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  Delhi is world's most polluted city, says report; Kolkata takes second spot

  India | August 18, 2022 21:50 IST

  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.

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  Delhi remains most polluted capital in world, no Indian city met WHO air quality standard: Report

  India | March 22, 2022 15:19 IST

  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.

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  Ghaziabad, Allahabad most polluted in UP, says survey

  India | July 03, 2013 9:35 IST

  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