Story perspectives

Hanoi's AQI Hits 243: Authorities Urge Industrial Cuts

12/12/2025

Summary

Story summary

On December 11, 2025, Hanoi recorded an Air Quality Index (AQI) of 243, ranking it fourth globally.
Authorities urged industrial plants to reduce operations amid hazardous smog.
The Ministry of Health advised power, steel, and chemical plants to cut output when the AQI exceeds 200.
Major pollution sources are transportation, industrial production, and waste burning; the city plans partial bans on gasoline-powered motorbikes in downtown Hanoi starting mid-2026.

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Story summary

On December 11, 2025, Hanoi recorded an Air Quality Index (AQI) of 243, ranking it fourth globally.
Authorities urged industrial plants to reduce operations amid hazardous smog.
The Ministry of Health advised power, steel, and chemical plants to cut output when the AQI exceeds 200.
Major pollution sources are transportation, industrial production, and waste burning; the city plans partial bans on gasoline-powered motorbikes in downtown Hanoi starting mid-2026.