News (May 8th, 2015): Noticed a change in PM10 AQI data? Hourly data (InstantCast) is now in use (more info).
Air Quality Data provided by the Division of Air Quality Data, Air Quality and Noise Management Bureau, Pollution Control Department. (aqmthai.com)
Note that the measurements for SO2 (二酸化硫黄) and O3 (オゾン) are taken from the station Nonsi Witthaya School, Bangkok