BMA explains 'stinky' air

A passerby walks past a sign displaying the level of PM2.5 in Bangkok on 7 March 2024. (Photo: Apichart Jinakul)
A passerby walks past a sign displaying the level of PM2.5 in Bangkok on 7 March 2024. (Photo: Apichart Jinakul)

The Bangkok Metropolitan Administration (BMA) said that an unpleasant smell in many parts of the capital on Wednesday night was caused by a sudden change of weather mixed with pollutants in the air.

Pornphrom Vikitsreth, an adviser to Bangkok governor Chadchart Sittipunt, spoke on Thursday after many people complained about a burning smell and smog in the city on Wednesday night.

Mr Pornphrom said the wind direction had shifted and was coming in from the east rather than from the Gulf of Thailand as usual.

Many smog hotspots were also detected in nearby provinces over the past 24 hours.

The fluctuating climate aggravated by thunderstorms and high air pressure from the Northeast led to the increase in dust, he said.

This was compounded by the high humidity, which increased the level of PM2.5 pollution.

The haze was also likely caused by gases, including nitrogen oxide and sulphur dioxide, that react to the sunlight and turn into dust, he said, adding this has been a problem for several months.

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  • adviser (noun): a person who gives advice, especially somebody who knows a lot about a particular subject - ที่ปรึกษา
  • aggravate: to make a bad situation or condition worse - ทำให้แย่ลง
  • direction: the way something is moving or coming from - ทิศทาง
  • dust: very small pieces of dirt that cover surfaces inside buildings like a powder - ฝุ่น
  • fluctuate: to change or vary, especially continuously and between one level or thing and another - ผันแปร, ขึ้นๆ ลงๆ
  • governor: a person who is chosen to be in charge of the government of a state or province or a government agency - ผู้ว่าการรัฐ, ผู้ว่าราชการจังหวัด
  • haze: water, smoke or dust in the air that makes it difficult to see clearly - หมอกควัน
  • hotspot: a place where there is a lot of activity, or a higher temperature than normal -
  • humidity: the amount of water that is present in the air - ความชุ่มชื้น
  • pollutant (noun): something that causes pollution - สารพิษ, ของเสีย, สิ่งที่ทำให้สกปรก
  • pressure: a force pressing against something - ความกดดัน
  • smog (noun): clouds of dirty and smokey air - หมอกควัน, ควัน, ควันพิษ,
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