SmogRank / World / Norway / October 2025

Most polluted cities in Norway, October 2025

No city in Norway had measurements on 70% of the days, so October 2025 has no board for Norway.

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, October 2025 · Norway now