Iceland vs Reunion: Exposure to outdoor air pollution
Iceland
4.6 µg/m³
in 2024
Reunion
5 µg/m³
in 2024
Iceland rank
216th
Reunion rank
214th
Exposure to outdoor air pollution over time
- Iceland
- Reunion
How they compare
Reunion currently reports 5 µg/m³ against 4.6 µg/m³ in Iceland, a difference of 0.4 µg/m³.
That makes Reunion's figure about 1.1 times Iceland's.
The two have swapped places 2 times across 27 shared years of data; in 1998 it was Reunion ahead.
Iceland ranks 216th and Reunion ranks 214th of 241 countries.
Reunion has averaged higher in every one of the 4 decades both report.
Head to head by decade
| Decade | Iceland | Reunion | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 3.9 µg/m³ | 5.5 µg/m³ | 1.6 µg/m³ | Reunion |
| 2000s | 4.25 µg/m³ | 5.68 µg/m³ | 1.43 µg/m³ | Reunion |
| 2010s | 4.27 µg/m³ | 6.23 µg/m³ | 1.96 µg/m³ | Reunion |
| 2020s | 4.52 µg/m³ | 5.12 µg/m³ | 0.6 µg/m³ | Reunion |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher exposure to outdoor air pollution, Iceland or Reunion?
- Reunion, at 5 µg/m³ against 4.6 µg/m³ in Iceland as of 2024.
- What is the difference in exposure to outdoor air pollution between Iceland and Reunion?
- 0.4 µg/m³, with Reunion ahead.
- How many years of comparable data are there for Iceland and Reunion?
- 27 years are reported by both, from 1998 to 2024.
- How do Iceland and Reunion rank globally for exposure to outdoor air pollution?
- Iceland ranks 216th and Reunion ranks 214th of 241 countries.
- Where does this data come from?
- SatPM, Atmospheric Composition Analysis Group, Washington University in St. Louis (2026) – with minor processing by Our World in Data, published as Exposure to outdoor air pollution. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Annual population-weighted average concentration of fine particulate matter (PM2.5) in the air, measured in micrograms per cubic meter (µg/m³). Fine particulate matter (PM2.5) are particles with a diameter of 2.5 micrometers or less, which can pose significant health risks.