What is the air quality in Nanjing?

Nanjing, China has an annual US AQI of 121 (Polluted) and average PM2.5 of 44 µg/m³, ranking #5165 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Nanjing?

September is typically the cleanest month (AQI 89) and January the most polluted (AQI 160).

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
5165	Nanjing, China	Asia	AQI 121	PM2.5 44 µg/m³