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Northern, northeastern Thailand choke on PM2.5 as 40 provinces exceed safety limit
Northern, northeastern Thailand choke on PM2.5 as 40 provinces exceed safety limit
FRIDAY, APRIL 17, 2026
PM2.5 levels exceeded the safety standard in 40 provinces on April 17, while Thailand recorded 4,656 hotspots, with the North and Northeast worst hit.PM2.5 engulfs 39 provinces as northern Thailand enters critical stage
PM2.5 engulfs 39 provinces as northern Thailand enters critical stage
TUESDAY, APRIL 14, 2026
PM2.5 levels exceeded the safety standard in 39 provinces on April 14, with northern Thailand facing critical air pollution, according to the government’s air pollution centre.Chiang Mai tops world air pollution ranking as PM2.5 worsens further
Chiang Mai tops world air pollution ranking as PM2.5 worsens further
TUESDAY, APRIL 07, 2026
Chiang Mai was ranked the world’s worst city for air quality on April 7 after AQI hit 209, as dense haze blanketed the city and health risks intensified.Chiang Mai chokes as PM2.5 hits extreme levels, visibility collapses
Chiang Mai chokes as PM2.5 hits extreme levels, visibility collapses
SATURDAY, APRIL 04, 2026
PM2.5 in Chiang Mai surges past 400 µg/m³, triggering severe health warnings as thick haze blankets the city and visibility drops sharplyChiang Mai ranks world’s second most polluted city as AQI hits 231
Chiang Mai ranks world’s second most polluted city as AQI hits 231
THURSDAY, APRIL 02, 2026
Chiang Mai’s air quality index surged to 231 on April 2, placing it second worst in the world as authorities warned of serious health risks.Chiang Mai haze crisis doubles patient numbers as PM2.5 takes a heavier toll
Chiang Mai haze crisis doubles patient numbers as PM2.5 takes a heavier toll
WEDNESDAY, APRIL 01, 2026
Chiang Mai PM2.5 pollution has driven a sharp rise in patients with nosebleeds, eye irritation, allergies and breathing problems, doctors sayChiang Mai tops global air pollution ranking as haze worsens and wildfire spreads in Mae Taeng
Chiang Mai tops global air pollution ranking as haze worsens and wildfire spreads in Mae Taeng
MONDAY, MARCH 30, 2026
On March 30, 2026, IQAir ranked Chiang Mai as the world’s worst for air quality at 10.00am, with an AQI of 233. Officials issued health alerts as wildfire spread in Mae Taeng.Global air pollution worsened in 2025 as Thailand ranked 48th worst
Global air pollution worsened in 2025 as Thailand ranked 48th worst
WEDNESDAY, MARCH 25, 2026
Global air pollution worsened in 2025, with only 14% of cities meeting WHO standards, while Thailand ranked 48th worst at 17.8 µg/m³, IQAir says.Bangkok PM2.5 rises in Lat Krabang, Lak Si and Prawet as temperatures hit 36°C and storms remain possible
Bangkok PM2.5 rises in Lat Krabang, Lak Si and Prawet as temperatures hit 36°C and storms remain possible
TUESDAY, MARCH 17, 2026
Bangkok’s average PM2.5 measured 32 µg/m³ at 7.00am on March 17, 2026, within the 37.5 standard, but several districts exceeded the limit. The weather is forecast to be very hot, up to 36°C, with a 10% chance of thunderstorms.Bangkok PM2.5 worsens with Bang Rak highest; daytime heat to hit 34-36°C
Bangkok PM2.5 worsens with Bang Rak highest; daytime heat to hit 34-36°C
SATURDAY, MARCH 14, 2026
Bangkok’s Air Quality Information Centre reported a citywide PM2.5 average of 32.7 µg/m³ at 7:00am on March 14, 2026, with the highest readings in Bang Rak, Prawet and Lat Krabang. The Meteorological Department expects hot conditions, with a high of 34-36°C and a 10% chance of thunderstorms.