Worst air pollution Nijmegen, today and tomorrow
Today (20 September): Air quality in Nijmegen is fair. AQI and NO2 are fair; PM2.5, PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (NO2: 24.7/100).
Tomorrow (21 September 2026): Air quality in Nijmegen is moderate. AQI worsens to moderate; NO2 increases to moderate; all other pollutants stay as today. Pollution peaks around 11:00 AM (NO2: 43.7/100). Airmine updates local air quality forecasts four times daily.
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Nijmegen's air quality reflects its position in the Gelderse Poort floodplain at the Netherlands-Germany border, with the Rhine and Waal river confluence providing natural ventilation and the surrounding logistics and manufacturing industry contributing local sources. The flat Dutch river delta terrain generally allows reasonable dispersal on most days, while the broader Rhine-Ruhr industrial corridor's background pollution elevates baseline PM2.5 and NO₂ above typical Dutch rural values, and prevailing westerlies carry relatively clean North Sea air into the Nijmegen area.
Today - 20 September | Pollution peaks at 10:00
AQI:
Fair
24.7/100
PM2.5 (fine particles):
Good
16.2/100
PM10 (coarse particles):
Good
17.4/100
NO2 (nitrogen dioxide):
Fair
24.7/100
O3 (ozone):
Good
16.6/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.7/100
HCHO (formaldehyde):
Good
1.6/100
PM1 (ultrafine particles):
Good
2.9/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 11:00
AQI:
Moderate
43.7/100
PM2.5 (fine particles):
Good
15.3/100
PM10 (coarse particles):
Good
14.9/100
NO2 (nitrogen dioxide):
Moderate
43.7/100
O3 (ozone):
Good
14.7/100
SO2 (sulfur dioxide):
Good
1.8/100
CO (carbon monoxide):
Good
0.9/100
HCHO (formaldehyde):
Good
2.0/100
PM1 (ultrafine particles):
Good
5.5/100
Pollen forecast in Nijmegen
View pollen forecastFrequently Asked Questions
Is air quality bad in Nijmegen right now?
On 20 September 2026, overall air quality in Nijmegen is fair. AQI is the main air quality indicator at 24.7/100. Pollution peaks around 10:00 AM (NO2: 24.7/100).
Will air quality be worse tomorrow in Nijmegen?
On 21 September 2026, air quality conditions in Nijmegen will be worse than today, with AQI forecast at moderate at 43.7/100. Pollution peaks around 11:00 AM (NO2: 43.7/100).
When is air pollution at its worst in Nijmegen?
The clearest air quality impact for Nijmegen tends to come in spring and early summer, during the birch, oak, and pine pollen peak, or on still, warm days when traffic and industry emissions pile up; the surrounding river valley and woodland help emissions disperse. Beyond these spells, Nijmegen usually offers conditions comparable to the wider Dutch average.
Are air quality levels in Nijmegen 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: 20 September 2026 at 14:33 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.
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