Cocos Islands vs Samoa: Exposure to outdoor air pollution
Cocos Islands
4 µg/m³
in 2024
Samoa
4.1 µg/m³
in 2024
Cocos Islands rank
221st
Samoa rank
219th
Exposure to outdoor air pollution over time
- Cocos Islands
- Samoa
How they compare
Samoa currently reports 4.1 µg/m³ against 4 µg/m³ in Cocos Islands, a difference of 0.1 µg/m³.
The two have swapped places 8 times across 27 shared years of data; in 1998 it was Samoa ahead.
Cocos Islands ranks 221st and Samoa ranks 219th of 241 countries.
Across the 4 decades both report, Cocos Islands averaged higher in 2 and Samoa in 2.
Head to head by decade
| Decade | Cocos Islands | Samoa | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 2.9 µg/m³ | 3.25 µg/m³ | 0.35 µg/m³ | Samoa |
| 2000s | 3.34 µg/m³ | 3.83 µg/m³ | 0.49 µg/m³ | Samoa |
| 2010s | 4.24 µg/m³ | 4.06 µg/m³ | 0.18 µg/m³ | Cocos Islands |
| 2020s | 4.26 µg/m³ | 3.92 µg/m³ | 0.34 µg/m³ | Cocos Islands |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher exposure to outdoor air pollution, Cocos Islands or Samoa?
- Samoa, at 4.1 µg/m³ against 4 µg/m³ in Cocos Islands as of 2024.
- What is the difference in exposure to outdoor air pollution between Cocos Islands and Samoa?
- 0.1 µg/m³, with Samoa ahead.
- How many years of comparable data are there for Cocos Islands and Samoa?
- 27 years are reported by both, from 1998 to 2024.
- How do Cocos Islands and Samoa rank globally for exposure to outdoor air pollution?
- Cocos Islands ranks 221st and Samoa ranks 219th 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.