Worst air pollution Siegburg, today and tomorrow
Today (16 July): Air quality in Siegburg is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 50.7/100).
Tomorrow (17 July 2026): Air quality in Siegburg is poor. AQI worsens to poor; O3 increases to poor; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 60.8/100). 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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Siegburg sits within the flat Westphalian plain, where vehicle traffic along the regional road network and surrounding arable farming and small-scale manufacturing contribute the main local air quality sources. Open farmland surroundings generally allow pollutants to disperse readily, while regional westerly winds and the nearby Ruhr conurbation's industrial background are the main influences throughout the year.
Today - 16 July | Pollution peaks at 17:00
AQI:
Medium
50.7/100
PM2.5 (fine particles):
Good
6.8/100
PM10 (coarse particles):
Good
2.1/100
NO2 (nitrogen dioxide):
Good
6.0/100
O3 (ozone):
Medium
50.7/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.5/100
PM1 (ultrafine particles):
Good
8.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Poor
60.8/100
PM2.5 (fine particles):
Good
8.0/100
PM10 (coarse particles):
Good
2.4/100
NO2 (nitrogen dioxide):
Good
8.3/100
O3 (ozone):
Poor
60.8/100
SO2 (sulfur dioxide):
Good
1.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.7/100
PM1 (ultrafine particles):
Good
10.1/100
Pollen forecast in Siegburg
View pollen forecastFrequently Asked Questions
Is air quality bad in Siegburg right now?
On 16 July 2026, overall air quality in Siegburg is medium. AQI is the main air quality indicator at 50.7/100. Pollution peaks around 5:00 PM (O3: 50.7/100).
Will air quality be worse tomorrow in Siegburg?
On 17 July 2026, air quality conditions in Siegburg will be worse than today, with AQI forecast at poor at 60.8/100. Pollution peaks around 4:00 PM (O3: 60.8/100).
When is air pollution at its worst in Siegburg?
Reduced air quality in Siegburg is most likely when oak, beech, and birch pollen peaks, or on still, humid days when emissions linger locally; everyday driving through the area contributes a modest amount. This region typically sees only a light ragweed presence in late summer. A shift to windier weather typically brings noticeable relief here.
Are air quality levels in Siegburg 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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app