Worst air pollution Regensburg, today and tomorrow

Today (21 July): Air quality in Regensburg is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 28.3/100).
Tomorrow (22 July 2026): Air quality in Regensburg is fair. All pollutants stay as today. Pollution peaks around 5:00 PM (O3: 32.6/100). 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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Regensburg's air quality reflects its position in the Danube valley in eastern Bavaria, with vehicle traffic on the A3 and the surrounding BMW manufacturing and electronics industry contributing elevated NO₂ and PM2.5. Winter temperature inversions in the Danube valley can temporarily concentrate vehicle and heating emissions, while the Bavarian plateau generally allows reasonable dispersal.

Today - 21 July | Pollution peaks at 17:00

AQI:

Fair

28.3/100

PM2.5 (fine particles):

Good

5.2/100

PM10 (coarse particles):

Good

1.8/100

NO2 (nitrogen dioxide):

Good

5.2/100

O3 (ozone):

Fair

28.3/100

SO2 (sulfur dioxide):

Good

0.6/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

1.9/100

PM1 (ultrafine particles):

Good

4.5/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 17:00

AQI:

Fair

32.6/100

PM2.5 (fine particles):

Good

5.6/100

PM10 (coarse particles):

Good

1.9/100

NO2 (nitrogen dioxide):

Good

8.1/100

O3 (ozone):

Fair

32.6/100

SO2 (sulfur dioxide):

Good

0.4/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.5/100

PM1 (ultrafine particles):

Good

5.3/100

Pollen forecast in Regensburg

View pollen forecast

Frequently Asked Questions

Is air quality bad in Regensburg right now?

On 21 July 2026, overall air quality in Regensburg is fair. AQI is the main air quality indicator at 28.3/100. Pollution peaks around 5:00 PM (O3: 28.3/100).

Will air quality be worse tomorrow in Regensburg?

On 22 July 2026, air quality conditions in Regensburg will be similar to today, with AQI forecast at fair at 32.6/100. Pollution peaks around 5:00 PM (O3: 32.6/100).

When is air pollution at its worst in Regensburg?

Air quality dips in Regensburg mostly track spruce, linden, and birch pollen peaks and hot, still days when local emissions build up; traffic on the main roads through town is a modest local source. Ragweed levels rise modestly from mid-August, consistent with much of southern Germany. Mornings and breezier days generally bring the clearest conditions.

Are air quality levels in Regensburg 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: 21 July 2026 at 16:20 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