Staff from the Bangkok Metropolitan Administration offer checkups to people affected by smog on Tuesday. (Photo supplied)
Unsafe smog levels have blanketed Bangkok, with the worst levels in Phra Nakhon district, and 23 other provinces are also plagued with air pollution.
The Pollution Control Department reported that levels of PM2.5 ranged from 55 to 89 microgrammes per cubic metre of air in the capital over the past 24 hours to 9am on Tuesday. The government-set safe threshold is 50mcg.
Unsafe PM2.5 levels were detected in 50 of 52 areas in greater Bangkok. Only Bang Sao Thong district of Samut Prakan, with PM2.5 at 48mcg, and Muang district of Samut Sakhon, 50mcg, were deemed healthy.
In general the air pollution was worse than on Monday, the department said.
The worst PM2.5 level nationwide, 94mcg, was reported in tambon Na Phra Lan of Chalerm Prakiat district in Saraburi, where there are busy rock quarries.
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deemed : considered - เห็นว่า ถือว่า
detect : to notice, to discover or find out - พบได้, สังเกต
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 -
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
quarry (noun): a place where large amounts of stone, etc. are dug out of the ground - เหมืองหิน
threshold : the level or point at which you start to experience something, or at which something starts to happen - จุดเริ่มของประสบการณ์หรือเหตุการณ์ใหม่ๆ