10 Countries With the Worst Air Pollution

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7. United Arab Emirates

Annual Average PM2.5 Concentration (2023): 43.0 μg/m³

The United Arab Emirates is ranked among the countries with the worst air pollution. As of 2023, the country has an annual average particulate matter concentration of 43 μg/m³. The most polluted city in the country is Ras Al Khaimah.

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