Greenpeace Study: Delhi tops the list of most polluted cities
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A recent study was conducted by NGO Greenpeace, India to measure the air quality in terms of PM 2.5 data as aggregated through the IQAir Air Visual platform in 2018. New Delhi was ranked first among the 62 polluted cities in the report, said the organisation. The report will accompany an online interactive display of the world's most polluted cities, that allows further exploration of air quality across different regions.