BMA prepares to fight PM2.5 dust

Bumper to bumper: Public vans wait to pick up passengers at a bus stop.  (Photo: Pattarapong Chatpattarasill)
Bumper to bumper: Public vans wait to pick up passengers at a bus stop. (Photo: Pattarapong Chatpattarasill)

The Bangkok Metropolitan Administration (BMA) has prepared measures to curb the hazardous ultra-fine PM2.5 dust pollution, which is expected to escalate to a high level from Friday until Sunday.

If PM2.5 dust levels hit more than 76 microgrammes per cubic metre, the red level for dust pollution, in two to five districts, the BMA's Department of Education will consider suspending classes at schools across the city for 15 days, Deputy Bangkok Governor Chakkapan Phewngam said on Thursday

However, if the situation is even worse, with five or more districts being declared red zones, the Bangkok governor may consider ordering a shutdown until the situation returns to a safe level, Mr Chakkapan said.

Aside from this, the BMA is preparing to step up controls of PM2.5 dust sources, particularly traffic emissions, the most common cause of the dust, he said.

The BMA will also be working together with the Pollution Control Department to inspect more sources of PM2.5 dust, including factories, he said.

Some factories may be ordered to stop operating due to the serious pollution situation, he said.

An adviser to the Bangkok governor said he had received a report that the PM2.5 dust levels will likely hit 37.6 to 75µg/m³ in Bangkok from tomorrow to Sunday.


  • adviser (noun): a person who gives advice, especially somebody who knows a lot about a particular subject - ที่ปรึกษา
  • declare: to announce officially - ประกาศ
  • dust: very small pieces of dirt that cover surfaces inside buildings like a powder - ฝุ่น
  • emissions: gases going into the air - การปล่อยก๊าซเสียสู่ท้องฟ้า
  • factory: a building or group of buildings where goods are made - โรงงาน
  • governor: a person who is chosen to be in charge of the government of a state or province or a government agency - ผู้ว่าการรัฐ, ผู้ว่าราชการจังหวัด
  • pollution (noun): contaminated, when something has been made dirty, poisonous, unpleasant to see or smell and possibly dangerous to health - การทำให้เป็นมลพิษ, การทำให้สกปรก, ภาวะมลพิษ, สภาวะมลพิษ, มลภาวะเป็นพิษ, สภาพเป็นพิษ, ความสกปรก
  • suspend: to stop something for a short time - หยุดชั่วคราว
  • μg/m³: microgrammes per cubic metre, a measure used for air pollution -
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