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Seriously harmful levels of PM2.5 pollution were recorded in Bangkok and 20 surrounding provinces on Wednesday morning, while unsafe air quality affected a total of 54 provinces nationwide.

The Geo-Informatics and Space Technology Development Agency (GISTDA) reported that at 7am, PM2.5 levels were very high, between 79.2 and 108 microgrammes Thailand’s official safety threshold for PM2.5 is set at 37.5µg/m³.

The highest pollution levels were recorded in provinces near Bangkok. Samut Sakhon reported the worst air quality at 108µg/m³, followed by Nakhon Pathom at 102.1µg/m³ and Nonthaburi at 101.1µg/m³.

Bangkok followed closely with a PM2.5 level of 98.5µg/m³. Neighbouring provinces Samut Songkhram and Pathum Thani also experienced severe pollution, with readings of 96.8µg/m³ and 95.2µg/m³ respectively.

Many other provinces across central, eastern and western Thailand were also shrouded in hazardous haze. Meanwhile, several provinces experienced orange-level pollution, which can begin to affect health, while others recorded moderate to good air quality. Mae Hong Son stood out with very good air quality, reporting a PM2.5 level of just 12.9µg/m³, reported the Bangkok Post

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All Locations Listed by Air-Quality Level

🔴 Red level (Seriously harmful)

• Bangkok

• Samut Sakhon

• Nakhon Pathom

• Nonthaburi

• Samut Songkhram

• Pathum Thani

• Ang Thong

• Ayutthaya

• Samut Prakan

• Ratchaburi

• Sing Buri

• Suphan Buri

• Phetchaburi

• Chachoengsao

• Lop Buri

• Sa Kaeo

• Kanchanaburi

• Chon Buri

• Prachin Buri

• Prachuap Khiri Khan

• Saraburi

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🟠 Orange level (Starting to affect health)

• Nakhon Nayok

• Khon Kaen

• Chai Nat

• Uthai Thani

• Nakhon Ratchasima

• Rayong

• Chanthaburi

• Trat

• Maha Sarakham

• Kalasin

• Chaiyaphum

• Nakhon Sawan

• Udon Thani

• Phetchabun

• Nong Bua Lam Phu

• Buri Ram

• Loei

• Surin

• Phichit

• Nong Khai

• Phitsanulok

• Roi Et

• Kamphaeng Phet

• Ubon Ratchathani

• Tak

• Si Sa Ket

• Mukdahan

• Sakon Nakhon

• Nakhon Phanom

• Uttaradit

• Amnat Charoen

• Phuket

• Yasothon

• Sukhothai

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🟡 Moderate air quality

• Phatthalung

• Pattani

• Nan

• Phangnga

• Bueng Kan

• Trang

• Krabi

• Satun

• Narathiwat

• Phrae

• Yala

• Surat Thani

• Nakhon Si Thammarat

• Songkhla

• Lampang

• Lamphun

• Phayao

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🟢 Good air quality

• Chumphon

• Ranong

• Chiang Rai

• Chiang Mai

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🟢 Very good air quality

• Mae Hong Son

  

Adapted by ASEAN Now from Bangkok Post 2026-01-14

 

 

At 7am today, I could not see Koh Larn from my Jomtien Beach condo balcony. That means very dense pollution.

Will TAT be using Lisa to spread the above information to the rest of the planet?

Does TAT care about the health of tourists who may suffer unhealthy respiratory conditions BEFORE arriving in Thailand?