Guam vs Marshall Islands: Average annual exposure to PM2.5 air pollution
Average annual exposure to PM2.5 air pollution over time
- Guam
- Marshall Islands
How they compare
Marshall Islands currently reports 4.1 micrograms per cubic meter against 3.47 micrograms per cubic meter in Guam, a difference of 0.63 micrograms per cubic meter.
That makes Marshall Islands's figure about 1.2 times Guam's.
The two have swapped places 4 times across 34 shared years of data; in 1990 it was Marshall Islands ahead.
Guam ranks 198th and Marshall Islands ranks 195th of 200 countries.
Marshall Islands has averaged higher in every one of the 4 decades both report.
Head to head by decade
| Decade | Guam | Marshall Islands | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 4.2 micrograms per cubic meter | 4.77 micrograms per cubic meter | 0.5749 micrograms per cubic meter | Marshall Islands |
| 2000s | 4.24 micrograms per cubic meter | 5 micrograms per cubic meter | 0.7539 micrograms per cubic meter | Marshall Islands |
| 2010s | 4.02 micrograms per cubic meter | 4.75 micrograms per cubic meter | 0.7256 micrograms per cubic meter | Marshall Islands |
| 2020s | 3.42 micrograms per cubic meter | 4.34 micrograms per cubic meter | 0.9229 micrograms per cubic meter | Marshall Islands |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher average annual exposure to pm2.5 air pollution, Guam or Marshall Islands?
- Marshall Islands, at 4.1 micrograms per cubic meter against 3.47 micrograms per cubic meter in Guam as of 2023.
- What is the difference in average annual exposure to pm2.5 air pollution between Guam and Marshall Islands?
- 0.63 micrograms per cubic meter, with Marshall Islands ahead.
- How many years of comparable data are there for Guam and Marshall Islands?
- 34 years are reported by both, from 1990 to 2023.
- How do Guam and Marshall Islands rank globally for average annual exposure to pm2.5 air pollution?
- Guam ranks 198th and Marshall Islands ranks 195th 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.