Worst air pollution Mersch, today and tomorrow
Today (16 July): Air quality in Mersch is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (O3: 59.4/100).
Tomorrow (17 July 2026): Air quality in Mersch is medium. All pollutants stay as today. Pollution peaks around 12:00 PM (O3: 46.7/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Mersch's air quality reflects its position in the Alzette river valley in central Luxembourg, with vehicle traffic from the N7 road and commuter routes toward Luxembourg City contributing local sources. Consistent Atlantic westerlies generally provide reliable ventilation, while winter residential heating adds a modest seasonal increase, keeping Mersch among Luxembourg's more moderate air quality environments.
Today - 16 July | Pollution peaks at 18:00
AQI:
Medium
59.4/100
PM2.5 (fine particles):
Good
8.7/100
PM10 (coarse particles):
Good
2.9/100
NO2 (nitrogen dioxide):
Good
9.5/100
O3 (ozone):
Medium
59.4/100
SO2 (sulfur dioxide):
Good
2.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Good
10.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Medium
46.7/100
PM2.5 (fine particles):
Good
8.7/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Good
14.2/100
O3 (ozone):
Medium
46.7/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Good
11.6/100
Pollen forecast in Mersch
View pollen forecastFrequently Asked Questions
Is air quality bad in Mersch right now?
On 16 July 2026, overall air quality in Mersch is medium. AQI is the main air quality indicator at 59.4/100. Pollution peaks around 6:00 PM (O3: 59.4/100).
Will air quality be worse tomorrow in Mersch?
On 17 July 2026, air quality conditions in Mersch will be similar to today, with AQI forecast at medium at 46.7/100. Pollution peaks around 12:00 PM (O3: 46.7/100).
When is air pollution at its worst in Mersch?
Air quality dips in Mersch mostly track local tree and grass pollen peaks and periods of vehicle traffic from the N7 road and commuter routes toward Luxembourg City; things typically settle down again once the weather pattern shifts.
Are air quality levels in Mersch 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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app