Worst air pollution Zhangye, today and tomorrow
Today (17 August): Air quality in Zhangye is poor. AQI and NO2 are poor; PM2.5, PM10, and O3 are fair; SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 75.4/100).
Tomorrow (18 August 2026): Air quality in Zhangye is poor. PM2.5 decreases to good; PM10 decreases to good; O3 decreases to medium; SO2 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 AM (NO2: 76.1/100). 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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Zhangye's air quality reflects the Gansu Hexi Corridor's flat oasis position at 1,474 metres between the Qilian Mountains and the Badain Jaran Desert, with vehicle traffic on surrounding roads and the agricultural, food processing, and tourism corridor contributing local sources. Windblown desert dust from the Badain Jaran generates elevated PM10 during spring dust storms, while the elevated Hexi Corridor position aids summer dispersal and Zhangye generally maintains moderate Gansu northwestern corridor readings throughout most of the year.
Today - 17 August | Pollution peaks at 23:00
AQI:
Poor
75.4/100
PM2.5 (fine particles):
Fair
39.4/100
PM10 (coarse particles):
Fair
29.9/100
NO2 (nitrogen dioxide):
Poor
75.4/100
O3 (ozone):
Fair
37.1/100
SO2 (sulfur dioxide):
Good
19.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Good
18.0/100
Levels show the poorest local air quality during the day
Tomorrow - 18 August | Pollution peaks at 00:00
AQI:
Poor
76.1/100
PM2.5 (fine particles):
Good
17.7/100
PM10 (coarse particles):
Good
13.4/100
NO2 (nitrogen dioxide):
Poor
76.1/100
O3 (ozone):
Medium
41.6/100
SO2 (sulfur dioxide):
Fair
20.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
16.9/100
Frequently Asked Questions
Is air quality bad in Zhangye right now?
On 17 August 2026, overall air quality in Zhangye is poor. AQI is the main air quality indicator at 75.4/100. Pollution peaks around 11:00 PM (NO2: 75.4/100).
Will air quality be worse tomorrow in Zhangye?
On 18 August 2026, air quality conditions in Zhangye will be similar to today, with AQI forecast at poor at 76.1/100. Pollution peaks around 12:00 AM (NO2: 76.1/100).
When is air pollution at its worst in Zhangye?
Zhangye usually sees its poorest air quality when traffic on the surrounding roads, manufacturing and food processing, and agricultural activity coincide with periods when windblown dust events occur. These wind events can carry dust in from the surrounding arid landscape. Such events are most common in the drier shoulder seasons.
Are air quality levels in Zhangye 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: 17 August 2026 at 08:27 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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