Delhi world's most polluted city: Kano city in Nigeria was at the third spot while Peru’s Lima took the fourth position, according to the report.
In 2021, none of the cities in India met the prescribed World Health Organization air quality standards of 5 micrograms per cubic meter, stated the World Air Quality Report 2021, prepared by Swiss organization IQAir and released globally on Tuesday.
Lucknow, July 3: Ghaziabad and Allahabad have emerged as the two most air polluted cities in Uttar Pradesh in a recent survey by a research and advocacy organisation.The survey conducted by Delhi-based Centre for Science
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