Exposure to outdoor air pollution in Reunion
Reunion: Exposure to outdoor air pollution was 5 µg/m³ in 2024. ▬ Flat
Exposure to outdoor air pollution in Reunion, 1998–2024
Source: SatPM, Atmospheric Composition Analysis Group, Washington University in St. Louis (2026) – with minor processing by Our World in Data. Measured in µg/m³.
Analysis
Reunion recorded 5 µg/m³ for exposure to outdoor air pollution in 2024.
The figure is up 2.0% on the previous year and down 13.8% over ten years.
Over the whole period, exposure to outdoor air pollution in Reunion peaked at 6.8 µg/m³ in 2016 and was at its lowest, 4.9 µg/m³, in 2023.
Reunion ranks 214th of 241 countries on this measure, in the bottom quarter.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 5.5 µg/m³ | 5.2 µg/m³ | 5.8 µg/m³ | 2 |
| 2000s | 5.68 µg/m³ | 5.5 µg/m³ | 5.9 µg/m³ | 10 |
| 2010s | 6.23 µg/m³ | 5.8 µg/m³ | 6.8 µg/m³ | 10 |
| 2020s | 5.12 µg/m³ | 4.9 µg/m³ | 5.3 µg/m³ | 5 |
Countries ranked near Reunion
- 212 Bahamas 5.2 µg/m³ compare
- 213 Saint Pierre and Miquelon 5.1 µg/m³ compare
- 215 New Caledonia 4.9 µg/m³ compare
- 216 Iceland 4.6 µg/m³ compare
- 217 Tuvalu 4.5 µg/m³ compare
More environment data for Reunion
- Forest area 77,150 hectares (2025)
- Share of global forest area 0.0% (2025)
- Annual change in forest area 16 hectares (2025)
- Annual change in forest area as a share of forest area 0.0% (2025)
- Annual change in forest area vs. GDP per capita 0.0% (2025)
- Change in domestic forest area vs. deforestation embedded in imported goods 16 hectares (2025)
- Emissions of air pollutants 34,888 tonnes (2022)
- Exposure to air pollution from human sources 2.66 micrograms per cubic meter (2024)
- Land use over the long-term 15,446 hectares (2025)
- Grazing land use over the long-term 15,446 hectares (2025)
Frequently asked questions
- What is exposure to outdoor air pollution in Reunion?
- Exposure to outdoor air pollution in Reunion was 5 µg/m³ in 2024, according to SatPM, Atmospheric Composition Analysis Group, Washington University in St. Louis (2026) – with minor processing by Our World in Data.
- What is the highest exposure to outdoor air pollution recorded in Reunion?
- The highest recorded value was 6.8 µg/m³ in 2016.
- What is the lowest exposure to outdoor air pollution recorded in Reunion?
- The lowest recorded value was 4.9 µg/m³ in 2023.
- How does Reunion rank for exposure to outdoor air pollution?
- Reunion ranks 214th out of 241 countries with data for 2024.
- Is exposure to outdoor air pollution rising or falling in Reunion?
- Over the last ten years it is down 13.8%. The long-run trend across the full record is flat.
- Where does this Reunion data come from?
- The figures come from SatPM, Atmospheric Composition Analysis Group, Washington University in St. Louis (2026) – with minor processing by Our World in Data, published as part of Exposure to outdoor air pollution. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 27 observations, free to reuse under CC BY 4.0 (Our World in Data).
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.