Regional Daily Air Quality


" 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."

10-Mar-10
SiteSO2NO2COOzonePM10AQI
Ayutthaya4.017.01.734.0 65.5  104.0
Chacherngsao6.07.00.335.0 32.8  88.0
Chiang Mai1.013.01.48.0 162.2  118.0
Chiangmai 98.4  87.0
Chiangrai1.933.0 231.8  149.0
Chiangrai(MaeSai)2.029.02.027.0 292.7  175.0
Chon Buri2.09.00.214.0 43.6  52.0
Hatyai5.03.00.523.0 29.5  37.0
Khon Kaen2.021.00.925.0 52.2  58.0
Lampang13.01.0 131.1  105.0
Loei 10.02.01.113.0 59.5  62.0
Lumpoon1.09.00.940.0 157.4  116.0
Maehongson1.738.0 208.0  138.0
Nakorn Sawan3.09.00.640.0 55.3  69.0
Narativas0.2 32.0  40.0
Nhan6.01.252.0 130.9  105.0
Nonthaburi4.022.00.55.0 26.6  33.0
Pae  
Pathum Thani6.018.00.518.0 48.2  55.0
Payao3.016.01.7 192.3  131.0
Phuket1.07.00.225.0 33.6  42.0
Ratcha Buri3.06.00.520.0 38.8  49.0
Rayong1.09.018.0 33.5  55.0
Samut Prakarn0.014.00.115.0 45.1  53.0
Samut Sakorn3.020.01.014.0 28.6  36.0
Sara Buri3.019.00.735.0 101.0  88.0
Surat Thani2.08.00.519.0 49.2  56.0
Uparaj Collage (Chiangmai 36T)1.039.023.0 146.2  111.0
Yala0.5 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


Bangkok Air Quality Data
Last Modified: 02-Mar-10 at 12:08 PM