SmogRank / Countries / Norway / July 2025

Most polluted cities in Norway, July 2025

17 cities in Norway ranked by their average PM2.5 over the 31 days. Worst: Gjøvik at 10.5 µg/m³, #884 of 2,283 cities in the world. Cleanest: Hamar at 2.4. A city needs measurements on 70% of the days to be ranked.

  1. 1GjøvikInnlandet
    10.5
  2. 2LillestrømAkershus
    9.2
  3. 3SarpsborgØstfold
    8.8
  4. 4PorsgrunnTelemark
    8.5
  5. 4MossØstfold
    8.5
  6. 6DrammenBuskerud
    8.4
  7. 7OsloOslo
    7.5
  8. 7KristiansandAgder
    7.5
  9. 9FredrikstadØstfold
    7.4
  10. 10TrondheimTrøndelag
    7.1
  11. 11NesttunVestland
    6.6
  12. 12BergenVestland
    6.3
  13. 13LillehammerInnlandet
    6.2
  14. 13ÅsaneVestland
    6.2
  15. 15Mo i RanaNordland
    5.8
  16. 16BodøNordland
    4.9
  17. 17HamarInnlandet
    2.4
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, July 2025 · Norway now

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SmogRank, most polluted cities in Norway, PM2.5, July 2025, smogrank.com/no/history/2025-07 (accessed 2 Oct 2026).

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