Worst air pollution Kassel, today and tomorrow

Today (21 July): Air quality in Kassel is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (O3: 27.5/100).
Tomorrow (22 July 2026): Air quality in Kassel is fair. NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 2:00 AM (NO2: 23.2/100). Airmine updates local air quality forecasts four times daily.

For long term forecasts and maps, see the Airmine app

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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Kassel's air quality reflects its position in the Fulda valley in central Germany, with vehicle traffic on the A7 motorway contributing elevated NOₓ and PM2.5. The Habichtswald hills to the west and the surrounding Hessian highlands create partial topographic enclosure, while the Fulda valley provides the primary natural ventilation corridor.

Today - 21 July | Pollution peaks at 18:00

AQI:

Fair

27.5/100

PM2.5 (fine particles):

Good

7.1/100

PM10 (coarse particles):

Good

2.5/100

NO2 (nitrogen dioxide):

Good

16.3/100

O3 (ozone):

Fair

27.5/100

SO2 (sulfur dioxide):

Good

1.2/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.3/100

PM1 (ultrafine particles):

Good

6.1/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 02:00

AQI:

Fair

23.2/100

PM2.5 (fine particles):

Good

6.8/100

PM10 (coarse particles):

Good

2.5/100

NO2 (nitrogen dioxide):

Fair

23.2/100

O3 (ozone):

Fair

22.2/100

SO2 (sulfur dioxide):

Good

1.3/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.8/100

PM1 (ultrafine particles):

Good

6.2/100

Pollen forecast in Kassel

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Frequently Asked Questions

Is air quality bad in Kassel right now?

On 21 July 2026, overall air quality in Kassel is fair. AQI is the main air quality indicator at 27.5/100. Pollution peaks around 6:00 PM (O3: 27.5/100).

Will air quality be worse tomorrow in Kassel?

On 22 July 2026, air quality conditions in Kassel will be similar to today, with AQI forecast at fair at 23.2/100. Pollution peaks around 2:00 AM (NO2: 23.2/100).

When is air pollution at its worst in Kassel?

Kassel residents notice reduced air quality mainly when ash, beech, and maple pollen peaks, or on warm, windless days when local pollution accumulates; local and through traffic is a modest source. Ragweed exposure tends to stay low here through most of late summer. Breezy days and periods of rain generally bring the clearest conditions.

Are air quality levels in Kassel 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