Worst air pollution Nanjing, today and tomorrow
Today (10 August): Air quality in Nanjing is medium. AQI and NO2 are medium; PM2.5, PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (NO2: 47.7/100).
Tomorrow (11 August 2026): Air quality in Nanjing is fair. O3 increases to medium; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 55.1/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Nanjing's air quality reflects the Yangtze River valley's flat alluvial plain in Jiangsu, with vehicle traffic on surrounding expressways and the petrochemical, steel, and electronics manufacturing corridor contributing elevated industrial PM2.5. East China Sea and Yangtze delta breezes provide limited maritime ventilation, while winter anticyclonic inversions concentrate industrial and heating emissions and Nanjing generally maintains moderate to elevated Yangtze Delta provincial capital readings throughout the year.
Today - 10 August | Pollution peaks at 19:00
AQI:
Medium
47.7/100
PM2.5 (fine particles):
Good
6.4/100
PM10 (coarse particles):
Good
1.8/100
NO2 (nitrogen dioxide):
Medium
47.7/100
O3 (ozone):
Good
13.3/100
SO2 (sulfur dioxide):
Good
11.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
9.0/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 23:00
AQI:
Medium
55.1/100
PM2.5 (fine particles):
Good
14.6/100
PM10 (coarse particles):
Good
3.9/100
NO2 (nitrogen dioxide):
Medium
55.1/100
O3 (ozone):
Medium
47.7/100
SO2 (sulfur dioxide):
Good
15.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.4/100
PM1 (ultrafine particles):
Fair
20.7/100
Frequently Asked Questions
Is air quality bad in Nanjing right now?
On 10 August 2026, overall air quality in Nanjing is medium. AQI is the main air quality indicator at 47.7/100. Pollution peaks around 7:00 PM (NO2: 47.7/100).
Will air quality be worse tomorrow in Nanjing?
On 11 August 2026, air quality conditions in Nanjing will be worse than today, with PM1 forecast at fair at 20.7/100. Pollution peaks around 11:00 PM (NO2: 55.1/100).
When is air pollution at its worst in Nanjing?
Pollution in Nanjing typically rises when road traffic, heavy industry such as steel, cement, or petrochemical processing, as well as light manufacturing combine, especially once calm, stagnant conditions settle in the surrounding valley. The surrounding valley terrain holds pollutants near the surface rather than letting them disperse. Dust carried on these winds adds substantially to particulate levels.
Are air quality levels in Nanjing based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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