Delhi is world’s most polluted capital, 35 Indian cities in top 50: Report
IQAir study found that air quality in China continued to improve last year as more than half of its cities saw lower levels of air pollution when compared to the previous year. New Delhi continued to be the world’s most polluted capital city for the fourth consecutive year followed by Dhaka, N’Djamena, Dushanbe and Muscat …
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