SmogRank / World / Germany / Lower Saxony / August 2025

Most polluted cities in Lower Saxony, Germany, August 2025

26 cities in Lower Saxony, Germany ranked by their average PM2.5 over the 31 days. Worst: Oldenburg at 7.4 µg/m³, #1,968 of 2,841 cities in the world. Cleanest: Braunlage at 5.4. 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 August 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%
3Hildesheim
0%
3Emden
0%
5Norderney
0%
5Braunschweig
0%
7Walsrode
0%
7Ritterhude
0%
7Osnabrück
0%
7Hannover
0%
11Wolfsburg
0%
11Salzgitter
0%
11Göttingen
0%
14Lüneburg
0%
14Duderstadt
0%
16Rinteln
0%
16Lüchow
0%
16Lingen
0%
19Jork
0%
20Otterndorf
0%
20Goslar
0%
22Wilhelmshaven
0%
22Lemwerder
0%
24Uslar
0%
25Oyten
0%
25Braunlage
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, August 2025, smogrank.com/de/region/lower-saxony/history/2025-08 (accessed 6 Oct 2026).

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