India, Nov. 13 -- Delhi remained blanketed in a thick layer of smog for the third consecutive day on Thursday, with the city's air quality staying in the 'severe' category.

According to data from the Central Pollution Control Board (CPCB), the average Air Quality Index (AQI) stood at 405 at 10 am, only marginally better than 418 recorded at 4 pm on Wednesday.

As per CPCB's Sameer app, out of 39 active air quality monitoring stations in Delhi, 25 reported 'severe' air quality on Thursday. The worst-affected areas included Bawana (460), Wazirpur (454), and Rohini (447).

On Tuesday, Delhi's AQI had touched 428, the highest level since December 19 last year, when it stood at 451. Meteorologists said the combination of slow winds and fallin...