Ban Houakhoua reports an annual PM2.5 of 30.5 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Compared across Laos
Ban Houakhoua: 30.5 µg/m³. Typical range in Laos: 24.8–30.5 µg/m³. Low anchor: Xam Nua, 22.4 µg/m³. High anchor: Vientiane, 30.9 µg/m³.
11 cities tracked