Air quality in all 50 districts of Bangkok worsened on Friday morning, with levels ranging from “yellow” to “orange” – meaning moderate to unhealthy for certain groups, according to the Air Quality Information Centre of the Bangkok Metropolitan Administration (BMA).
The average PM2.5 level in the city was recorded at 35.5 micrograms per cubic meter (µg/m³), slightly below the country’s air quality standard of 37.5 µg/m³ over a three-hour period from 5 a.m. to 7 a.m. This is an increase from Thursday’s reading of 22.9 µg/m³ at the same time.
PM2.5 refers to tiny particles, less than 2.5 micrometers in diameter, that can enter the lungs and bloodstream. These fine particles are linked to serious health issues, including respiratory and cardiovascular diseases.
The primary sources of PM2.5 include vehicle emissions, industrial activity, forest fires, and the burning of agricultural waste.
Nong Khaem, Bang Na, and Bang Khun Thian districts reported the highest PM2.5 levels on Friday, with readings of 50.5 µg/m³, 49.9 µg/m³, and 48.3 µg/m³, respectively. Other districts with elevated levels included Wang Thonglang (42.4 µg/m³) and Khlong Sam Wa (41.9 µg/m³).
In response to the pollution, the BMA has recommended that residents wear facemasks, limit outdoor activities, and work from home if possible. People experiencing symptoms such as coughing, eye irritation, or difficulty breathing should seek medical attention.
Residents can monitor air quality updates daily through the AirBKK app, Line Alert, or the BMA’s Environment Department Facebook page.
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