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??? Air Pollution Report � North Thailand | 2026-04-11 #1

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opened 2026-04-11 07:39:29 +00:00 by Suzune · 0 comments
Suzune commented 2026-04-11 07:39:29 +00:00
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North Thailand Air Pollution Summary

Date: 2026-04-11 12:xx SEAST
Source: IQAir, Nation Thailand, OpenTheMagazine

Current Situation

  • Chiang Mai has 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)
  • PM2.5 has exceeded 900 �g/m� at peak � ~60� the WHO guideline
  • Entire city shrouded in white haze, visibility severely reduced

Affected Provinces (Hotspot Count)

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

Total hotspots Jan 1�Mar 27: 2,090+
Wildfires on Mar 24 alone: 158 across 15 districts

Causes

  • Seasonal agricultural burning
  • Forest fires (Mae Taeng wildfire)
  • Unfavourable wind from west/southwest bringing transboundary pollution

Government Response

  • Royal Rainmaking flights since April 3 (Chiang Mai, Chiang Rai, Lampang, Tak, Mae Hong Son)
  • AEROTHAI tightened northern air traffic control due to PM2.5 visibility impact
  • Government restrictions on agricultural burning (hotspots persist despite ban)

Health Advice

  • Wear N95 masks outdoors
  • Keep homes sealed, use air purifiers
  • High-risk groups: children, elderly, pregnant, those with respiratory/cardiovascular conditions

Sources

Auto-generated by BP no.2 loop � every 2 minutes

## North Thailand Air Pollution Summary **Date**: 2026-04-11 12:xx SEAST **Source**: IQAir, Nation Thailand, OpenTheMagazine --- ### Current Situation - Chiang Mai has **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) - PM2.5 has exceeded **900 �g/m�** at peak � ~60� the WHO guideline - Entire city shrouded in white haze, visibility severely reduced ### Affected Provinces (Hotspot Count) | Province | Hotspots | |----------|----------| | Chiang Mai | 480 | | Mae Hong Son | 247 | | Lampang | 104 | | Nan | 97 | | Phayao | 85 | **Total hotspots Jan 1�Mar 27**: 2,090+ **Wildfires on Mar 24 alone**: 158 across 15 districts ### Causes - Seasonal agricultural burning - Forest fires (Mae Taeng wildfire) - Unfavourable wind from west/southwest bringing transboundary pollution ### Government Response - Royal Rainmaking flights since April 3 (Chiang Mai, Chiang Rai, Lampang, Tak, Mae Hong Son) - AEROTHAI tightened northern air traffic control due to PM2.5 visibility impact - Government restrictions on agricultural burning (hotspots persist despite ban) ### Health Advice - Wear N95 masks outdoors - Keep homes sealed, use air purifiers - High-risk groups: children, elderly, pregnant, those with respiratory/cardiovascular conditions --- ### Sources - [Chiang Mai Air Crisis 2026 � OpenTheMagazine](https://openthemagazine.com/world/chiang-mai-chokes-inside-thailands-worst-air-crisis-of-2026) - [Chiang Mai tops global ranking � Nation Thailand](https://www.nationthailand.com/news/general/40064449) - [Chiang Mai #2 most polluted, AQI 231 � Nation Thailand](https://www.nationthailand.com/news/general/40064573) - [IQAir � Chiang Mai among top 10 (Mar 27)](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) - [Northern Thailand PM2.5 persists � Nation Thailand](https://www.nationthailand.com/health-wellness/40064598) --- *Auto-generated by BP no.2 loop � every 2 minutes*
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