Meanwhile, local authorities put the measurements in the low-to-mid 100 micrograms – still high above official “safe” limits. The Pollution Control Department (PCD) and Greenpeace issued an air pollution alert for residents of Bangkok other major cities in the upper part of the country, after measurements showed that the level of PM2.5 has risen beyond safe limit in many provinces. The PCD sets 50 micrograms as Thailand’s safe level, while the World Health Organisation’s limit is 25 micrograms. PCD said that the severe air pollution in Bangkok was a result of moist and cool weather trapping pollution within the city, The Meteorological Department predicted that the cold and misty weather in Bangkok would continue until Sunday. Due to this weather pattern, officials predicted that air pollution will remain a serious problem in Bangkok until at least this coming weekend.

Source: The Nation Bangkok February 08, 2018 08:37 UTC