Exposure to outdoor air pollution in Seychelles
Seychelles: Exposure to outdoor air pollution was 6.9 µg/m³ in 2024. ▲ Rising
Exposure to outdoor air pollution in Seychelles, 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
The most recent figure for exposure to outdoor air pollution in Seychelles is 6.9 µg/m³, measured in 2024.
Compared with earlier readings it is down 1.4% on the previous year and down 6.8% over ten years.
Over the whole period, exposure to outdoor air pollution in Seychelles peaked at 8.5 µg/m³ in 2011 and was at its lowest, 5.3 µg/m³, in 2001.
Seychelles ranks 196th of 241 countries on this measure, in the bottom quarter.
The long-run direction has been consistently rising across the 27 years of available data.
Exposure to outdoor air pollution in Seychelles, year by year
| Year | µg/m³ | Change |
|---|---|---|
| 1998 | 5.4 µg/m³ | — |
| 1999 | 6.4 µg/m³ | +18.5% |
| 2000 | 6.8 µg/m³ | +6.2% |
| 2001 | 5.3 µg/m³ | -22.1% |
| 2002 | 6.1 µg/m³ | +15.1% |
| 2003 | 7.5 µg/m³ | +23.0% |
| 2004 | 6.2 µg/m³ | -17.3% |
| 2005 | 6.4 µg/m³ | +3.2% |
| 2006 | 8.2 µg/m³ | +28.1% |
| 2007 | 7.7 µg/m³ | -6.1% |
| 2008 | 7.5 µg/m³ | -2.6% |
| 2009 | 7.9 µg/m³ | +5.3% |
| 2010 | 7.5 µg/m³ | -5.1% |
| 2011 | 8.5 µg/m³ | +13.3% |
| 2012 | 7 µg/m³ | -17.6% |
| 2013 | 7.9 µg/m³ | +12.9% |
| 2014 | 7.4 µg/m³ | -6.3% |
| 2015 | 6.4 µg/m³ | -13.5% |
| 2016 | 8.4 µg/m³ | +31.2% |
| 2017 | 8.2 µg/m³ | -2.4% |
| 2018 | 7.7 µg/m³ | -6.1% |
| 2019 | 8.4 µg/m³ | +9.1% |
| 2020 | 6.3 µg/m³ | -25.0% |
| 2021 | 5.4 µg/m³ | -14.3% |
| 2022 | 7.2 µg/m³ | +33.3% |
| 2023 | 7 µg/m³ | -2.8% |
| 2024 | 6.9 µg/m³ | -1.4% |
Seychelles compared with similar countries
- Seychelles's 6.9 µg/m³ is below the median for high income countries, which is 10.3 µg/m³, 67% of the median. (85 countries reporting)
- Seychelles's 6.9 µg/m³ is below the median for Sub-Saharan Africa, which is 25.2 µg/m³, 27% of the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 5.9 µg/m³ | 5.4 µg/m³ | 6.4 µg/m³ | 2 |
| 2000s | 6.96 µg/m³ | 5.3 µg/m³ | 8.2 µg/m³ | 10 |
| 2010s | 7.74 µg/m³ | 6.4 µg/m³ | 8.5 µg/m³ | 10 |
| 2020s | 6.56 µg/m³ | 5.4 µg/m³ | 7.2 µg/m³ | 5 |
Countries ranked near Seychelles
- 193 Canada 7 µg/m³ compare
- 193 New Zealand 7 µg/m³ compare
- 193 Solomon Islands 7 µg/m³ compare
- 197 Saint Kitts and Nevis 6.8 µg/m³ compare
- 198 Estonia 6.7 µg/m³ compare
- 198 Norway 6.7 µg/m³ compare
- 198 Sint Maarten (Dutch part) 6.7 µg/m³ compare
More environment data for Seychelles
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.258 °C (2025)
- Temperature change 1.05 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 4.41 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 4.55 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), annual 0 % change on previous year (2024)
Frequently asked questions
- What is exposure to outdoor air pollution in Seychelles?
- Exposure to outdoor air pollution in Seychelles was 6.9 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 Seychelles?
- The highest recorded value was 8.5 µg/m³ in 2011.
- What is the lowest exposure to outdoor air pollution recorded in Seychelles?
- The lowest recorded value was 5.3 µg/m³ in 2001.
- How does Seychelles rank for exposure to outdoor air pollution?
- Seychelles ranks 196th out of 241 countries with data for 2024.
- Is exposure to outdoor air pollution rising or falling in Seychelles?
- Over the last ten years it is down 6.8%. The long-run trend across the full record is rising.
- Where does this Seychelles 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.