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Hanoi Declared World’s Most Polluted City

Kumari Sonali

Hanoi Declared World’s Most Polluted City:

Hanoi, Vietnam’s capital, has recently been identified as the world’s most polluted city, with PM2.5 levels reaching 266 micrograms per cubic meter. This alarming air quality has raised significant health concerns among residents and prompted government action.On January 3, 2025, AirVisual reported that Hanoi’s PM2.5 levels were the highest globally, indicating severe air pollution.

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