Nauru vs Samoa: Average annual exposure to PM2.5 air pollution
Nauru
4.84 micrograms per cubic meter
in 2023
Samoa
4.58 micrograms per cubic meter
in 2023
Nauru rank
189th
Samoa rank
192nd
Average annual exposure to PM2.5 air pollution over time
- Nauru
- Samoa
How they compare
Nauru currently reports 4.84 micrograms per cubic meter against 4.58 micrograms per cubic meter in Samoa, a difference of 0.26 micrograms per cubic meter.
That makes Nauru's figure about 1.1 times Samoa's.
The two have swapped places 8 times across 34 shared years of data; in 1990 it was Nauru ahead.
Nauru ranks 189th and Samoa ranks 192nd of 200 countries.
Across the 4 decades both report, Nauru averaged higher in 3 and Samoa in 1.
Head to head by decade
| Decade | Nauru | Samoa | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 5.56 micrograms per cubic meter | 4.94 micrograms per cubic meter | 0.6216 micrograms per cubic meter | Nauru |
| 2000s | 5.35 micrograms per cubic meter | 5 micrograms per cubic meter | 0.3462 micrograms per cubic meter | Nauru |
| 2010s | 5.43 micrograms per cubic meter | 4.62 micrograms per cubic meter | 0.8124 micrograms per cubic meter | Nauru |
| 2020s | 4.38 micrograms per cubic meter | 4.52 micrograms per cubic meter | 0.1433 micrograms per cubic meter | Samoa |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher average annual exposure to pm2.5 air pollution, Nauru or Samoa?
- Nauru, at 4.84 micrograms per cubic meter against 4.58 micrograms per cubic meter in Samoa as of 2023.
- What is the difference in average annual exposure to pm2.5 air pollution between Nauru and Samoa?
- 0.26 micrograms per cubic meter, with Nauru ahead.
- How many years of comparable data are there for Nauru and Samoa?
- 34 years are reported by both, from 1990 to 2023.
- How do Nauru and Samoa rank globally for average annual exposure to pm2.5 air pollution?
- Nauru ranks 189th and Samoa ranks 192nd of 200 countries.
- Where does this data come from?
- Global Burden of Disease Study 2023, Institute for Health Metrics and Evaluation (IHME), via World Bank (2026) – processed by Our World in Data, published as Average annual exposure to PM2.5 air pollution. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
The average level of exposure of the population to suspended particles less than 2.5 microns in diameter, which are capable of penetrating deep into the respiratory tract and damaging health. This is measured in micrograms per cubic meter.