Worst air pollution Guozhen, today and tomorrow
Today (16 July): Air quality in Guozhen 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 2:00 PM (O3: 82.2/100).
Tomorrow (17 July 2026): Air quality in Guozhen is poor. AQI improves to poor; PM2.5 decreases to good; O3 decreases to poor; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 67.8/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Guozhen's air quality reflects the Guanzhong Basin's Wei River valley in Shaanxi, with vehicle traffic on surrounding roads and agricultural and light manufacturing operations contributing local sources. The Guanzhong Basin's topographic enclosure creates concentration under winter inversions, while the Xi'an metropolitan regional background influences the broader western Guanzhong corridor throughout most of the year.
Today - 16 July | Pollution peaks at 14:00
AQI:
Very poor
82.2/100
PM2.5 (fine particles):
Fair
31.3/100
PM10 (coarse particles):
Good
9.2/100
NO2 (nitrogen dioxide):
Medium
53.3/100
O3 (ozone):
Very poor
82.2/100
SO2 (sulfur dioxide):
Good
9.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.1/100
PM1 (ultrafine particles):
Fair
37.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Poor
67.8/100
PM2.5 (fine particles):
Good
19.8/100
PM10 (coarse particles):
Good
7.2/100
NO2 (nitrogen dioxide):
Medium
52.9/100
O3 (ozone):
Poor
67.8/100
SO2 (sulfur dioxide):
Good
10.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
17.6/100
PM1 (ultrafine particles):
Fair
24.0/100
Frequently Asked Questions
Is air quality bad in Guozhen right now?
On 16 July 2026, overall air quality in Guozhen is very poor. AQI is the main air quality indicator at 82.2/100. Pollution peaks around 2:00 PM (O3: 82.2/100).
Will air quality be worse tomorrow in Guozhen?
On 17 July 2026, air quality conditions in Guozhen will be better than today, with AQI forecast at poor at 67.8/100. Pollution peaks around 1:00 PM (O3: 67.8/100).
When is air pollution at its worst in Guozhen?
In Guozhen, road traffic, textile and manufacturing operations, along with farming and agricultural processing are the main local sources, with conditions worsening when temperature inversions set in over the valley. The surrounding valley terrain holds pollutants near the surface rather than letting them disperse. This is most pronounced in winter, when inversions are more frequent.
Are air quality levels in Guozhen 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