Asmara reports an annual PM2.5 of 24.2 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 Eritrea
Asmara: 24.2 µg/m³. Typical range in Eritrea: 22.3–28.8 µg/m³. Low anchor: Barentu, 20.5 µg/m³. High anchor: Massawa, 46.5 µg/m³.
7 cities tracked