Worst air pollution Weinan, today and tomorrow
Today (16 July): Air quality in Weinan is poor. AQI and O3 are poor; PM2.5 and PM1 are fair; NO2 is medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 1:00 PM (O3: 67.0/100).
Tomorrow (17 July 2026): Air quality in Weinan is poor. All pollutants stay as today. Pollution peaks around 5:00 PM (O3: 62.2/100). 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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Weinan's air quality reflects the Guanzhong Basin's eastern Wei River valley at the Qinling Mountain base, with vehicle traffic on surrounding expressways and the coal mining, chemical, and agricultural corridor contributing local sources. The Guanzhong Basin's topographic enclosure creates concentration under winter inversions, while the Xi'an metropolitan regional background influences the broader corridor and Weinan generally maintains moderate to elevated Guanzhong Basin eastern corridor readings throughout the year.
Today - 16 July | Pollution peaks at 13:00
AQI:
Poor
67.0/100
PM2.5 (fine particles):
Fair
23.1/100
PM10 (coarse particles):
Good
6.4/100
NO2 (nitrogen dioxide):
Medium
58.7/100
O3 (ozone):
Poor
67.0/100
SO2 (sulfur dioxide):
Good
11.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.6/100
PM1 (ultrafine particles):
Fair
29.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 17:00
AQI:
Poor
62.2/100
PM2.5 (fine particles):
Fair
29.7/100
PM10 (coarse particles):
Good
9.9/100
NO2 (nitrogen dioxide):
Medium
55.3/100
O3 (ozone):
Poor
62.2/100
SO2 (sulfur dioxide):
Good
13.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.0/100
PM1 (ultrafine particles):
Fair
36.0/100
Frequently Asked Questions
Is air quality bad in Weinan right now?
On 16 July 2026, overall air quality in Weinan is poor. AQI is the main air quality indicator at 67.0/100. Pollution peaks around 1:00 PM (O3: 67.0/100).
Will air quality be worse tomorrow in Weinan?
On 17 July 2026, air quality conditions in Weinan will be similar to today, with AQI forecast at poor at 62.2/100. Pollution peaks around 5:00 PM (O3: 62.2/100).
When is air pollution at its worst in Weinan?
Air quality in Weinan tends to be worse when road traffic, petrochemical and refining operations, as well as mining and quarrying operations build up and temperature inversions set in over the valley. The bowl-like terrain here limits how quickly pollutants can escape. Fuel burned for winter heating adds an extra layer of particulates on top of other sources.
Are air quality levels in Weinan 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