Worst air pollution Trier, today and tomorrow
Today (17 August): Air quality in Trier is poor. AQI and O3 are poor; NO2 and HCHO are fair; PM2.5 and PM1 are medium; PM10, SO2, and CO are good. Pollution peaks around 7:00 PM (O3: 61.5/100).
Tomorrow (18 August 2026): Air quality in Trier is fair. AQI improves to medium; NO2 decreases to good; O3 decreases to fair; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM1: 45.6/100). 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.
Trier's air quality reflects the Moselle river valley at the German-French-Luxembourg border, with vehicle traffic on the A64 and the Moselle wine tourism corridor contributing local sources. The Moselle valley provides ventilation on westerly winds, while cross-border regional emissions from Luxembourg and the Saarland industrial corridor influence background pollution levels.
Today - 17 August | Pollution peaks at 19:00
AQI:
Poor
61.5/100
PM2.5 (fine particles):
Medium
42.5/100
PM10 (coarse particles):
Good
14.9/100
NO2 (nitrogen dioxide):
Fair
21.8/100
O3 (ozone):
Poor
61.5/100
SO2 (sulfur dioxide):
Good
3.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
21.0/100
PM1 (ultrafine particles):
Medium
45.4/100
Levels show the poorest local air quality during the day
Tomorrow - 18 August | Pollution peaks at 00:00
AQI:
Medium
45.6/100
PM2.5 (fine particles):
Medium
42.7/100
PM10 (coarse particles):
Good
15.5/100
NO2 (nitrogen dioxide):
Good
18.3/100
O3 (ozone):
Fair
24.1/100
SO2 (sulfur dioxide):
Good
3.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.8/100
PM1 (ultrafine particles):
Medium
45.6/100
Pollen forecast in Trier
View pollen forecastFrequently Asked Questions
Is air quality bad in Trier right now?
On 17 August 2026, overall air quality in Trier is poor. AQI is the main air quality indicator at 61.5/100. Pollution peaks around 7:00 PM (O3: 61.5/100).
Will air quality be worse tomorrow in Trier?
On 18 August 2026, air quality conditions in Trier will be better than today, with O3 forecast at fair at 24.1/100. Pollution peaks around 12:00 AM (PM1: 45.6/100).
When is air pollution at its worst in Trier?
Reduced air quality in Trier is most likely when chestnut, maple, and beech pollen peaks, or on windless summer days when pollutants accumulate nearby; local and through traffic is a modest source. Ragweed levels remain generally low here, typical of central and western Germany. Early mornings after overnight rain usually offer the freshest air.
Are air quality levels in Trier 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: 17 August 2026 at 08:27 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.
Get the full experience in the Airmine app.