These are 20 most polluted cities in the world; Rajasthan city tops the list - Hindustan Times

According to the report, Delhi's air pollution, ranked at number 4 globally, increased almost 15 per cent over the previous year.

As many as 35 of the 50 cities with the worst air quality were in India, with New Delhi continuing to be the worlds most polluted capital city for the fourth consecutive year in 2021, according to th… [+2126 chars]

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