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. Unprecedented Air Quality Levels On January 3, 2025, AirVisual reported that Hanoi’s PM2.5 levels were the highest globally, […]
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