Worst air pollution Kielce, today and tomorrow
Today (9 August): Air quality in Kielce is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 30.0/100).
Tomorrow (10 August 2026): Air quality in Kielce is fair. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 55.2/100). Airmine updates local air quality forecasts four times daily.
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Kielce's air quality reflects its position in the Świętokrzyskie Mountains highlands of central Poland, with residential coal and wood burning generating elevated PM2.5 alongside vehicle traffic on the S7 expressway. The surrounding Świętokrzyskie ridgelines create more complex topographic ventilation than the flat Polish plain, while the region's limestone quarrying and cement manufacturing industry contributes elevated PM10, and Kielce's coal heating dependency creates the seasonal PM2.5 challenge typical of Polish cities during the winter heating season.
Today - 9 August | Pollution peaks at 16:00
AQI:
Fair
30.0/100
PM2.5 (fine particles):
Good
12.3/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Fair
28.3/100
O3 (ozone):
Fair
30.0/100
SO2 (sulfur dioxide):
Good
10.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.8/100
PM1 (ultrafine particles):
Good
11.8/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 16:00
AQI:
Medium
55.2/100
PM2.5 (fine particles):
Good
12.4/100
PM10 (coarse particles):
Good
3.9/100
NO2 (nitrogen dioxide):
Fair
33.9/100
O3 (ozone):
Medium
55.2/100
SO2 (sulfur dioxide):
Good
12.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.9/100
PM1 (ultrafine particles):
Good
15.6/100
Pollen forecast in Kielce
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Kielce
Frequently Asked Questions
Is air quality bad in Kielce right now?
On 9 August 2026, overall air quality in Kielce is fair. AQI is the main air quality indicator at 30.0/100. Pollution peaks around 4:00 PM (O3: 30.0/100).
Will air quality be worse tomorrow in Kielce?
On 10 August 2026, air quality conditions in Kielce will be similar to today, with NO2 forecast at fair at 33.9/100. Pollution peaks around 4:00 PM (O3: 55.2/100).
When is air pollution at its worst in Kielce?
Residents in Kielce are quickest to notice reduced air quality when oak and pine pollen peaks, or due to residential coal and wood burning; the picture usually improves again once the season turns. Local monitoring stations typically pick up the clearest signal during these peak periods.
Are air quality levels in Kielce 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: 10 August 2026 at 02:34 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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