SmogRank / Countries / Sweden / October 2025

Most polluted cities in Sweden, October 2025

10 cities in Sweden ranked by their average PM2.5 over the 31 days. Worst: Norrköping at 5.6 µg/m³, #1,421 of 2,110 cities in the world. Cleanest: Östersund at 2.6. A city needs measurements on 70% of the days to be ranked.

  1. 1NorrköpingÖstergötland
    5.6
  2. 2UppsalaUppsala
    4.4
  3. 2StockholmStockholm
    4.4
  4. 2SödertäljeStockholm
    4.4
  5. 5LinköpingÖstergötland
    4.3
  6. 6SollentunaStockholm
    3.8
  7. 6ÖrebroÖrebro
    3.8
  8. 8SkellefteåVästerbotten
    3.6
  9. 9VisbyGotland
    3.5
  10. 10ÖstersundJämtland
    2.6
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, October 2025 · Sweden now

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SmogRank, most polluted cities in Sweden, PM2.5, October 2025, smogrank.com/se/history/2025-10 (accessed 2 Oct 2026).

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