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" All polltant concentrations are daily average (10
a.m. yesterday - 9 a.m. today).
AQI is based on the 24 hours running average,
calculated at 09.00 hrs today."
| Site | SO2 | NO2 | CO | Ozone | PM10 | AQI |
| Ayutthaya | 5.0 | 20.0 | 0.6 | 29.0 |
40.5 |
50.0 |
| Chacherngsao | 6.0 | 3.0 | 0.6 | 43.0 |
32.5 |
53.0 |
| Chiang Mai | 0.0 | 7.0 | 0.5 | 34.0 |
31.5 |
39.0 |
| Chiangrai | | | 0.8 | 17.0 |
30.1 |
38.0 |
| Chon Buri | 4.0 | 12.0 | 0.3 | 32.0 |
22.8 |
50.0 |
| Hatyai | 3.0 | 23.0 | 0.7 | 13.0 |
19.0 |
33.0 |
| Khon Kaen | 2.0 | 21.0 | 0.8 | 25.0 |
31.2 |
39.0 |
| Lampang | 0.0 | 2.0 | | 18.0 |
30.5 |
38.0 |
| Lumpoon | 1.0 | 4.0 | 0.4 | 29.0 |
36.1 |
60.0 |
| Maehongson | | | | |
31.5 |
39.0 |
| Nakorn Sawan | 2.0 | 8.0 | 0.9 | 34.0 |
35.1 |
50.0 |
| Narativas | | | 0.3 | |
20.4 |
26.0 |
| Nhan | 0.0 | 3.0 | 0.4 | 15.0 |
27.4 |
35.0 |
| Nonthaburi | 6.0 | 21.0 | 0.5 | 29.0 |
48.3 |
66.0 |
| Pathum Thani | 4.0 | 20.0 | 0.8 | 18.0 |
47.9 |
55.0 |
| Phuket | 0.0 | 8.0 | 0.4 | 31.0 |
22.0 |
48.0 |
| Ratcha Buri | 2.0 | 12.0 | 0.8 | |
39.2 |
49.0 |
| Rayong | 1.0 | 10.0 | 0.5 | 32.0 |
39.0 |
49.0 |
| Samut Prakarn | 3.0 | 19.0 | 0.5 | 34.0 |
49.3 |
72.0 |
| Samut Sakorn | 14.0 | 31.0 | 1.0 | 16.0 |
38.5 |
54.0 |
| Sara Buri | 1.0 | 19.0 | 0.6 | 32.0 |
67.7 |
67.0 |
| Uparaj Collage (Chiangmai 36T) | 0.0 | 15.0 | 0.5 | 27.0 |
35.6 |
54.0 |
| Yala | | | 0.6 | |
17.8 |
22.0 |
| Standard |
120 |
* |
* |
* |
120 |
100 | | |
Note
SO2 units : ppb (1/1,000,000,000)
NO2 units : ppb (1/1,000,000,000)
CO units : ppm, 1/1,000,000
Ozone units : ppb, 1/1,000,000,000
PM10 units : µg/m3
Pollutants are 1 hour averages except noted, and PM10 is 24 hour average.
PM10 : particulate matter (dust) <10 microns (raw data)
AQI : Air Quality Index (AQI)
should not exceed 100
* :
24 hour average of ambient standard value
not available.
Monthly and Annual Report on Ambient Air
Quality in Thailand can be obtain from
www.aqnis.pcd.go.th
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