Worst air pollution Gelsenkirchen, today and tomorrow

Today (21 July): Air quality in Gelsenkirchen 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: 27.5/100).
Tomorrow (22 July 2026): Air quality in Gelsenkirchen is good. AQI improves to good; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 19.9/100). 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

Use our Strava plugin to check your own exposure.

Gelsenkirchen's air quality reflects its position at the heart of the Rhine-Ruhr conurbation's former coal mining core, with the legacy of coal generating elevated NO₂ and PM2.5. The flat Ruhr basin provides reasonable dispersal on westerly days, but surrounding industrial density keeps pollution above-average for Europe, making Gelsenkirchen one of the Ruhr's more challenging municipalities.

Today - 21 July | Pollution peaks at 17:00

AQI:

Fair

27.5/100

PM2.5 (fine particles):

Good

7.0/100

PM10 (coarse particles):

Good

2.8/100

NO2 (nitrogen dioxide):

Good

11.7/100

O3 (ozone):

Fair

27.5/100

SO2 (sulfur dioxide):

Good

2.4/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.3/100

PM1 (ultrafine particles):

Good

4.7/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 14:00

AQI:

Good

19.9/100

PM2.5 (fine particles):

Good

7.0/100

PM10 (coarse particles):

Good

2.5/100

NO2 (nitrogen dioxide):

Good

14.9/100

O3 (ozone):

Good

19.9/100

SO2 (sulfur dioxide):

Good

5.8/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.0/100

PM1 (ultrafine particles):

Good

5.8/100

Pollen forecast in Gelsenkirchen

View pollen forecast

Frequently Asked Questions

Is air quality bad in Gelsenkirchen right now?

On 21 July 2026, overall air quality in Gelsenkirchen is fair. AQI is the main air quality indicator at 27.5/100. Pollution peaks around 5:00 PM (O3: 27.5/100).

Will air quality be worse tomorrow in Gelsenkirchen?

On 22 July 2026, air quality conditions in Gelsenkirchen will be better than today, with AQI forecast at good at 19.9/100. Pollution peaks around 2:00 PM (O3: 19.9/100).

When is air pollution at its worst in Gelsenkirchen?

Reduced air quality in Gelsenkirchen is most likely when oak, maple, and plane pollen peaks, or on windless summer days when pollutants accumulate nearby; nearby road traffic adds a modest, steady local contribution. Ragweed exposure stays modest in this part of Germany through late summer. Wind and rain both help clear the air noticeably here.

Are air quality levels in Gelsenkirchen 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.

Want to see air quality forecasts for other cities in Germany?

Check air quality in other popular cities:

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