A dense fog enveloped Delhi and nearby regions early Saturday (16 November) as the national capital’s air quality index (AQI) remained in the ‘Severe’ category for the fourth straight day. Delhi’s overall AQI was recorded at 404 on Saturday morning, placing it in the ‘Severe’ category, according to data from the Central Pollution Control Board.

Delhi’s air quality remains ‘severe’ for the fourth consecutive day, with the national capital recording an AQI of 436 at 2pm on Saturday. An AQI score ranging between 400 and 500 is considered severe and it is said to cause serious health issues with existing diseases.

Delhi's air quality remains severe, prompting GRAP-III restrictions under which stringent ban will be put in place on construction and demolition activities among others.

The Delhi government has banned private BS III petrol and BS IV diesel vehicles, prohibited the entry of interstate non-electric-CNG buses, certain categories of construction activities, and staggered government office timings,

Delhi’s average AQI has been 424, and to prevent further deterioration, the sub- committee decided to invoke GRAP – III.

The Delhi government has announced a ban on BS-III petrol and BS-IV diesel four-wheelers starting Friday to combat the deteriorating air quality