Worst air pollution Kladno, today and tomorrow
Today (9 August): Air quality in Kladno is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 44.0/100).
Tomorrow (10 August 2026): Air quality in Kladno is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 10:00 AM (O3: 37.0/100). 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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Kladno's air quality faces significant challenges from the legacy of the Poldi steelworks and the surrounding Central Bohemian industrial corridor, with vehicle traffic on the R7 expressway and the industrial legacy generating elevated PM2.5 alongside winter residential coal burning. The flat Central Bohemian upland generally provides reasonable dispersal on most days, while the proximity to the Prague metropolitan basin's regional pollution background influences the broader air quality environment throughout the year.
Today - 9 August | Pollution peaks at 15:00
AQI:
Medium
44.0/100
PM2.5 (fine particles):
Good
11.0/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Fair
22.8/100
O3 (ozone):
Medium
44.0/100
SO2 (sulfur dioxide):
Good
3.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.9/100
PM1 (ultrafine particles):
Good
14.9/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 10:00
AQI:
Fair
37.0/100
PM2.5 (fine particles):
Good
10.3/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Fair
21.3/100
O3 (ozone):
Fair
37.0/100
SO2 (sulfur dioxide):
Good
3.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.5/100
PM1 (ultrafine particles):
Good
13.9/100
Pollen forecast in Kladno
View pollen forecastFrequently Asked Questions
Is air quality bad in Kladno right now?
On 9 August 2026, overall air quality in Kladno is fair. NO2 is the main pollutant at 22.8/100. Pollution peaks around 3:00 PM (O3: 44.0/100).
Will air quality be worse tomorrow in Kladno?
On 10 August 2026, air quality conditions in Kladno will be similar to today, with AQI forecast at fair at 37.0/100. Pollution peaks around 10:00 AM (O3: 37.0/100).
When is air pollution at its worst in Kladno?
You're quickest to notice worse air in Kladno when local combined tree and grass pollen peaks, or due to vehicle traffic on the R7 expressway and the industrial legacy; things typically settle down again once the weather pattern shifts.
Are air quality levels in Kladno 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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