Worst air pollution Shiyan, today and tomorrow
Today (16 July): Air quality in Shiyan is poor. AQI and O3 are poor; NO2 and PM1 are fair; PM2.5, PM10, SO2, CO, and HCHO are good. Pollution peaks around 1:00 PM (O3: 66.6/100).
Tomorrow (17 July 2026): Air quality in Shiyan is fair. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 58.5/100). 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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Shiyan's air quality reflects the Hubei northwestern Qinling-Daba Mountain Han River tributary valley at 289 metres, with vehicle traffic on surrounding expressways and the Dongfeng automobile manufacturing — Shiyan being China's automobile city — and military equipment corridor contributing elevated automotive industrial emissions. The surrounding mountain ranges create significant topographic enclosure, while winter inversions in the deeply enclosed mountain valley concentrate automotive manufacturing and heating emissions, making Shiyan China's most distinctively automobile manufacturing-defined mountain valley air quality environment.
Today - 16 July | Pollution peaks at 13:00
AQI:
Poor
66.6/100
PM2.5 (fine particles):
Good
19.3/100
PM10 (coarse particles):
Good
5.2/100
NO2 (nitrogen dioxide):
Fair
33.8/100
O3 (ozone):
Poor
66.6/100
SO2 (sulfur dioxide):
Good
16.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
17.8/100
PM1 (ultrafine particles):
Fair
25.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Medium
58.5/100
PM2.5 (fine particles):
Good
14.4/100
PM10 (coarse particles):
Good
3.8/100
NO2 (nitrogen dioxide):
Fair
37.2/100
O3 (ozone):
Medium
58.5/100
SO2 (sulfur dioxide):
Good
15.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
18.1/100
PM1 (ultrafine particles):
Fair
20.4/100
Frequently Asked Questions
Is air quality bad in Shiyan right now?
On 16 July 2026, overall air quality in Shiyan is poor. AQI is the main air quality indicator at 66.6/100. Pollution peaks around 1:00 PM (O3: 66.6/100).
Will air quality be worse tomorrow in Shiyan?
On 17 July 2026, air quality conditions in Shiyan will be better than today, with NO2 forecast at fair at 37.2/100. Pollution peaks around 4:00 PM (O3: 58.5/100).
When is air pollution at its worst in Shiyan?
The biggest local contributors to pollution in Shiyan are traffic on the surrounding roads, aircraft operations at the local air base, along with manufacturing and food processing, particularly once temperature inversions set in over the valley. The surrounding valley terrain holds pollutants near the surface rather than letting them disperse. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher.
Are air quality levels in Shiyan 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