On 18 Jan 2026, Bangkok's dust levels were found to exceed standards, classified in the orange zone across 14 areas. The highest concentration was in Chatuchak, followed by Lat Krabang, with the trend beginning to decline.
On 18 Jan 2026, the Bangkok Air Quality Data Center reported PM2.5 dust particle levels measured at 07:00 a.m. across the city's monitoring stations ranged from 19.8 to 52.3 micrograms per cubic meter (µg/m³). Fourteen areas exceeded the standard limit of 37.5 µg/m³, falling into the orange category indicating health effects.
1. Chatuchak district, in front of Kasetsart University: 52.3 µg/m³.
2. Lat Krabang district, in front of Nakharin Hospital: 47.5 µg/m³.
3. Pathum Wan district, in front of Samyan Mitrtown shopping mall: 42.6 µg/m³.
4. Nong Chok district, in front of Nong Chok District Office: 42.1 µg/m³.
5. Laksi district, inside the Laksi District Office: 41.9 µg/m³.
6. Wang Thonglang district, in front of Bangchak gas station on Lat Phrao 95: 41.4 µg/m³.
7. Sai Mai district, bus stop in front of Sai Mai District Office: 40.3 µg/m³.
8. Khlong Sam Wa district, inside the Khlong Sam Wa District Office: 40.2 µg/m³.
9. Bang Rak district, beside the police booth in front of Bang Rak Lovely Plaza: 39.5 µg/m³.
10. Bang Khen district, inside the Bang Khen District Office: 39.0 µg/m³.
11. Min Buri district, Chalerm Phrakiat R.9 Park opposite Min Buri District Office: 39.0 µg/m³.
12. Phra Nakhon district, inside the Phra Nakhon District Office: 38.7 µg/m³.
13. Prawet district, in front of Seacon Square shopping mall: 38.2 µg/m³.
14. Bang Sue district, inside the Bang Sue District Office: 37.7 µg/m³.
The Meteorological Department forecasts morning fog and some areas with dense fog in Bangkok, with a 10% chance of rain across the region.
Weather conditions affecting PM2.5 levels from 18-21 Jan 2026 indicate weak air ventilation and a relatively closed atmosphere near the surface. Southern Bangkok will experience stronger southerly winds from the Gulf of Thailand, leading to a decrease in dust concentration. From 22-24 Jan, ventilation remains weak with possible rainfall, expected to further reduce dust levels. Today's forecast includes morning fog with some dense patches and a 10% chance of rain.
NASA satellite data monitoring heat spots shows no abnormal heat readings on the Earth's surface within Bangkok, indicating no unusual hotspots detected.