Delhi's air quality marginally improved to 'very poor' from the 'severe' category on November 9. As per SAFAR's analysis, an overall air quality index (AQI) of 372 was reported in the national capital today. Due to the accumulation of pollutants from fireworks on Diwali and stubble burning, Delhi's air quality was classified as' severe' for three days in a row until November 8.
