Exposure to outdoor air pollution in Samoa
Samoa: Exposure to outdoor air pollution was 4.1 µg/m³ in 2024. ▲ Rising
Exposure to outdoor air pollution in Samoa, 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 Samoa is 4.1 µg/m³, measured in 2024.
Compared with earlier readings it is down 4.7% on the previous year and unchanged over ten years.
Over the whole period, exposure to outdoor air pollution in Samoa peaked at 4.8 µg/m³ in 2015 and was at its lowest, 2.9 µg/m³, in 1999.
Samoa ranks 219th 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.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 3.25 µg/m³ | 2.9 µg/m³ | 3.6 µg/m³ | 2 |
| 2000s | 3.83 µg/m³ | 3.6 µg/m³ | 4.3 µg/m³ | 10 |
| 2010s | 4.06 µg/m³ | 3.6 µg/m³ | 4.8 µg/m³ | 10 |
| 2020s | 3.92 µg/m³ | 3.1 µg/m³ | 4.3 µg/m³ | 5 |
Countries ranked near Samoa
- 216 Iceland 4.6 µg/m³ compare
- 217 Tuvalu 4.5 µg/m³ compare
- 218 Aland Islands 4.3 µg/m³ compare
- 219 Saint Helena 4.1 µg/m³ compare
- 221 Cocos Islands 4 µg/m³ compare
- 221 Faroe Islands 4 µg/m³ compare
- 221 Tokelau 4 µg/m³ compare
- 221 Wallis and Futuna 4 µg/m³ compare
More environment data for Samoa
- Total greenhouse gas emissions excluding LULUCF 0.5216 Mt CO2e (2024)
- Total greenhouse gas emissions excluding LULUCF per capita 2.39 t CO2e/capita (2024)
- Methane (CH4) emissions from Agriculture 0.097 Mt CO2e (2024)
- Methane (CH4) emissions from Building (Energy) 0.0061 Mt CO2e (2024)
- Methane (CH4) emissions from Fugitive Emissions (Energy) 0.0018 Mt CO2e (2024)
- Methane (CH4) emissions from Industrial Combustion (Energy) 0.0001 Mt CO2e (2024)
- Methane (CH4) emissions (total) excluding LULUCF 0.1342 Mt CO2e (2024)
- Methane (CH4) emissions from Power Industry (Energy) 0.0001 Mt CO2e (2024)
- Methane (CH4) emissions from Transport (Energy) 0.0004 Mt CO2e (2024)
- Methane (CH4) emissions from Waste 0.0288 Mt CO2e (2024)
Frequently asked questions
- What is exposure to outdoor air pollution in Samoa?
- Exposure to outdoor air pollution in Samoa was 4.1 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 Samoa?
- The highest recorded value was 4.8 µg/m³ in 2015.
- What is the lowest exposure to outdoor air pollution recorded in Samoa?
- The lowest recorded value was 2.9 µg/m³ in 1999.
- How does Samoa rank for exposure to outdoor air pollution?
- Samoa ranks 219th out of 241 countries with data for 2024.
- Is exposure to outdoor air pollution rising or falling in Samoa?
- Over the last ten years it is unchanged. The long-run trend across the full record is rising.
- Where does this Samoa 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.