What is the air quality in Kunshan?

Kunshan, China has an annual US AQI of 112 (Polluted) and average PM2.5 of 39.7 µg/m³, ranking #4969 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Kunshan?

September is typically the cleanest month (AQI 84) and January the most polluted (AQI 147).

Where does Kunshan's air quality data come from?

PM2.5: 1998–2024 (monitors 2014–2021, satellite 1998–2014, 2022–2024). Measured by government monitoring stations. Full sources are on the methodology page.

Kunshan, China — Air Quality & Clean City Guide 2026

Kunshan Air Quality Data

Global rank	City	Continent	AQI	PM2.5
4969	Kunshan, China	Asia	AQI 112	PM2.5 39.7 µg/m³