SmogRank / World / Norway / March 2025

Most polluted cities in Norway, March 2025

17 cities in Norway ranked by their average PM2.5 over the 31 days. Worst: Lillestrøm at 13.7 µg/m³, #981 of 2,500 cities in the world. Cleanest: Bodø at 3.8. A city needs measurements on 70% of the days to be ranked.

← Lillestrøm 13.7 µg/m³ 20 µg/m³0
Every city in Norway ranked for March 2025, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1LillestrømAkershus
    60
  2. 1HamarInnlandet
    60
  3. 3DrammenBuskerud
    55
  4. 4MossØstfold
    53
  5. 5KristiansandAgder
    52
  6. 6LillehammerInnlandet
    51
  7. 7SarpsborgØstfold
    51
  8. 8FredrikstadØstfold
    50
  9. 9PorsgrunnTelemark
    49
  10. 10OsloOslo
    48
  11. 11NesttunVestland
    43
  12. 11GjøvikInnlandet
    43
  13. 13BergenVestland
    41
  14. 14ÅsaneVestland
    32
  15. 15Mo i RanaNordland
    30
  16. 16TrondheimTrøndelag
    23
  17. 17BodøNordland
    21
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

All cities in the world, March 2025 · Norway now

Use this board

SmogRank, most polluted cities in Norway, PM2.5, March 2025, smogrank.com/no/history/2025-03 (accessed 2 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.