New Delhi:Ahead of Diwali, the air quality in the national capital has taken a turn for the worse.
People in Delhi and its nearby areas Gurugram, Noida, Faridabad and Ghaziabad woke up on Wednesday to a thick blanket of smog covering the region as the AQI plunged to the 'very poor' category.
It is believed that the crop residue burning in the nearby states of Punjab and Haryana are contributing to air pollution.
At around 8:30 am, the overall AQI in Delhi docked up at 309.
An AQI between 0 and 50 is considered 'good', 51 and 100 'satisfactory', 101 and 200 'moderate', 201 and 300 'poor', 301 and 400 'very poor', and 401 and 500 'severe'.