SmogRank / World / Germany / Schleswig-Holstein / March 2025

Most polluted cities in Schleswig-Holstein, Germany, March 2025

8 cities in Schleswig-Holstein, Germany ranked by their average PM2.5 over the 31 days. Worst: Halstenbek at 19.4 µg/m³, #611 of 2,809 cities in the world. Cleanest: Trappenkamp at 14.7. A city needs measurements on 70% of the days to be ranked.

Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.

← Flensburg 12% 10%0
Every city in Schleswig-Holstein, Germany ranked for March 2025, one column each, ranked by unhealthy days: height is the share of its measured days that were unhealthy, colour its average. Point at it to read a city; tap to open it.
  1. 1Flensburg
    12%
  2. 2Halstenbek
    8%
  3. 3Lübeck
    8%
  4. 4Kiel
    8%
  5. 5Lauenburg
    4%
  6. 6Itzehoe
    4%
  7. 7Tarp
    0%
  8. 8Trappenkamp
    0%
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

All cities in the world, March 2025 · All cities in Germany, March 2025 · Schleswig-Holstein now

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SmogRank, most polluted cities in Schleswig-Holstein, Germany, PM2.5, March 2025, smogrank.com/de/region/schleswig-holstein/history/2025-03 (accessed 6 Oct 2026).

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