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Video | ‘It is extremely uncomfortable’: Hanoi becomes world’s most polluted city

Amid persisting smog, residents and tourists voice concern about their health

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‘It is extremely uncomfortable’: Hanoi becomes world’s most polluted city

‘It is extremely uncomfortable’: Hanoi becomes world’s most polluted city

The Vietnamese capital Hanoi has taken the top spot for air pollution among global cities, according to the Air Quality Index (AQI) operated by leading air-quality technology company IQAir on February 12, 2025.

Persistent smog has residents and tourists alike worried about whether the hazardous air may be causing long-term damage to human health.

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