New Delhi has been adjudged as the world’s most polluted capital city for the third straight year in the 2020 World Air Quality Report by Swiss organisation, IQAir. Globally, New Delhi is ranked as the 10th most polluted city in the world. The topmost polluted city in the world is Xinjiang in China. This is followed by nine Indian cities as the most polluted cities in the world, which are Ghaziabad, Bulandshahar, Bisrakh Jalalpur, Noida, Greater Noida, Kanpur, Lucknow and Bhiwari.
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IQAir report
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