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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."
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| Site | SO2 | NO2 | CO | Ozone | PM10 | AQI |
| Ayutthaya | 4.0 | 17.0 | 1.7 | 34.0 |
65.5 |
104.0 |
| Chacherngsao | 6.0 | 7.0 | 0.3 | 35.0 |
32.8 |
88.0 |
| Chiang Mai | 1.0 | 13.0 | 1.4 | 8.0 |
162.2 |
118.0 |
| Chiangmai | | | | |
98.4 |
87.0 |
| Chiangrai | | | 1.9 | 33.0 |
231.8 |
149.0 |
| Chiangrai(MaeSai) | 2.0 | 29.0 | 2.0 | 27.0 |
292.7 |
175.0 |
| Chon Buri | 2.0 | 9.0 | 0.2 | 14.0 |
43.6 |
52.0 |
| Hatyai | 5.0 | 3.0 | 0.5 | 23.0 |
29.5 |
37.0 |
| Khon Kaen | 2.0 | 21.0 | 0.9 | 25.0 |
52.2 |
58.0 |
| Lampang | | 13.0 | 1.0 | |
131.1 |
105.0 |
| Loei | 10.0 | 2.0 | 1.1 | 13.0 |
59.5 |
62.0 |
| Lumpoon | 1.0 | 9.0 | 0.9 | 40.0 |
157.4 |
116.0 |
| Maehongson | | | 1.7 | 38.0 |
208.0 |
138.0 |
| Nakorn Sawan | 3.0 | 9.0 | 0.6 | 40.0 |
55.3 |
69.0 |
| Narativas | | | 0.2 | |
32.0 |
40.0 |
| Nhan | | 6.0 | 1.2 | 52.0 |
130.9 |
105.0 |
| Nonthaburi | 4.0 | 22.0 | 0.5 | 5.0 |
26.6 |
33.0 |
| Pae | | | | |
|
|
| Pathum Thani | 6.0 | 18.0 | 0.5 | 18.0 |
48.2 |
55.0 |
| Payao | 3.0 | 16.0 | 1.7 | |
192.3 |
131.0 |
| Phuket | 1.0 | 7.0 | 0.2 | 25.0 |
33.6 |
42.0 |
| Ratcha Buri | 3.0 | 6.0 | 0.5 | 20.0 |
38.8 |
49.0 |
| Rayong | 1.0 | 9.0 | | 18.0 |
33.5 |
55.0 |
| Samut Prakarn | 0.0 | 14.0 | 0.1 | 15.0 |
45.1 |
53.0 |
| Samut Sakorn | 3.0 | 20.0 | 1.0 | 14.0 |
28.6 |
36.0 |
| Sara Buri | 3.0 | 19.0 | 0.7 | 35.0 |
101.0 |
88.0 |
| Surat Thani | 2.0 | 8.0 | 0.5 | 19.0 |
49.2 |
56.0 |
| Uparaj Collage (Chiangmai 36T) | 1.0 | 39.0 | | 23.0 |
146.2 |
111.0 |
| Yala | | | 0.5 | |
42.4 |
52.0 |
| 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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