New Delhi, Nov. 13 -- Delhi's air quality deteriorated to hazardous levels on Friday morning, with the national capital's overall Air Quality Index (AQI) reaching 403 at 8.40 am, according to data from Central Pollution Control Board (CPCB).

According to a report by news agency ANI, the average AQI of the capital was 494 at 7.31 am.

Dense fog and pollution engulfed several parts of the city, reducing visibility, while multiple monitoring stations recorded severe pollution levels.

According to CPCB, IIT Delhi was among the worst-affected locations, recording an AQI of 488. ITO followed with an AQI of 455, JNU 451 while Anand Vihar recorded 419, Rohini 413 and Rajokri Border 402. All fell in the severe category.

Other parts of the natio...