What is the air quality in Changshu?

Changshu, China has an annual US AQI of 114 (Polluted) and average PM2.5 of 41 µg/m³, ranking #5004 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Changshu?

September is typically the cleanest month (AQI 84) and January the most polluted (AQI 151).

Where does Changshu'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.

Changshu, China — Air Quality & Clean City Guide 2026

Changshu Air Quality Data

Global rank	City	Continent	AQI	PM2.5
5004	Changshu, China	Asia	AQI 114	PM2.5 41 µg/m³