Delhi’s air quality remained stagnant in the “very poor” category on Tuesday, with experts warning that it may deteriorate to “severe” levels in the next 24 hours due to a change in wind patterns. None of the 39 monitoring stations in the capital recorded the air quality in the “severe”

The national capital woke up to a thick blanket of smog on Tuesday morning as air quality continued to languish in the `very poor` category, according to the Central Pollution Control Board (CPCB). However,