Delhi's air quality slips into 'severe' category
Updated : December 11, 2019 01:34 PM IST
The air quality index (AQI) in the city bordered "severe" levels at 399 at 8:41 am. By 10:40 am, it had entered the severe category and was recorded at 402.
The air quality remained in the "very poor" category in the national capital for the seventh consecutive day on Tuesday as the cold weather and calm winds allowed accumulation of pollutants.