New Delhi, Nov. 3 -- Air pollution in the national capital worsened ahead of Diwali, with Delhi's overall Air Quality Index (AQI) reaching 451 at 8 am on Tuesday, indicating "hazardous" air quality and raising concerns over the deteriorating pollution levels across the city.

According to data from the Central Pollution Control Board (CPCB), several monitoring stations in Delhi recorded AQI levels in the severe category, while many other areas continued to experience very poor air quality.

Rohini recorded an AQI of 429, followed by Punjabi Bagh at 424 and Bawana at 408, placing all three areas in the severe category.

The pollution levels remained in the very poor category at several other locations. Patparganj recorded an AQI of 379, fo...