Arvayheer reports an annual PM2.5 of 12.2 µg/m³. That's roughly double the WHO 2021 guideline but still far below the EU annual limit of 25 µg/m³.
Compared across Mongolia
Arvayheer: 12.2 µg/m³. Typical range in Mongolia: 10.3–12.6 µg/m³. Low anchor: Ulaangom, 9.2 µg/m³. High anchor: Ulan Bator, 67.8 µg/m³.
22 cities tracked