US AQI
TH AQI
LOCATION COMPARISON
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7 DAYS AGO
STANDARD AQI (US)
350
300
250
200
150
100
50
0
Sep, 17
Sep, 18
Sep, 19
Sep, 20
Sep, 21
Sep, 22
Today
TOP 10 PROVINCES
STANDARD AQI (US)
BEST
WORST
1. Nakhon Phanom
12
2. Mae Hong Son
12
3. Kamphaeng Phet
12
4. Phra Nakhon Si Ayutthaya
17
5. Ubon Ratchathani
17
6. Udon Thani
17
7. Loei
17
8. Roi Et
17
9. Sakon Nakhon
17
10. Phitsanulok
17
FORECAST
PM 2.5 AQI (US)
September, 23 2025
350
300
250
200
150
100
50
0
0:00
6:00
12:00
18:00
Wed
Thu
Fri