New Delhi, Nov. 6 -- Delhi's air quality remained dangerously close to the severe category on Friday, with several parts of the national capital recording alarming pollution levels.

According to an analysis of Central Pollution Control Board data by the Hindustan Times Pollution Dashboard, 31 monitoring stations recorded severe air quality, while another 28 fell in the very poor category.

Delhi's overall AQI stood at 391 at 12 pm Friday, just nine points below the threshold of 401, beyond which air quality is classified as severe. The dashboard calculates the city's average using readings from monitoring stations reporting data to the CPCB.

The 10 most polluted monitoring locations in Delhi, according to the latest dashboard update, we...