Tutong reports an annual PM2.5 of 10.1 µg/m³. That's roughly double the WHO 2021 guideline but still far below the EU annual limit of 25 µg/m³.
Compared across Brunei
Tutong: 10.1 µg/m³. Typical range in Brunei: 9.5–11.1 µg/m³. Low anchor: Kuala Belait, 9.3 µg/m³. High anchor: Sengkurong, 12.3 µg/m³.
8 cities tracked