Worst air pollution Herne, today and tomorrow
Today (20 September): Air quality in Herne is fair. AQI and NO2 are fair; PM2.5, PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (NO2: 26.9/100).
Tomorrow (21 September 2026): Air quality in Herne is moderate. AQI worsens to moderate; PM2.5 increases to fair; NO2 increases to moderate; all other pollutants stay as today. Pollution peaks around 11:00 AM (NO2: 41.2/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
Herne's air quality reflects its position at the heart of the Rhine-Ruhr conurbation in the densely industrialised Ruhr-Emscher corridor, with vehicle traffic on the A42 Emschertal motorway generating elevated PM2.5 and industrial background pollutants. The flat Ruhr basin provides reasonable wind dispersal on westerly days, but the surrounding industrial density of the Bottrop-Herne-Gelsenkirchen corridor maintains consistently elevated European pollution levels.
Today - 20 September | Pollution peaks at 12:00
AQI:
Fair
26.9/100
PM2.5 (fine particles):
Good
17.5/100
PM10 (coarse particles):
Good
14.4/100
NO2 (nitrogen dioxide):
Fair
26.9/100
O3 (ozone):
Good
18.1/100
SO2 (sulfur dioxide):
Good
3.6/100
CO (carbon monoxide):
Good
0.8/100
HCHO (formaldehyde):
Good
1.7/100
PM1 (ultrafine particles):
Good
5.8/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 11:00
AQI:
Moderate
41.2/100
PM2.5 (fine particles):
Fair
21.6/100
PM10 (coarse particles):
Good
15.9/100
NO2 (nitrogen dioxide):
Moderate
41.2/100
O3 (ozone):
Good
14.8/100
SO2 (sulfur dioxide):
Good
8.2/100
CO (carbon monoxide):
Good
1.1/100
HCHO (formaldehyde):
Good
2.7/100
PM1 (ultrafine particles):
Good
12.1/100
Pollen forecast in Herne
View pollen forecastFrequently Asked Questions
Is air quality bad in Herne right now?
On 20 September 2026, overall air quality in Herne is fair. AQI is the main air quality indicator at 26.9/100. Pollution peaks around 12:00 PM (NO2: 26.9/100).
Will air quality be worse tomorrow in Herne?
On 21 September 2026, air quality conditions in Herne will be worse than today, with AQI forecast at moderate at 41.2/100. Pollution peaks around 11:00 AM (NO2: 41.2/100).
When is air pollution at its worst in Herne?
The most noticeable dips in Herne's air quality come when oak, ash, and maple pollen peaks, or on still, humid days when emissions linger locally; traffic on the main roads through town is a modest local source. Ragweed levels remain generally low here, typical of central and western Germany. Calm, still days tend to bring the least comfortable conditions overall.
Are air quality levels in Herne 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: 20 September 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
Get the full experience in the Airmine app.