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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 | 15.0 | 0.4 | 32.0 |
60.2 |
83.0 |
| Chacherngsao | 3.0 | 6.0 | 0.4 | 32.0 |
36.4 |
76.0 |
| Chiang Mai | 1.0 | 16.0 | 1.2 | 47.0 |
167.8 |
121.0 |
| Chiangmai | | | | |
113.4 |
96.0 |
| Chiangrai | | | 2.0 | 39.0 |
247.9 |
156.0 |
| Chiangrai(MaeSai) | 2.0 | 30.0 | 2.1 | 27.0 |
296.4 |
177.0 |
| Chon Buri | 6.0 | 8.0 | 0.1 | 31.0 |
14.9 |
53.0 |
| Hatyai | 1.0 | 4.0 | 0.2 | 18.0 |
28.4 |
36.0 |
| Khon Kaen | 2.0 | 19.0 | 0.6 | 40.0 |
52.2 |
65.0 |
| Lampang | 0.0 | 19.0 | 1.1 | 38.0 |
149.4 |
113.0 |
| Lumpoon | | 8.0 | 0.8 | 47.0 |
162.5 |
118.0 |
| Maehongson | | | 1.6 | 41.0 |
184.9 |
128.0 |
| Nakorn Sawan | 3.0 | 8.0 | 0.8 | 40.0 |
64.9 |
75.0 |
| Narativas | | | 0.2 | |
29.5 |
37.0 |
| Nhan | 1.0 | 11.0 | 1.1 | 50.0 |
130.7 |
105.0 |
| Nonthaburi | 3.0 | 15.0 | 0.6 | 6.0 |
|
16.0 |
| Pae | 5.0 | 17.0 | 0.8 | 40.0 |
81.2 |
76.0 |
| Pathum Thani | 5.0 | 11.0 | 0.5 | 21.0 |
42.0 |
51.0 |
| Payao | 3.0 | 18.0 | 1.6 | |
193.3 |
132.0 |
| Phuket | 0.0 | 7.0 | 0.2 | 26.0 |
27.7 |
37.0 |
| Ratcha Buri | 3.0 | 6.0 | 0.5 | 27.0 |
45.6 |
57.0 |
| Rayong | 1.0 | 7.0 | 0.3 | 24.0 |
36.3 |
58.0 |
| Samut Prakarn | 2.0 | 22.0 | 0.8 | 14.0 |
46.9 |
54.0 |
| Samut Sakorn | 3.0 | 17.0 | 0.7 | 19.0 |
34.2 |
43.0 |
| Sara Buri | 2.0 | 19.0 | 0.8 | 32.0 |
86.3 |
84.0 |
| Surat Thani | 2.0 | 6.0 | 0.3 | 18.0 |
32.5 |
41.0 |
| Uparaj Collage (Chiangmai 36T) | 2.0 | 41.0 | 0.9 | 30.0 |
176.7 |
125.0 |
| Yala | | | 0.5 | |
43.8 |
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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