What is the air quality in Ulaanbaatar?

Ulaanbaatar, Mongolia has an annual US AQI of 116 (Polluted) and average PM2.5 of 54.2 µg/m³, ranking #5052 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Ulaanbaatar?

August is typically the cleanest month (AQI 60) and December the most polluted (AQI 210).

Where does Ulaanbaatar's air quality data come from?

PM2.5: 1998–2025 (monitors 2015–2025, satellite 1998–2015, 2017, 2022–2023; 2025 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Ulaanbaatar, Mongolia — Air Quality & Clean City Guide 2026

Ulaanbaatar Air Quality Data

Global rank	City	Continent	AQI	PM2.5
5052	Ulaanbaatar, Mongolia	Asia	AQI 116	PM2.5 54.2 µg/m³