What is the air quality trend in Tromsø?

Over the past 12 days, Tromsø had an average AQI of 18 based on station measurements. The worst day was 2026-07-30 with AQI 24.

How is Tromsø air quality measured?

Air quality in Tromsø is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Tromsø, Norway

Name: Tromsø Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Tromsø, Norway.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

59h

PM2.5 Station

59h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	13	11–15	3.1 µg/m³	8h	1
2026-08-07	20	16–33	4.8 µg/m³	16h	1
2026-08-06	16	14–17	3.7 µg/m³	5h	1
2026-08-05	16	14–18	3.8 µg/m³	4h	1
2026-08-04	14	9–18	3.4 µg/m³	11h	1
2026-08-03	19	19–19	4.6 µg/m³	1h	1
2026-08-01	15	12–18	3.6 µg/m³	2h	1
2026-07-31	22	14–32	5.3 µg/m³	4h	1
2026-07-30	24	24–24	5.8 µg/m³	1h	1
2026-07-28	21	19–23	5.0 µg/m³	2h	1
2026-07-27	22	20–23	5.2 µg/m³	3h	1
2026-07-25	18	16–20	4.3 µg/m³	2h	1

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