital Region (NCR), was also recorded in the poor and "very poor" categories.

Delhi's air qualityAn official of the India Meteorological Department (IMD) said the situation is much better compared to Tuesday.

The IMD said winds were calm in the morning and the minimum temperature was 11.6 degrees Celsius.