SmogRank / Cleaner or dirtier / Luxembourg

Luxembourg: cleaner or dirtier, 2026

In Luxembourg, 2 cities have enough days in both years to compare 2026 so far (1 January to 6 October) with the same days of 2025: 2 got dirtier and 0 cleaner.

Every city's change from 2025 to 2026, one column each, biggest rise on the left, coloured by its 2026 level. Above the line: dirtier. Below: cleaner.

The 2 cities that got dirtier, biggest rise first

#City20252026Change
1GrevenmacherLuxembourg3842+0.7 µg/m³+10%
2LuxembourgLuxembourg4750+0.5 µg/m³+6%

Means in US AQI over the days a city was measured in both years, the same calendar days each year; a city needs 55% of the days paired, and at least 30. The change is in µg/m³ and per cent. How we compare.

Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Updated 2026-10-07 13:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.