Worst air pollution Ostrów Tumski Cathedral Island - Poznań, today and tomorrow
Today (9 August): Air quality in Ostrów Tumski Cathedral Island is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 36.1/100).
Tomorrow (10 August 2026): Air quality in Ostrów Tumski Cathedral Island is medium. AQI improves to medium; NO2 decreases to good; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 44.4/100). Airmine updates local air quality forecasts four times daily.
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Ostrów Tumski Cathedral Island's air quality reflects its position near the the cradle-of-Poland cathedral island on the Warta River, with visitor traffic and seasonal tourism activity adding to seasonal pressure from vehicle traffic on the surrounding road network. Overall, Ostrów Tumski Cathedral Island's readings sit close to the regional Wielkopolskie average for most of the year.
Today - 9 August | Pollution peaks at 17:00
AQI:
Fair
36.1/100
PM2.5 (fine particles):
Good
16.1/100
PM10 (coarse particles):
Good
5.3/100
NO2 (nitrogen dioxide):
Fair
32.4/100
O3 (ozone):
Fair
36.1/100
SO2 (sulfur dioxide):
Good
6.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.0/100
PM1 (ultrafine particles):
Good
16.1/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 14:00
AQI:
Medium
44.4/100
PM2.5 (fine particles):
Good
16.2/100
PM10 (coarse particles):
Good
10.0/100
NO2 (nitrogen dioxide):
Good
18.6/100
O3 (ozone):
Medium
44.4/100
SO2 (sulfur dioxide):
Good
9.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
14.0/100
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Frequently Asked Questions
Is air quality bad in Ostrów Tumski Cathedral Island right now?
On 9 August 2026, overall air quality in Ostrów Tumski Cathedral Island is fair. AQI is the main air quality indicator at 36.1/100. Pollution peaks around 5:00 PM (O3: 36.1/100).
Will air quality be worse tomorrow in Ostrów Tumski Cathedral Island?
On 10 August 2026, air quality conditions in Ostrów Tumski Cathedral Island will be better than today, with AQI forecast at medium at 44.4/100. Pollution peaks around 2:00 PM (O3: 44.4/100).
When is air pollution at its worst in Ostrów Tumski Cathedral Island?
Reduced air quality in Ostrów Tumski Cathedral Island is most likely when oak and pine pollen peaks or in periods marked by visitor traffic and seasonal tourism activity; 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 Ostrów Tumski Cathedral Island 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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