US AQI
TH AQI
LOCATION COMPARISON
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7 DAYS AGO
STANDARD AQI (US)
350
300
250
200
150
100
50
0
Feb, 21
Feb, 22
Feb, 23
Feb, 24
Feb, 25
Feb, 26
Today
TOP 10 PROVINCES
STANDARD AQI (US)
BEST
WORST
1. Ranong
25
2. Phangnga
29
3. Chumphon
29
4. Prachuap Khiri Khan
31
5. Krabi
37
6. Phuket
46
7. Surat Thani
46
8. Satun
46
9. Trang
46
10. Yala
46
FORECAST
PM 2.5 AQI (US)
February, 27 2026
350
300
250
200
150
100
50
0
0:00
6:00
12:00
18:00
Sat
Sun
Mon
DISCOVER
OUR SENSOR
OUR SENSOR
Check the real-time PM2.5, PM10, and AQI in your area with the dust sensor developed by the Faculty of Engineering, Chulalongkorn University. Track your air quality with our dashboard showing the real-time data that can calculate the Air Quality Index (AQI) in real-time format or standard formats of both Thai and US AQI.
