February 19, 2025
BANGKOK – The air quality in all 50 districts of Bangkok was in the “green” to “yellow” levels, or good to moderate, on Tuesday morning, the Air Quality Information Centre of the Bangkok Metropolitan Administration (BMA) said.
The centre reported the average PM2.5 levels throughout the city on Tuesday at 24.6 micrograms per cubic metre (µg/m³), under the country’s standard of 37.5 µg/m³ over a three-hour average (5am to 7am).
Yesterday’s reading at the same time was at 34.9 µg/m³.
PM2.5 refers to fine particulate matter with a diameter of 2.5 micrometres or less, which can penetrate deep into the lungs and bloodstream, posing health risks such as respiratory and cardiovascular diseases.
Major sources of PM2.5 include traffic emissions, factories, forest fires, and burning of harvest leftovers.
The five districts that reported the highest levels of PM2.5 are Nong Chok (33.9 µg/m³), Lat Krabang (33 µg/m³), Bangkok Noi (32.5 µg/m³), Beung Kum (31.2 µg/m³), and Khlong Sam Wa (30.5 µg/m³).
Air quality can be checked daily on the AirBKK application, www.airbkk.com, Line Alert, as well as the Facebook page of the BMA’s Environment Department.