Check today's air quality on 4 Feb 2026 in Bangkok: PM 2.5 levels do not exceed standards in any area, mostly at good air quality levels. A rain chance is forecast for 8-9 Feb 2026 due to expected showers.
On 4 Feb 2026, the Bangkok Air Quality Information Center reported the PM 2.5 particulate matter situation from Bangkok's air quality monitoring stations at 07:00 hrs, showing the 24-hour average PM 2.5 concentration.
Measurements ranged from 15.6 to 33.6 micrograms per cubic meter (µg/m³), all within the standard limit of 37.5 µg/m³. The air quality index from Bangkok's monitoring stations was mostly at good levels. The Meteorological Department forecasted partly cloudy skies over Bangkok.
Related factors (forecasted meteorological conditions affecting PM 2.5 levels).
From 4-5 Feb 2026, ventilation is classified as "poor/weak" with a closed atmospheric layer near the surface, causing dust accumulation. From 6-12 Feb, ventilation is "good/weak" with a relatively open surface layer and stronger winds. Rain is expected on 8-9 Feb, so dust accumulation is forecast to decrease. Today is expected to be partly cloudy.
Satellite hotspot data from NASA showed abnormally high surface temperatures indicating hotspots in Bangkok. On 3 Feb 2026, four hotspots were detected as follows:
Hotspots 1-4 were detected between 13:12 and 14:01 hrs in Lat Krabang subdistrict, Lat Krabang district, caused by grass fires that have since been extinguished.
The Environment Office has coordinated with all relevant agencies to intensify actions under the particulate matter problem mitigation plan to reduce the severity of PM 2.5 pollution and its health impacts on the public. They also encourage community and sector participation.
They ask the public to change behaviors and reduce dust-generating activities to minimize health impacts, promoting "5 Ways to Reduce Dust You Can Do": 1. Regularly clean your home by wiping dust, 2. Avoid burning waste or incense, 3. Plant trees to absorb pollution and trap dust, 4. Use public transport, and 5. Turn off engines when parked and maintain engines to prevent excessive black smoke.
They also advise the public to check air quality information before going outside through:
In addition, if the public spots pollution sources, they can report clues via Traffy Fondue.
Information provided by the Environment Office, Bangkok Metropolitan Administration.