SmogRank / World / United States / Minnesota / September 2024
Most polluted cities in Minnesota, United States, September 2024
16 cities in Minnesota, United States ranked by their average PM2.5 over the 30 days. Worst: Rochester at 9.6 µg/m³, #474 of 1,964 cities in the world. Cleanest: Cloquet at 5.9. 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.
- 1Detroit Lakes 3%
- 2Rochester 0%
- 3Burnsville 0%
- 4Saint Paul 0%
- 5Shakopee 0%
- 6Marshall 0%
- 7Mankato 0%
- 7Minneapolis 0%
- 9Saint Cloud 0%
- 10Virginia 0%
- 11Blaine 0%
- 11Saint Michael 0%
- 13Brainerd 0%
- 14Duluth 0%
- 15Apple Valley 0%
- 16Cloquet 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
All cities in the world, September 2024 · All cities in United States, September 2024 · Minnesota now
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SmogRank, most polluted cities in Minnesota, United States, PM2.5, September 2024, smogrank.com/us/region/minnesota/history/2024-09 (accessed 7 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.