World Air Quality Report 2021: Delhi continues to be most polluted capital city for fourth year

Published: 23rd March 2022 04:37 PM  |   Last Updated: 23rd March 2022 04:37 PM  

Sixty-three of the world's 100 most polluted cities are in India, according to the World Air Quality Report 2021, prepared by Swiss organisation IQAir, released on Tuesday. Delhi remains the most polluted capital city in the world for the fourth consecutive year. 


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