Bangkok PM2.5 levels hit danger zone | Bangkok Post: learning

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Bangkok PM2.5 levels hit danger zone

A hazy day on 10 November

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PM2.5 pollution rose to moderate and high-risk levels in 21 areas of Bangkok and Samut Prakan province yesterday, according to the Pollution Control Department.

The department released readings at 1pm which showed that this hazardous air had passed the "safe" limit of 50 microgrammes per cubic metre (µg/m³) in 18 spots in Bangkok as well as three in Samut Prakan.

The readings ranged between 51 and 72 µg/m³.

The worst-hit area was Samut Sakhon's tambon Mahachai where PM2.5 topped out at 74 µg/m³, followed by Krathum Baen district and Samut Prakan's Muang district.


PM10, another harmful pollutant, also reached 132 µg/m³ in tambon Mahachai, surpassing the safe threshold of 120 µg/m³.

This is the result of the influence of cold air from China, according to the department.

The department director warned this sharp rise in pollutants could have an impact on public health, particularly in the areas of Bangkok and Samut Prakan with the highest readings.

He said the department is doing all it can to mitigate the problem.

The Health Department, he said, has opened an emergency centre to provide air quality warnings as well as provide health care assistance to vulnerable groups, such as children and the elderly, who are most likely to be affected.

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Vocabulary:

hazardous : dangerous, especially to people’s health or safety - ที่เป็นอันตราย

impact (noun): an effect or influence - ผลกระทบ

mitigate : to make something less harmful or serious - บรรเทา

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 -

pollutant (noun): something that causes pollution - สารพิษ, ของเสีย, สิ่งที่ทำให้สกปรก

reading (noun): taking a measurement of something - จำนวนตัวเลขที่อ่านได้จากอุปกรณ์ (เช่นจากปรอทวัดอุณหภูมิ)

vulnerable : easily damaged or harmed - ซึ่งถูกทำลายได้ง่าย

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