Hanoi becomes world’s most polluted city

South China Morning Post – 13-2-2025

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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