Samoa vs Tonga: Average annual exposure to PM2.5 air pollution
Samoa
4.58 micrograms per cubic meter
in 2023
Tonga
4.69 micrograms per cubic meter
in 2023
Samoa rank
192nd
Tonga rank
190th
Average annual exposure to PM2.5 air pollution over time
- Samoa
- Tonga
How they compare
Tonga currently reports 4.69 micrograms per cubic meter against 4.58 micrograms per cubic meter in Samoa, a difference of 0.11 micrograms per cubic meter.
The two have swapped places 15 times across 34 shared years of data; in 1990 it was Samoa ahead.
Samoa ranks 192nd and Tonga ranks 190th of 200 countries.
Across the 4 decades both report, Samoa averaged higher in 2 and Tonga in 2.
Head to head by decade
| Decade | Samoa | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 4.94 micrograms per cubic meter | 4.95 micrograms per cubic meter | 0.016 micrograms per cubic meter | Tonga |
| 2000s | 5 micrograms per cubic meter | 4.9 micrograms per cubic meter | 0.1086 micrograms per cubic meter | Samoa |
| 2010s | 4.62 micrograms per cubic meter | 4.48 micrograms per cubic meter | 0.1455 micrograms per cubic meter | Samoa |
| 2020s | 4.52 micrograms per cubic meter | 4.74 micrograms per cubic meter | 0.2154 micrograms per cubic meter | Tonga |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher average annual exposure to pm2.5 air pollution, Samoa or Tonga?
- Tonga, at 4.69 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 Samoa and Tonga?
- 0.11 micrograms per cubic meter, with Tonga ahead.
- How many years of comparable data are there for Samoa and Tonga?
- 34 years are reported by both, from 1990 to 2023.
- How do Samoa and Tonga rank globally for average annual exposure to pm2.5 air pollution?
- Samoa ranks 192nd and Tonga ranks 190th 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.