As per the World Air Quality Report, the most polluted city in the world in 2020 was China’s Hotan. In India, the most polluted city as per the report was Ghaziabad. It was also declared the second most polluted city in the world.
The World Air Quality Report is prepared by Swiss organisation IQAir and aggregates PM2.5 data from 106 countries, collected from ground-based government monitors and a growing network of validated, non-governmental air quality monitors contributed by organizations and individuals in order to learn from the world’s largest air pollution database.
Other key findings of the World Air Quality Report 2020 are as follows:
- Delhi was ranked as the world’s most polluted capital city
- One city in the top ten most polluted cities was not from India
- Bangladesh was ranked the most polluted country
- Compared to north Indian cities, the cities in the Deccan recorded relatively better air quality
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