By The Nation
PM2.5 refers to particulate matter that is less than 2.5 micrometres in diameter. Thailand’s safe threshold for PM2.5 is 50 mcg per cubic metre of air, while the World Health Organisation has set it at 25mcg per cubic metre.
According to the report of Air Quality Monitoring Station, the average value of PM 2.5 dust particle in the last 24 hours was 37-64 micrograms per cubic metre.
The value exceeded the standard in 10 Bangkok districts, namely Wang Thonglang, Pathum Wan, Sathon, Bang Kho Laem, Khlong San, Phasi Charoen, Bang Sue, Lak Si, Bang Khen, and Bang Phlat.
The air quality index of the Air Quality Monitoring Station gave air quality level at medium quality to beginning to affect health.
The department warned people to monitor their health. Anyone suffering such symptoms as coughing, difficulty breathing or eye irritation should reduce the duration of outdoor activities or use protective masks.