SmogRank / World / Germany / North Rhine-Westphalia / May 2024

Most polluted cities in North Rhine-Westphalia, Germany, May 2024

32 cities in North Rhine-Westphalia, Germany ranked by their average PM2.5 over the 31 days. Worst: Datteln at 12.4 µg/m³, #426 of 2,641 cities in the world. Cleanest: Netphen at 4.9. 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.

← Datteln 0% 0.75%0

Every city in North Rhine-Westphalia, Germany ranked for May 2024, 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.

1Datteln
0%
2Krefeld
0%
3Düsseldorf
0%
4Bergheim
0%
5Dortmund
0%
6Kaldenkirchen
0%
6Borken
0%
8Gelsenkirchen
0%
9Köln
0%
9Hagen
0%
9Duisburg
0%
9Bottrop
0%
13Unna
0%
13Oberhausen
0%
15Titz
0%
15Niederzier
0%
15Mönchengladbach
0%
18Wesel
0%
19Wuppertal
0%
20Ratingen
0%
21Bonn
0%
22Münster
0%
22Essen
0%
24Leverkusen
0%
25Hattingen
0%
25Aachen
0%
27Lüdenscheid
0%
28Bielefeld
0%
29Schwerte
0%
30Soest
0%
31Warstein
0%
32Netphen
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 North Rhine-Westphalia, Germany, PM2.5, May 2024, smogrank.com/de/region/north-rhine-westphalia/history/2024-05 (accessed 6 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.