Bangkok air pollution rises sharplyAir pollution in Bangkok surged overnight, with PM2.5 readings above Thailand’s safety threshold in 57 monitoring areas on Friday morning, as shifting winds, a large grass fire and stagnant nighttime conditions pushed fine-dust levels higher. The Bangkok Metropolitan Administration (BMA) Air Quality Information Centre said the city’s average PM2.5 concentration at 7am on Friday was 43.7 microgrammes per cubic metre (µg/m³), exceeding the national guideline of 37.5. The worst readings were logged in Bang Na (109.3), Thung Khru (109), Phra Khanong (107.2), Prawet (107) and Yan Nawa (106.7). The governor added that the city is coordinating with neighbouring provinces to curb open burning and that PM2.5 levels are likely to ease later this month as southerly winds become established. Residents can monitor real-time air quality on the BMA and Gistda platforms and are advised to keep windows closed during high readings, run indoor air purifiers where possible, and avoid strenuous outdoor exercise during peak hours.

Source: Bangkok Post March 13, 2026 23:28 UTC