30 Jan. 2023 – The Bangkok Air Quality Information Center would like to summarize the results of PM2.5 measurements on 30 January 2023 at 5:00 a.m.-7:00 a.m. (last 3 hours). Measured 24 – 46 micrograms (MQ). / cubic meter (cu.m.), the average of Bangkok 34.1 mcg/cu.m.
The PM2.5 value tends to increase and is within the standard at every station that is being monitored.
However, at 7:00 a.m., PM2.5 particulate matter was measured at 24 – 46 micrograms per cubic meter (mcg/m3) (standard value not exceeding 50 micrograms/m3) by tends to increase compared to yesterday in the same period And it was found that it was within the standard in every area that was measured.
related factors (Predict weather trends that affect PM2.5 dust by meteorological conditions)
It is expected that the ventilation rate during 30 Jan. – 1 Feb. ’23 will not be good due to the low air ceiling. Continuously closed weather conditions In addition, from 2 to 4 February 2023, a high pressure area or strong cold air mass from China covers Thailand. Resulting in the accumulation of PM2.5 dust tends to decrease to slightly increase alternately during this period. In addition, the high pressure air from China will come off the coast, causing the cold wind direction to shift from the northeast to the east. As a result, smoke from Cambodia will begin to flow into Thailand, especially in the eastern, central and Bangkok regions. which is a normal phenomenon of the transition to summer The south wind will intensify more and more. And today, Bangkok and its vicinity are cool with strong winds.
During 1 – 5 February 2023, Bangkok and its vicinity should watch out for the accumulation of dust. Due to the still and closed weather, the areas that should be watched are Central Bangkok, North Krung Thon and Southern Krung Thon (Tai Lom area).
From examining data on hot spots (hotspot) via satellite from NASA, found a hot spot that the satellite detected abnormally high heat values from the heat on the Earth’s surface in the area of Bangkok on January 29, 2023, amounting to 1 point. Lat Krabang area
Notify and publicize the public to check air quality information before leaving home via
– AirBKK application
-FB: Bureau of the Environment Bangkok
-FB: Air Quality and Noise Management Division environment bureau
for the public to plan their work Doing activities, especially in areas where air quality levels are starting to have a health impact/affect health effects. should shorten the time or refrain from doing outdoor activities
In the event that the public sees a source of pollution, they can report clues via Traffy Fondue.