SmogRank / World / Germany / Lower Saxony / January 2025

Most polluted cities in Lower Saxony, Germany, January 2025

27 cities in Lower Saxony, Germany ranked by their average PM2.5 over the 31 days. Worst: Oldenburg at 10.6 µg/m³, #894 of 2,426 cities in the world. Cleanest: Braunlage at 1.5. 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.

← Oldenburg 0% 0.75%0

Every city in Lower Saxony, Germany ranked for January 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.

1Oldenburg
0%
2Bösel
0%
3Ritterhude
0%
4Walsrode
0%
5Osnabrück
0%
6Norderney
0%
7Oyten
0%
8Jork
0%
8Emden
0%
10Lingen
0%
11Wilhelmshaven
0%
12Hannover
0%
12Lemwerder
0%
14Otterndorf
0%
15Wolfsburg
0%
16Hildesheim
0%
17Braunschweig
0%
18Göttingen
0%
19Lüneburg
0%
20Rinteln
0%
20Duderstadt
0%
22Wittingen
0%
22Lüchow
0%
24Salzgitter
0%
25Uslar
0%
26Goslar
0%
27Braunlage
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

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SmogRank, most polluted cities in Lower Saxony, Germany, PM2.5, January 2025, smogrank.com/de/region/lower-saxony/history/2025-01 (accessed 7 Oct 2026).

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.