Worst air pollution Kerpen, today and tomorrow

Today (21 July): Air quality in Kerpen is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 AM (NO2: 37.8/100).
Tomorrow (22 July 2026): Air quality in Kerpen is fair. O3 decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 AM (NO2: 26.0/100). 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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Kerpen's air quality faces challenges from the Hambacher Forst lignite open-cast mine — one of Europe's largest — and the surrounding RWE coal power stations generating elevated SO₂ and PM2.5 alongside traffic on the A4. The flat Rhine-Erft basin provides reasonable dispersal, while the lignite operations' scale makes Kerpen one of Germany's most mining-defined urban areas.

Today - 21 July | Pollution peaks at 02:00

AQI:

Fair

37.8/100

PM2.5 (fine particles):

Good

13.5/100

PM10 (coarse particles):

Good

4.5/100

NO2 (nitrogen dioxide):

Fair

37.8/100

O3 (ozone):

Fair

24.9/100

SO2 (sulfur dioxide):

Good

14.7/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.2/100

PM1 (ultrafine particles):

Good

13.1/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 00:00

AQI:

Fair

26.0/100

PM2.5 (fine particles):

Good

8.6/100

PM10 (coarse particles):

Good

3.1/100

NO2 (nitrogen dioxide):

Fair

26.0/100

O3 (ozone):

Good

20.0/100

SO2 (sulfur dioxide):

Good

5.8/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.8/100

PM1 (ultrafine particles):

Good

7.2/100

Pollen forecast in Kerpen

View pollen forecast

Frequently Asked Questions

Is air quality bad in Kerpen right now?

On 21 July 2026, overall air quality in Kerpen is fair. AQI is the main air quality indicator at 37.8/100. Pollution peaks around 2:00 AM (NO2: 37.8/100).

Will air quality be worse tomorrow in Kerpen?

On 22 July 2026, air quality conditions in Kerpen will be similar to today, with AQI forecast at fair at 26.0/100. Pollution peaks around 12:00 AM (NO2: 26.0/100).

When is air pollution at its worst in Kerpen?

In Kerpen, the days to watch are when linden, ash, and oak pollen peaks, or hot, still days when local emissions build up; day-to-day road traffic here stays a fairly minor, steady source. This part of Germany typically experiences only light ragweed levels overall. Windier afternoons generally bring noticeably clearer air than calm mornings.

Are air quality levels in Kerpen 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