● Released by: IQ Air, a Swiss air quality technology company
● Purpose: The report is based on PM2.5 data from 106 countries calculated by ground-based monitoring stations, handled by government agencies mostly.
● According to the report, the top most polluted city in the world is Xinjiang in China followed by Ghaziabad in Uttar Pradesh.
● Delhi is the 10th most polluted city and the top polluted capital city in the world in 2020.
● India was ranked as the world’s third most polluted country in 2020 after Bangladesh and Pakistan.
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