Tuesday, January 21, 2020

Improvement seen in Bangkok air quality

Jan 14. 2020
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By The Nation

The air quality in Bangkok is getting better while it remains unsafe in parts of the North, according to a report by the Pollution Control Department. 

The level of particulate matter less than 2.5 micrograms in diameter (PM2.5) per cubic metre in the air in Bangkok and surrounding areas averaged 27-57 micrograms per cubic metre on Tuesday (January 14).

The air quality standard guideline of Thailand’s Pollution Control Department stipulates that PM2.5 should not exceed 50mcg per cubic metre. The World Health Organisation prescribes that particulate matter should not exceed 25mcg per cubic metre in a 24-hour mean.

Seven areas in the capital have PM2.5 dust particle levels slightly above the safety standard of 50mcg per cubic metre. They are: Bang Khen, Phra Nakhon, Wang Thonglang, Bang Kho Laem, Khlong Toei, Khlong San, and Lak Si.

Meanwhile, in the northern region, PM2.5 averaged 26-90mcg per cubic metre, exceeding the 50mcg per cubic metre air quality standard in eight areas: Mae Sot district in Tak province, Muang district in Phayao province, Mae Moh and Muang districts in Lampang province, Muang district in Lamphun province, Mae Sai district in Chiang Rai province, Muang district in Chiang Mai province, and Muang district in Phrae province.

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