Worst air pollution Krnov, today and tomorrow
Today (9 August): Air quality in Krnov is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 43.0/100).
Tomorrow (10 August 2026): Air quality in Krnov is fair. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 45.6/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
Krnov, in the Ostrava region foothills near the Polish border, sees former industrial legacy emissions and vehicle traffic as its principal air quality driver. The Moravian-Silesian Region terrain shapes local dispersion, and while breezy, unsettled weather usually brings swift improvement, prolonged calm periods can let pollutant levels climb noticeably.
Today - 9 August | Pollution peaks at 17:00
AQI:
Medium
43.0/100
PM2.5 (fine particles):
Good
11.7/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Fair
32.1/100
O3 (ozone):
Medium
43.0/100
SO2 (sulfur dioxide):
Good
9.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.7/100
PM1 (ultrafine particles):
Good
14.0/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 13:00
AQI:
Medium
45.6/100
PM2.5 (fine particles):
Good
11.5/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Fair
29.5/100
O3 (ozone):
Medium
45.6/100
SO2 (sulfur dioxide):
Good
5.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.1/100
PM1 (ultrafine particles):
Good
15.0/100
Pollen forecast in Krnov
View pollen forecastFrequently Asked Questions
Is air quality bad in Krnov right now?
On 9 August 2026, overall air quality in Krnov is fair. NO2 is the main pollutant at 32.1/100. Pollution peaks around 5:00 PM (O3: 43.0/100).
Will air quality be worse tomorrow in Krnov?
On 10 August 2026, air quality conditions in Krnov will be similar to today, with NO2 forecast at fair at 29.5/100. Pollution peaks around 1:00 PM (O3: 45.6/100).
When is air pollution at its worst in Krnov?
Watch for reduced air quality in Krnov around birch and beech pollen peaks and during former industrial legacy emissions and vehicle traffic; conditions elsewhere in the Moravian-Silesian Region calendar are usually noticeably better, especially once the weather turns more active.
Are air quality levels in Krnov 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.
Want to see air quality forecasts for other cities in Czechia?
Check air quality in other popular cities:
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.
Get the full experience in the Airmine app.