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Chiang Mai records world's most polluted air today; staying indoors advised

Chiang Mai records world's most polluted air today; staying indoors advised

20 Sept 21:29 Key points summarised by AI
  • Chiang Mai has again been declared the city with the world's worst air pollution, driven by dangerously high PM2.5 levels.
  • Authorities urge public and private sectors to implement work-from-home policies and advise tourists to avoid outdoor activities until Thursday for health safety.
  • The severe pollution stems primarily from persistent forest fires, with officials struggling to contain numerous hotspots despite prevention efforts and rewards for arsonist arrests.
  • Fang and Prao districts are declared public disaster zones, as PM2.5 levels across northern and northeastern Thailand significantly exceed safe thresholds, unlike the relatively good air quality in Bangkok and the south.
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