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
Every city in Norway ranked for March 2026, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1PorsgrunnTelemark
    2
  2. 2FredrikstadØstfold
    2
  3. 3MossØstfold
    2
  4. 4SarpsborgØstfold
    1
  5. 5DrammenBuskerud
    1
  6. 6NesttunVestland
    1
  7. 7BergenVestland
    1
  8. 8LillehammerInnlandet
    1
  9. 9OsloOslo
    1
  10. 10ÅsaneVestland
    1
  11. 11GjøvikInnlandet
    1
  12. 12TrondheimTrøndelag
    1
  13. 13Mo i RanaNordland
    1
  14. 14BodøNordland
    1
Low1–3
Moderate4–6
High7–9
Very high10

The UK's Daily Air Quality Index (1 to 10), PM2.5 bands. 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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