Ambalangoda reports an annual PM2.5 of 16.6 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Compared across Sri Lanka
Ambalangoda: 16.6 µg/m³. Typical range in Sri Lanka: 16.6–18.2 µg/m³. Low anchor: Galle, 15.4 µg/m³. High anchor: Colombo, 22.0 µg/m³.
28 cities tracked