Authorities in Bangkok have installed water sprayers on several bridges across the city in an effort to reduce airborne dust, particularly fine particulate matter (PM2.5), a senior official announced on January 30, 2025. The initiative aims to mitigate worsening air quality that has reached levels deemed unhealthy for sensitive groups.
The Rural Roads Department has placed water sprayers on the Rama 5, Rama 7, Pinklao, Krung Thon, and Bhumibol bridges to help control dust levels. Additionally, construction contractors have been instructed to spray water on roads and trucks leaving work sites to limit dust dispersion.
On the same day, air quality data showed that 14 districts in Bangkok had PM2.5 levels exceeding the 37.5 µg/m³ safety threshold, placing them in the Orange category, which indicates a risk to sensitive populations. The city’s average PM2.5 level was recorded at 35.3 µg/m³, with some areas experiencing significantly higher concentrations.
The highest pollution levels were reported in Khlong Sam Wa (46 µg/m³), followed by Lat Krabang (43.9 µg/m³) and Bang Khun Thian (43.4 µg/m³). Other affected districts included Phasi Charoen, Phra Khanong, and Lak Si, all registering readings above 38 µg/m³.
Officials, including Rural Roads Department chief Montri Dechasakulsom, have emphasized ongoing efforts to address air pollution and minimize its impact on residents.
