Nitrogen dioxide concentrations in European capital cities - monthly in Oslo
Oslo: Nitrogen dioxide concentrations in European capital cities - monthly was 9.8 Micrograms per cubic metre in 2026. ▼ Falling
Nitrogen dioxide concentrations in European capital cities - monthly in Oslo, 2018–2026
Source: Eurostat. Measured in Micrograms per cubic metre.
Analysis
Oslo recorded 9.8 Micrograms per cubic metre for nitrogen dioxide concentrations in european capital cities - monthly in 2026. That is the lowest value across all 9 years on record.
Compared with earlier readings it is down 51.5% on the previous year and down 75.7% over ten years.
Over the whole period, nitrogen dioxide concentrations in european capital cities - monthly in Oslo peaked at 40.4 Micrograms per cubic metre in 2018 and was at its lowest, 9.8 Micrograms per cubic metre, in 2026.
That places Oslo 25th out of 30 regions with data for 2026, putting it in the bottom quarter.
Nitrogen dioxide concentrations in European capital cities - monthly in Oslo, year by year
| Year | Micrograms per cubic metre | Change |
|---|---|---|
| 2018 | 40.4 Micrograms per cubic metre | — |
| 2019 | 36.2 Micrograms per cubic metre | -10.4% |
| 2020 | 22.2 Micrograms per cubic metre | -38.7% |
| 2021 | 34 Micrograms per cubic metre | +53.2% |
| 2022 | 30.9 Micrograms per cubic metre | -9.1% |
| 2023 | 31 Micrograms per cubic metre | +0.3% |
| 2024 | 26.4 Micrograms per cubic metre | -14.8% |
| 2025 | 20.2 Micrograms per cubic metre | -23.5% |
| 2026 | 9.8 Micrograms per cubic metre | -51.5% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 38.3 Micrograms per cubic metre | 36.2 Micrograms per cubic metre | 40.4 Micrograms per cubic metre | 2 |
| 2020s | 24.93 Micrograms per cubic metre | 9.8 Micrograms per cubic metre | 34 Micrograms per cubic metre | 7 |
More reference data data for Oslo
- Cooling and heating degree days - Cities and FUAs — Change in heating -146.94 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -3.98 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs 4,051 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 2.65 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -707.46 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -9.41 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data -8.9 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 18 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 9.21 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - annual data -7.42 % change on previous year (2025)
Frequently asked questions
- What is nitrogen dioxide concentrations in european capital cities - monthly in Oslo?
- Nitrogen dioxide concentrations in european capital cities - monthly in Oslo was 9.8 Micrograms per cubic metre in 2026, according to Eurostat.
- What is the highest nitrogen dioxide concentrations in european capital cities - monthly recorded in Oslo?
- The highest recorded value was 40.4 Micrograms per cubic metre in 2018.
- What is the lowest nitrogen dioxide concentrations in european capital cities - monthly recorded in Oslo?
- The lowest recorded value was 9.8 Micrograms per cubic metre in 2026.
- How does Oslo rank for nitrogen dioxide concentrations in european capital cities - monthly?
- Oslo ranks 25th out of 30 regions with data for 2026.
- Is nitrogen dioxide concentrations in european capital cities - monthly rising or falling in Oslo?
- Over the last ten years it is down 75.7%. The long-run trend across the full record is falling.
- Where does this Oslo data come from?
- The figures come from Eurostat, published as part of Nitrogen dioxide concentrations in European capital cities - monthly averages, experimental statistics. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 9 observations, free to reuse under CC BY 4.0 (Eurostat).