Air quality in Delhi fluctuating between 'very poor' and 'severe' categories
Updated: January 21, 2019 10:13 IST
Delhi's air quality vary between 'very poor' and 'severe' categories on Sunday as wind speed dropped and slowed down dispersion of pollutants, the authorities said.
According to Central Pollution Control Board data, the overall air quality index (AQI) in the city was 399, which falls in the 'very poor' category, and remains just two points below 'severe'.
The air quality on Sunday morning was recorded in the 'severe' category, CPCB data showed.
An AQI between 100 and 200 comes under 'moderate' category, 201 and 300 is considered 'poor', 301 and 400 'very poor', while that between 401 and 500 is 'severe'.