5 Most Air Polluted Countries in Asia

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1. Bangladesh

Annual Average PM2.5 Concentration (2023): 79.9 μg/m³

Bangladesh is ranked 1st on our list of the most air polluted countries in Asia. As of 2023, the country has an annual average particulate matter concentration of 79.9 μg/m³, 16 times higher than the WHO standard.

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