The air quality index (AQI) of India's capital New Delhi was recorded in the 'very poor' category on Saturday (Nov 18), as the average AQI was 398. The AQI remained in the 'severe' category for three days and showed little improvement as it reached the ‘very poor’ category on Saturday.

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India: Delhi's AQI reaches 'very poor' category after recording 'severe' category for three days