Worst air pollution Siewierz, today and tomorrow
Today (9 August): Air quality in Siewierz is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 33.8/100).
Tomorrow (10 August 2026): Air quality in Siewierz is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 55.4/100). 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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Siewierz's air quality profile is influenced chiefly by its Czarna Przemsza River location, with farmland north of the Upper Silesian conurbation adding to seasonal pressure from local industrial activity. Overall, Siewierz's readings sit close to the regional Śląskie average for most of the year.
Today - 9 August | Pollution peaks at 16:00
AQI:
Fair
33.8/100
PM2.5 (fine particles):
Good
6.2/100
PM10 (coarse particles):
Good
2.2/100
NO2 (nitrogen dioxide):
Good
1.5/100
O3 (ozone):
Fair
33.8/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
5.8/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 14:00
AQI:
Medium
55.4/100
PM2.5 (fine particles):
Good
7.6/100
PM10 (coarse particles):
Good
2.8/100
NO2 (nitrogen dioxide):
Good
3.1/100
O3 (ozone):
Medium
55.4/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.1/100
PM1 (ultrafine particles):
Good
10.1/100
Pollen forecast in Siewierz
View pollen forecastFrequently Asked Questions
Is air quality bad in Siewierz right now?
On 9 August 2026, overall air quality in Siewierz is fair. AQI is the main air quality indicator at 33.8/100. Pollution peaks around 4:00 PM (O3: 33.8/100).
Will air quality be worse tomorrow in Siewierz?
On 10 August 2026, air quality conditions in Siewierz will be better than today, with AQI forecast at medium at 55.4/100. Pollution peaks around 2:00 PM (O3: 55.4/100).
When is air pollution at its worst in Siewierz?
The most noticeable dips in Siewierz's air quality come when oak and pine pollen peaks or in periods marked by farmland north of the Upper Silesian conurbation; conditions generally ease once the season shifts and rainfall or stronger winds return to clear the air across the wider area.
Are air quality levels in Siewierz 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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