Bangkok air ‘safe’
published : 3 Oct 2019 at 13:47
writer: Gary Boyle
ORIGINAL SOURCE/WRITER: Post Reporters
Fine dust pollution dropped to safe levels in greater Bangkok on Thursday as a high pressure system moved out of Thailand and southeasterly winds brought rain to northen regions, according to the Pollution Control Department.
Director-general Pralong Damrongthai said on Thursday morning that levels of PM2.5 were measured at 13-43 microgrammes per cubic metre of air in Bangkok and adjacent provinces over the previous 24 hours. The safe threshold is set at 50mcg in Thailand.
PM2.5 was 13mcg in Muang district of Samut Prakan province and 43mcg beside Charan Sanitwong Road in Bangkok's Bang Phlad district.
As the high pressure system moved out of the country, southeasterly winds were bringing humidity from the South China Sea and the Gulf of Thailand to the Northeast, the lower North, the East and the Central Plains, Mr Pralong said.
Consequently, rain in the upper regions of the country reduced the accumulation of fine dust in greater Bangkok, he said.
Another high pressure system from China is forecast to cover the Northeast from Friday to next Tuesday.
Vocabulary
- accumulation: increasing over time as more and more is added - การเก็บสะสม, การพอกพูน, การรวมตัวกันมากขึ้น, การเพิ่มจำนวนมากขึ้น,
- adjacent: very near, next to, or touching - ติดกัน
- consequently: as a result; therefore - ดังนั้น
- dust: very small pieces of dirt that cover surfaces inside buildings like a powder - ฝุ่น
- humidity: the amount of water that is present in the air - ความชุ่มชื้น
- PM2.5 (n): atmospheric particulate matter (PM) with a diameter of less than 2.5 micrometres, which is about 3% the diameter of a human hair. It can lodge in the lungs and enter blood vessels, leading to respiratory and cardiovascular disease -
