Worst air pollution Trøjborg - Aarhus, today and tomorrow
Today (4 August): Air quality in Trøjborg is fair. O3 is fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (NO2: 55.1/100).
Tomorrow (5 August 2026): Air quality in Trøjborg is fair. All pollutants stay as today. Pollution peaks around 7:00 AM (NO2: 43.6/100). 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.
Trøjborg's proximity to Aarhus University and the city's inner ring road means it carries more bicycle and pedestrian traffic than car traffic, keeping local vehicle emissions relatively modest for such a central district. Air quality here is broadly comparable to Aarhus's other inner-city neighbourhoods.
Today - 4 August | Pollution peaks at 06:00
AQI:
Medium
55.1/100
PM2.5 (fine particles):
Good
13.1/100
PM10 (coarse particles):
Good
4.5/100
NO2 (nitrogen dioxide):
Medium
55.1/100
O3 (ozone):
Fair
34.4/100
SO2 (sulfur dioxide):
Good
6.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.4/100
PM1 (ultrafine particles):
Good
16.4/100
Levels show the poorest local air quality during the day
Tomorrow - 5 August | Pollution peaks at 07:00
AQI:
Medium
43.6/100
PM2.5 (fine particles):
Good
13.5/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Medium
43.6/100
O3 (ozone):
Fair
28.6/100
SO2 (sulfur dioxide):
Good
5.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.0/100
PM1 (ultrafine particles):
Good
16.9/100
Other Landmarks in Aarhus
Sports venues in Aarhus
Frequently Asked Questions
Is air quality bad in Trøjborg right now?
On 4 August 2026, overall air quality in Trøjborg is fair. O3 is the main pollutant at 34.4/100. Pollution peaks around 6:00 AM (NO2: 55.1/100).
Will air quality be worse tomorrow in Trøjborg?
On 5 August 2026, air quality conditions in Trøjborg will be similar to today, with O3 forecast at fair at 28.6/100. Pollution peaks around 7:00 AM (NO2: 43.6/100).
When is air pollution at its worst in Trøjborg?
Trøjborg's air quality dips are limited mainly to ordinary inner-city traffic, kept modest by heavy bicycle and pedestrian use around Aarhus University. Conditions here are broadly comparable to the city's other inner-city neighbourhoods.
Are air quality levels in Trøjborg 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 Denmark?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 4 August 2026 at 16:38 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.
For long term forecasts and maps, see the Airmine app