SmogRank / Countries / Norway / June 2025

Most polluted cities in Norway, June 2025

17 cities in Norway ranked by their average PM2.5 over the 30 days. Worst: Porsgrunn at 6.7 µg/m³, #1,563 of 1,912 cities in the world. Cleanest: Bodø at 3.1. A city needs measurements on 70% of the days to be ranked.

  1. 1PorsgrunnTelemark
    6.7
  2. 2SarpsborgØstfold
    5.9
  3. 2KristiansandAgder
    5.9
  4. 4MossØstfold
    5.8
  5. 5NesttunVestland
    5.3
  6. 6LillestrømAkershus
    5.2
  7. 6HamarInnlandet
    5.2
  8. 8FredrikstadØstfold
    5.1
  9. 9BergenVestland
    5.0
  10. 10OsloOslo
    4.5
  11. 11ÅsaneVestland
    4.4
  12. 12TrondheimTrøndelag
    4.0
  13. 12Mo i RanaNordland
    4.0
  14. 14DrammenBuskerud
    3.9
  15. 15LillehammerInnlandet
    3.6
  16. 16GjøvikInnlandet
    3.4
  17. 17BodøNordland
    3.1
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, June 2025 · Norway now

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SmogRank, most polluted cities in Norway, PM2.5, June 2025, smogrank.com/no/history/2025-06 (accessed 2 Oct 2026).

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