On a brisk Friday in Bangkok—December 19—Deputy Governors Jakkapan Piwngam and Tavida Kamolvej took the helm of a committee meeting that could reshape how the city breathes. The topic on the table: rolling out Low Emission Zones (LEZ) across Bangkok to tackle the stubborn winter haze and the tiny, dangerous particles known as PM2.5. What the committee decided (and why it matters) The committee hashed out the guidelines and enforcement playbook for an LEZ program aimed at cutting pollution from heavy vehicles. According to the Bangkok Metropolitan Administration (BMA) Disaster Prevention and Mitigation Division, the plan is ambitious: enforce LEZ measures across 50 districts in fiscal year 2026. The targeted offenders are large vehicles—those with six or more wheels—whose diesel engines are a well-known source of particulate pollution. But the ban won’t kick in at the whim of a politician. The BMA tied restrictions to hard air-quality triggers. If average … Continue reading Bangkok LEZ 2026: Truck Restrictions to Cut PM2.5 Across 50 Districts