SmogRank / World / Germany / North Rhine-Westphalia / April 2024
Most polluted cities in North Rhine-Westphalia, Germany, April 2024
32 cities in North Rhine-Westphalia, Germany ranked by their average PM2.5 over the 30 days. Worst: Unna at 8.0 µg/m³, #1,288 of 2,482 cities in the world. Cleanest: Netphen at 3.4. 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.
- 1Unna 0%
- 2Krefeld 0%
- 3Datteln 0%
- 4Hagen 0%
- 5Gelsenkirchen 0%
- 6Wuppertal 0%
- 7Münster 0%
- 8Dortmund 0%
- 8Bottrop 0%
- 8Bielefeld 0%
- 11Köln 0%
- 11Duisburg 0%
- 11Borken 0%
- 14Lüdenscheid 0%
- 15Oberhausen 0%
- 15Bergheim 0%
- 17Düsseldorf 0%
- 18Essen 0%
- 19Niederzier 0%
- 20Wesel 0%
- 20Leverkusen 0%
- 20Bonn 0%
- 23Ratingen 0%
- 23Mönchengladbach 0%
- 23Aachen 0%
- 26Kaldenkirchen 0%
- 27Schwerte 0%
- 28Warstein 0%
- 28Titz 0%
- 28Soest 0%
- 28Hattingen 0%
- 32Netphen 0%
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 North Rhine-Westphalia, Germany, PM2.5, April 2024, smogrank.com/de/region/north-rhine-westphalia/history/2024-04 (accessed 6 Oct 2026).
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.