Air quality by country
Air quality in Norway today
Updated
Good: average US AQI 28 across 4 cities Worst now: Moss (31); cleanest: Tromsø (26).
Live US AQI, PM2.5 and ozone for cities across Norway, ranked from most polluted to cleanest.
- Average US AQI
- 28 Good
- Most polluted now
- Moss AQI 31
- Cleanest now
- Tromsø AQI 26
- Cities above 100
- 0 unhealthy for sensitive groups or worse
Air quality in Norway today
Right now the modelled air quality in Norway averages a US AQI of 28 (Good) across the 4 cities we track. By category: 4 Good (of 4).
That is 38 points better than the worldwide average of 66 across 3,556 cities.
Moss has the worst air at 31 with PM2.5 at 3 µg/m³, while Tromsø is cleanest at 26. No tracked city is above 100, the level where sensitive groups are advised to cut back outdoors.
Norway cities by AQI (most polluted first)
| City | Region | US AQI | Category | PM2.5 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Moss | Østfold | 31 | Good | 3 | 69 |
| Oslo | Oslo | 28 | Good | 3.1 | 64 |
| Bergen | Vestland | 26 | Good | 3.4 | 46 |
| Tromsø | Troms | 26 | Good | 2.7 | 56 |
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Modelled by CAMS (Copernicus) via Open-Meteo, refreshed twice a day; read hour by hour from the forecast.
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Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS).