Delhi's air quality deteriorates for 4th straight day

Delhi's deteriorating air quality is heading towards another severe pollution spell ahead of Diwali, with 22 monitoring stations recording an Air Quality Index (AQI) above 400 on Thursday. The city's average AQI stood at 369 at 4 pm, marking the fourth consecutive day of very poor air quality. The average AQI has risen from 324 on Monday to 350.