What is the air quality in Lanzhou?

Lanzhou, China has an annual US AQI of 118 (Polluted) and average PM2.5 of 42 µg/m³, ranking #5086 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Lanzhou?

September is typically the cleanest month (AQI 87) and December the most polluted (AQI 155).

PM2.5: 1998–2026 (monitors 2014–2026, satellite 1998–2014). Measured by government monitoring stations. Full sources are on the methodology page.

Global rank	City	Continent	AQI	PM2.5
5086	Lanzhou, China	Asia	AQI 118	PM2.5 42 µg/m³