SmogRank / Countries / Luxembourg / September 2026

Most polluted cities in Luxembourg, September 2026

2 cities in Luxembourg ranked by their average PM2.5 over the 30 days. Worst: Luxembourg at 6.4 µg/m³, #1,082 of 2,332 cities in the world. Cleanest: Esch-sur-Alzette at 5.5. A city needs measurements on 70% of the days to be ranked.

  1. 1LuxembourgLuxembourg
    6.4
  2. 2Esch-sur-AlzetteEsch-sur-Alzette
    5.5
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, September 2026 · Luxembourg now

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SmogRank, most polluted cities in Luxembourg, PM2.5, September 2026, smogrank.com/lu/history/2026-09 (accessed 2 Oct 2026).

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