Worst air pollution Tongchuan, today and tomorrow
Today (16 July): Air quality in Tongchuan is very poor. AQI and O3 are very poor; PM2.5 and PM1 are fair; NO2 is medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 5:00 PM (O3: 85.8/100).
Tomorrow (17 July 2026): Air quality in Tongchuan is poor. AQI improves to poor; O3 decreases to poor; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 67.5/100). 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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Tongchuan's air quality reflects the Shaanxi Loess Plateau's Qihe River valley at 709 metres, with vehicle traffic and the coal mining — Tongchuan historically being Shaanxi's coal capital — and manufacturing corridor generating elevated coal dust PM10. Winter coal heating under loess valley inversions compounds mining background and Tongchuan generally maintains moderate to elevated Shaanxi coal corridor readings throughout most of the year.
Today - 16 July | Pollution peaks at 17:00
AQI:
Very poor
85.8/100
PM2.5 (fine particles):
Fair
32.1/100
PM10 (coarse particles):
Good
9.1/100
NO2 (nitrogen dioxide):
Medium
44.3/100
O3 (ozone):
Very poor
85.8/100
SO2 (sulfur dioxide):
Good
12.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.6/100
PM1 (ultrafine particles):
Fair
39.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 17:00
AQI:
Poor
67.5/100
PM2.5 (fine particles):
Fair
25.3/100
PM10 (coarse particles):
Good
8.1/100
NO2 (nitrogen dioxide):
Medium
49.4/100
O3 (ozone):
Poor
67.5/100
SO2 (sulfur dioxide):
Good
15.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.4/100
PM1 (ultrafine particles):
Fair
31.2/100
Frequently Asked Questions
Is air quality bad in Tongchuan right now?
On 16 July 2026, overall air quality in Tongchuan is very poor. AQI is the main air quality indicator at 85.8/100. Pollution peaks around 5:00 PM (O3: 85.8/100).
Will air quality be worse tomorrow in Tongchuan?
On 17 July 2026, air quality conditions in Tongchuan will be better than today, with AQI forecast at poor at 67.5/100. Pollution peaks around 5:00 PM (O3: 67.5/100).
When is air pollution at its worst in Tongchuan?
The biggest local contributors to pollution in Tongchuan are traffic emissions, quarrying activity, and manufacturing activity, particularly once the surrounding valley traps air close to the ground. 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 Tongchuan 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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app