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 air quality remains 'severe', prompting government restrictions and bans on vehicles to combat pollution.

The air quality of the national capital remained in the "severe" category on Saturday morning with the AQI settling at 407 at 9 am, according to the Sameer app that provides hourly updates of the national AQI published by the Central Pollution Control Board (CPCB).

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.