Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Thailand
Air quality index (AQI) and PM2.5 air pollution in Thailand
LIVE AQI CITY RANKING
Real-time Thailand
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Uttaradit, Uttaradit | 139 |
| 2 | Sam Phran, Nakhon Pathom | 138 |
| 3 | Mae Mo, Lampang | 132 |
| 4 | San Sai, Chiang Mai | 129 |
| 5 | Sukhothai, Sukhothai | 124 |
| 6 | Chiang Mai, Chiang Mai | 119 |
| 7 | Doi Saket, Chiang Mai | 119 |
| 8 | Chiang Rai, Chiang Rai | 110 |
| 9 | Din Daeng, Bangkok | 98 |
| 10 | Bangkok Yai, Bangkok | 90 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
504 Contributors
See all
LIVE AQI CITY RANKING
Real-time Thailand
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Rayong, Rayong | 28 |
| 2 | Ko Pha Ngan, Surat Thani | 29 |
| 3 | Pattaya, Chon Buri | 45 |
| 4 | Ayutthaya, Phra Nakhon Si Ayutthaya | 50 |
| 5 | Thalang, Phuket | 53 |
| 6 | Ratchaburi, Ratchaburi | 57 |
| 7 | Wang Thonglang, Bangkok | 59 |
| 8 | Bang Lamung, Chon Buri | 61 |
| 9 | Bang Sao Thong, Samut Prakan | 61 |
| 10 | Cha-am, Phetchaburi | 63 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
OVERVIEW
How polluted is Thailand?
2023 Air quality average
Moderate
2023 average US AQI
74
!
PM2.5
x4.7
2023 average PM2.5 concentration in Thailand: 4.7 times the WHO annual air quality guideline value
| 2023 Thailand cleanest city | Ko Chang Tai , Trat 20 |
| 2023 Thailand most polluted city | Phan , Chiang Rai 141 |
News
The latest air quality news and resources.
2023 aqi country ranking
How does Thailand rank globally in air pollution?
36/134
Which country had the worst air quality in 2023?
| # | COUNTRY | Population | AVG. US |
|---|---|---|---|
| 1 |  Bangladesh | 169,356,251 | 164 |
| 2 |  Pakistan | 231,402,117 | 160 |
| 3 |  India | 1,407,563,842 | 147 |
| 4 |  Tajikistan | 9,750,064 | 134 |
| 5 |  Burkina Faso | 22,100,683 | 128 |
| 6 |  Iraq | 43,533,592 | 121 |
| 7 |  United Arab Emirates | 9,365,145 | 119 |
| 8 |  Nepal | 30,034,989 | 118 |
| 9 |  Egypt | 109,262,178 | 118 |
| 10 |  Democratic Republic of the Congo | 95,894,118 | 114 |
| 36 | Thailand | 71,601,103 | 74 |
Thailand air quality data attribution
504Contributors
- Thailand Pollution Control Department
123 stations
- Chiang Mai Municipality
1 station
- Embassy of Switzerland
1 station
- Maesot Hospial
1 station
- James Sc
1 station
โรงพยาบาลนาวังเฉลิมพระเกียรติ ๘๐ พรรษา1 station
Top 20 Government Contributors
GWF Air Detective Volunteer11 stations
MFLF2 stations
The Royal Bangkok Sports Club2 stations
Anya ราชพฤกษ์-นครอินทร์1 station
Bueng Phra Subdistrict1 station
Chollada Suvarnbhumi1 station
DC Dental Clinic Chanthaburi1 station
GBBI1 station
Sarutpat Sutthitham1 station
- Good Time Foundation
1 station
Heinrich Böll Stiftung Southeast Asia1 station
BGBK1 station
muse1 station
Makhampom Foundation1 station
DKK1 station
Perfect Place Rt. Saima1 station
STOCK EXCHANGE OF THAILAND1 station
Greenpeace Thailand1 station
- GJN
1 station
Top 20 Non-profit Organization Contributors
AiroTEC CMRU6 stations
Sarit Tiyawongsuwan5 stations
TU Airvisual5 stations
Khon Kaen University3 stations
SISB School3 stations
AISB Campus 312 stations
- Baanploypoom Kindergarten
2 stations
Chiang Mai International School2 stations
TSM GROUP2 stations
International Community School Bangkok2 stations
Kmutt_Ratchaburi_Rc_12 stations
MCRS [Mareeruk Chiang Rai School]2 stations
SISB Schools2 stations
St Andrews International School Bangkok2 stations
TSIS International School2 stations
Thai Christian School2 stations
VERSO International School2 stations
- AISB
1 station
American Pacific International School1 station
Top 20 Educational Contributors
Sansiri11 stations
- LIGMAN
5 stations
Happy & Healthy Bike Lane4 stations
- BG-Group
2 stations
Ya_Phrmma2 stations
- Srithaigranite (ศรีทัยแกรนิต)
2 stations
Siam Hospital Supply Co., Ltd.2 stations
Bangkok IQ Air Station1 station
- Baan Siriporn Resort
1 station
Banana Coding1 station
Banbungicefactory1 station
Blue Tree Phuket1 station
- Kanit Chairatana
1 station
CM Mediclinic1 station
cafevelodome1 station
- Courtyard Villa Rama9
1 station
DTGO CampUs by LAEDUU1 station
Devasom Resorts1 station
Kongpol Kumjonsukrujee1 station
Emerald Green1 station
Top 20 Corporate Contributors
- ใจหยุด 24 น.
4 stations
Na Bann Nok3 stations
Banana2 stations
Sonthaya Semthapphra2 stations
paeplepunplan2 stations
- Mawin
2 stations
Volodymyr 沃洛迪米爾2 stations
- KaoChao
2 stations
- Arkadiy Kulev
2 stations
Capt.Husky1 station
- Sukhumvit81
1 station
rajadamri condo1 station
Kim Pakiny1 station
- Pisanupong JP
1 station
@Sipatphong+1 station
- 456 Krisadanakorn 20
1 station
6th Ave. Sukhumvit 151 station
AiroTEC CMRU1 station
- Alex K.
1 station
- benjamas sittidech
1 station
Top 20 Individual Contributors
99 Anonymous contributors99 stations
Anonymous Contributors
Which is the most polluted state in Thailand?
- Amnat Charoen
- Ang Thong
- Bangkok
- Buriram
- Chachoengsao
- Chai Nat
- Chaiyaphum
- Changwat Bueng Kan
- Changwat Ubon Ratchathani
- Changwat Udon Thani
- Chanthaburi
- Chiang Mai
- Chiang Rai
- Chon Buri
- Chumphon
- Kalasin
- Kamphaeng Phet
- Kanchanaburi
- Khon Kaen
- Krabi
- Lampang
- Lamphun
- Loei
- Lop Buri
- Mae Hong Son
- Maha Sarakham
- Mukdahan
- Nakhon Nayok
- Nakhon Pathom
- Nakhon Phanom
- Nakhon Ratchasima
- Nakhon Sawan
- Nakhon Si Thammarat
- Nan
- Narathiwat
- Nong Bua Lamphu
- Nong Khai
- Nonthaburi
- Pathum Thani
- Pattani
- Phangnga
- Phatthalung
- Phayao
- Phetchabun
- Phetchaburi
- Phichit
- Phitsanulok
- Phra Nakhon Si Ayutthaya
- Phrae
- Phuket
- Prachin Buri
- Prachuap Khiri Khan
- Ranong
- Ratchaburi
- Rayong
- Roi Et
- Sa Kaeo
- Sakon Nakhon
- Samut Prakan
- Samut Sakhon
- Samut Songkhram
- Sara Buri
- Satun
- Sing Buri
- Sisaket
- Songkhla
- Sukhothai
- Suphan Buri
- Surat Thani
- Surin
- Tak
- Trang
- Trat
- Uthai Thani
- Uttaradit
- Yala
- Yasothon
AQI US, Metric