Highest air pollution Marl, today and tomorrow
Today (30 June): Air quality in Marl 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: 36.8/100).
Tomorrow (1 July 2026): Air quality in Marl is fair. All pollutants stay as today. Pollution peaks around 6:00 PM (O3: 33.8/100). 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
Marl's air quality reflects the Rhine-Ruhr conurbation's northern industrial zone, with the Chemiepark Marl — one of Germany's largest chemical production sites — generating elevated industrial VOCs, NOₓ, and PM2.5 alongside vehicle traffic on the A43. The flat Ruhr basin provides some wind dispersal, while the chemical park's extraordinary scale makes Marl Germany's most distinctively chemical industry-defined urban air quality environment.
Today - 30 June | Pollution peaks at 17:00
AQI:
Fair
36.8/100
PM2.5 (fine particles):
Good
8.5/100
PM10 (coarse particles):
Good
3.0/100
NO2 (nitrogen dioxide):
Good
11.1/100
O3 (ozone):
Fair
36.8/100
SO2 (sulfur dioxide):
Good
4.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.1/100
PM1 (ultrafine particles):
Good
7.1/100
Levels show the poorest local air quality during the day
Tomorrow - 1 July | Pollution peaks at 18:00
AQI:
Fair
33.8/100
PM2.5 (fine particles):
Good
8.6/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
16.3/100
O3 (ozone):
Fair
33.8/100
SO2 (sulfur dioxide):
Good
4.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.2/100
PM1 (ultrafine particles):
Good
8.2/100
Pollen forecast in Marl
View pollen forecastFrequently Asked Questions
Is air quality bad in Marl right now?
On 30 June 2026, overall air quality in Marl is fair. AQI is the main air quality indicator at 36.8/100. Pollution peaks around 5:00 PM (O3: 36.8/100).
Will air quality be worse tomorrow in Marl?
On 1 July 2026, air quality conditions in Marl will be similar to today, with AQI forecast at fair at 33.8/100. Pollution peaks around 6:00 PM (O3: 33.8/100).
Are air quality levels in Marl 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.
Want to see air quality forecasts for other cities in Germany?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 30 June 2026 at 13:03 CET (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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team