SmogRank / World / Norway / March 2026

Most polluted cities in Norway, March 2026

14 cities in Norway ranked by their average PM2.5 over the 31 days. Worst: Porsgrunn at 14.0 µg/m³, #901 of 2,616 cities in the world. Cleanest: Bodø at 4.8. A city needs measurements on 70% of the days to be ranked.

← Porsgrunn 14.0 µg/m³ 20 µg/m³0
Every city in Norway ranked for March 2026, 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. 1PorsgrunnTelemark
    23
  2. 2FredrikstadØstfold
    20
  3. 3MossØstfold
    20
  4. 4SarpsborgØstfold
    18
  5. 5DrammenBuskerud
    17
  6. 6NesttunVestland
    17
  7. 7BergenVestland
    15
  8. 8LillehammerInnlandet
    15
  9. 9OsloOslo
    15
  10. 10ÅsaneVestland
    13
  11. 11GjøvikInnlandet
    10
  12. 12TrondheimTrøndelag
    10
  13. 13Mo i RanaNordland
    8
  14. 14BodøNordland
    8
Good0–50
Satisfactory51–100
Moderate101–200
Poor201–300
Very poor301–400
Severe401+

India's National Air Quality Index (CPCB), PM2.5 sub-index. 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 2026 · Norway now

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

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