Worst air pollution Cheb, today and tomorrow
Today (9 August): Air quality in Cheb is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 43.3/100).
Tomorrow (10 August 2026): Air quality in Cheb is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 7:00 PM (O3: 38.1/100). 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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Positioned on the Ohře river near the German border, Cheb experiences air quality shaped chiefly by vehicle traffic and cross-border commuting. The Karlovy Vary Region terrain plays a role in how pollutants move through the area, with breezier conditions typically dispersing emissions faster than the still, settled spells that let them accumulate.
Today - 9 August | Pollution peaks at 16:00
AQI:
Medium
43.3/100
PM2.5 (fine particles):
Good
7.2/100
PM10 (coarse particles):
Good
2.2/100
NO2 (nitrogen dioxide):
Fair
20.2/100
O3 (ozone):
Medium
43.3/100
SO2 (sulfur dioxide):
Good
6.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.4/100
PM1 (ultrafine particles):
Good
9.0/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 19:00
AQI:
Fair
38.1/100
PM2.5 (fine particles):
Good
10.8/100
PM10 (coarse particles):
Good
4.9/100
NO2 (nitrogen dioxide):
Fair
35.9/100
O3 (ozone):
Fair
38.1/100
SO2 (sulfur dioxide):
Good
6.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.0/100
PM1 (ultrafine particles):
Good
13.3/100
Pollen forecast in Cheb
View pollen forecastFrequently Asked Questions
Is air quality bad in Cheb right now?
On 9 August 2026, overall air quality in Cheb is fair. NO2 is the main pollutant at 20.2/100. Pollution peaks around 4:00 PM (O3: 43.3/100).
Will air quality be worse tomorrow in Cheb?
On 10 August 2026, air quality conditions in Cheb will be similar to today, with AQI forecast at fair at 38.1/100. Pollution peaks around 7:00 PM (O3: 38.1/100).
When is air pollution at its worst in Cheb?
oak and beech pollen peaks and periods of vehicle traffic and cross-border commuting are the two main triggers for reduced air quality in Cheb; most other times, the Karlovy Vary Region area sees comparatively steady, breathable conditions.
Are air quality levels in Cheb 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: 9 August 2026 at 20:27 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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