Whatever the causes of the smog, by one ranking Delhi was not just the most polluted city in the world, but “nearly five times as bad as the second most polluted city, Dhaka,” in Bangladesh next door, as Shashi Tharoor, a leader of the opposition in Parliament and best-selling author, posted on X.

Unhealthy

Delhi woke up to smog and 'very poor' air quality on Monday morning, with AQI in several areas exceeding 300. While GRAP IV restrictions remain in effect, authorities are set to review them, considering stubble burning and local transport as major pollution contributors over the weekend.

Delhi's air quality index receded to the poor range on Sunday, aided by consistent winds and less moisture, after a Saturday with a sever AQI score.The air quality index (AQI) was 348 at 11am, fell to 323 by 3pm and was 308 by 6pm.

Delhi's air quality stayed above 300 throughout November, with the air quality under 'very poor', 'severe' and 'severe plus' categories.

On Sunday, as per the 4 pm bulletin by the Central Pollution Control Board (CPCB), the Air Quality Index (AQI) was recorded at 318 in the lower end of the ‘very poor’ category. At 6 am, the air quality was 370.

Delhi's air quality improves from 'severe' to 'very poor' category, with AQI at 357, but Anand Vihar remains 'severe'.