Samoa vs Tuvalu: Exposure to outdoor air pollution
Samoa
4.1 µg/m³
in 2024
Tuvalu
4.5 µg/m³
in 2024
Samoa rank
219th
Tuvalu rank
217th
Exposure to outdoor air pollution over time
- Samoa
- Tuvalu
How they compare
Tuvalu currently reports 4.5 µg/m³ against 4.1 µg/m³ in Samoa, a difference of 0.4 µg/m³.
That makes Tuvalu's figure about 1.1 times Samoa's.
The two have swapped places 5 times across 27 shared years of data; in 1998 it was Samoa ahead.
Samoa ranks 219th and Tuvalu ranks 217th of 241 countries.
Tuvalu has averaged higher in every one of the 4 decades both report.
Head to head by decade
| Decade | Samoa | Tuvalu | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 3.25 µg/m³ | 3.25 µg/m³ | 0 µg/m³ | — |
| 2000s | 3.83 µg/m³ | 4.03 µg/m³ | 0.2 µg/m³ | Tuvalu |
| 2010s | 4.06 µg/m³ | 4.67 µg/m³ | 0.61 µg/m³ | Tuvalu |
| 2020s | 3.92 µg/m³ | 4.4 µg/m³ | 0.48 µg/m³ | Tuvalu |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher exposure to outdoor air pollution, Samoa or Tuvalu?
- Tuvalu, at 4.5 µg/m³ against 4.1 µg/m³ in Samoa as of 2024.
- What is the difference in exposure to outdoor air pollution between Samoa and Tuvalu?
- 0.4 µg/m³, with Tuvalu ahead.
- How many years of comparable data are there for Samoa and Tuvalu?
- 27 years are reported by both, from 1998 to 2024.
- How do Samoa and Tuvalu rank globally for exposure to outdoor air pollution?
- Samoa ranks 219th and Tuvalu ranks 217th 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.