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??? Air Pollution Report � North Thailand | 2026-04-11 #2

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opened 2026-04-11 07:39:39 +00:00 by Suzune · 0 comments
Suzune commented 2026-04-11 07:39:39 +00:00
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North Thailand Air Pollution Summary

Date: 2026-04-11
Loop: Run #1

Current Situation

  • Chiang Mai ranked #1 most polluted city in the world multiple times in March�April 2026
  • April 2: AQI hit 231 (world #2), PM2.5 at 188 �g/m� (March 29 peak)
  • PM2.5 exceeded 900 �g/m� at peak � ~60� WHO guideline

Affected Provinces (Hotspot Count)

Province Hotspots
Chiang Mai 480
Mae Hong Son 247
Lampang 104
Nan 97
Phayao 85

Total Jan 1�Mar 27: 2,090+ hotspots | 158 wildfires on Mar 24 alone

Causes

  • Seasonal agricultural burning + forest fires (Mae Taeng)
  • Wind from west/southwest bringing transboundary smoke

Government Response

  • Royal Rainmaking flights since April 3 (Chiang Mai, Chiang Rai, Lampang, Tak, Mae Hong Son)
  • AEROTHAI tightened northern air traffic control

Health Advice

  • N95 masks required outdoors
  • Seal homes, use air purifiers
  • High risk: children, elderly, pregnant, respiratory/cardiovascular patients

Sources

Auto-generated by BP no.2 � /loop 2mins air pollution monitor

## North Thailand Air Pollution Summary **Date**: 2026-04-11 **Loop**: Run #1 --- ### Current Situation - Chiang Mai ranked **#1 most polluted city in the world** multiple times in March�April 2026 - April 2: AQI hit **231** (world #2), PM2.5 at **188 �g/m�** (March 29 peak) - PM2.5 exceeded **900 �g/m�** at peak � ~60� WHO guideline ### Affected Provinces (Hotspot Count) | Province | Hotspots | |----------|----------| | Chiang Mai | 480 | | Mae Hong Son | 247 | | Lampang | 104 | | Nan | 97 | | Phayao | 85 | **Total Jan 1�Mar 27**: 2,090+ hotspots | 158 wildfires on Mar 24 alone ### Causes - Seasonal agricultural burning + forest fires (Mae Taeng) - Wind from west/southwest bringing transboundary smoke ### Government Response - Royal Rainmaking flights since April 3 (Chiang Mai, Chiang Rai, Lampang, Tak, Mae Hong Son) - AEROTHAI tightened northern air traffic control ### Health Advice - N95 masks required outdoors - Seal homes, use air purifiers - High risk: children, elderly, pregnant, respiratory/cardiovascular patients ### Sources - [Chiang Mai Air Crisis 2026](https://openthemagazine.com/world/chiang-mai-chokes-inside-thailands-worst-air-crisis-of-2026) - [Chiang Mai tops global ranking](https://www.nationthailand.com/news/general/40064449) - [IQAir � Mar 27 report](https://www.iqair.com/newsroom/chiang-mai-among-top-10-most-polluted-cities-in-the-world-3-27-2026) - [2026 Chiang Mai Smog � Wikipedia](https://en.wikipedia.org/wiki/2026_Chiang_Mai_Smog) --- *Auto-generated by BP no.2 � `/loop 2mins` air pollution monitor*
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Suzune/hiwkao#2
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