India, Dec. 2 -- A thick haze enveloped Delhi amid worsening air quality on Tuesday, even as the minimum temperature rose by nearly four degrees to 9.6degC, around normal for this time of the year, after plummeting to the season's lowest a day earlier.

An Air Quality Index (AQI) of 336 was recorded at 8am on Tuesday, compared to 304 (very poor) at 4pm on Monday and 279 (poor) on Sunday. The AQI deteriorated after a brief improvement on Sunday, when it was below 300, snapping a 24-day streak between November 6 and November 29, when AQI stayed above 300. Three "severe" air days were recorded during this period from November 11 to November 13.

The Air Quality Early Warning System for Delhi said the AQI is now likely to stay "very poor" unt...