Average annual exposure to PM2.5 air pollution in American Samoa
American Samoa: Average annual exposure to PM2.5 air pollution was 4.33 micrograms per cubic meter in 2023. ▼ Falling
Average annual exposure to PM2.5 air pollution in American Samoa, 1990–2023
Source: Global Burden of Disease Study 2023, Institute for Health Metrics and Evaluation (IHME), via World Bank (2026) – processed by Our World in Data. Measured in micrograms per cubic meter.
Analysis
American Samoa recorded 4.33 micrograms per cubic meter for average annual exposure to pm2.5 air pollution in 2023.
The figure is down 12.4% on the previous year and up 3.2% over ten years.
Over the whole period, average annual exposure to pm2.5 air pollution in American Samoa peaked at 5 micrograms per cubic meter in 2001 and was at its lowest, 3.45 micrograms per cubic meter, in 2021.
American Samoa ranks 194th of 200 countries on this measure, in the bottom quarter.
The long-run direction has been consistently falling across the 34 years of available data.
Average annual exposure to PM2.5 air pollution in American Samoa, year by year
| Year | micrograms per cubic meter | Change |
|---|---|---|
| 1990 | 4.81 micrograms per cubic meter | — |
| 1991 | 4.72 micrograms per cubic meter | -1.8% |
| 1992 | 4.73 micrograms per cubic meter | +0.2% |
| 1993 | 4.74 micrograms per cubic meter | +0.2% |
| 1994 | 4.75 micrograms per cubic meter | +0.2% |
| 1995 | 4.56 micrograms per cubic meter | -3.9% |
| 1996 | 4.77 micrograms per cubic meter | +4.4% |
| 1997 | 4.77 micrograms per cubic meter | +0.2% |
| 1998 | 4.78 micrograms per cubic meter | +0.2% |
| 1999 | 4.79 micrograms per cubic meter | +0.2% |
| 2000 | 4.9 micrograms per cubic meter | +2.2% |
| 2001 | 5 micrograms per cubic meter | +2.2% |
| 2002 | 4.9 micrograms per cubic meter | -2.0% |
| 2003 | 4.95 micrograms per cubic meter | +0.8% |
| 2004 | 4.62 micrograms per cubic meter | -6.6% |
| 2005 | 4.71 micrograms per cubic meter | +1.9% |
| 2006 | 4.68 micrograms per cubic meter | -0.7% |
| 2007 | 4.5 micrograms per cubic meter | -3.9% |
| 2008 | 4.42 micrograms per cubic meter | -1.8% |
| 2009 | 4.29 micrograms per cubic meter | -2.9% |
| 2010 | 4.15 micrograms per cubic meter | -3.2% |
| 2011 | 3.69 micrograms per cubic meter | -11.0% |
| 2012 | 4.12 micrograms per cubic meter | +11.6% |
| 2013 | 4.19 micrograms per cubic meter | +1.8% |
| 2014 | 4.3 micrograms per cubic meter | +2.5% |
| 2015 | 4.8 micrograms per cubic meter | +11.8% |
| 2016 | 4.37 micrograms per cubic meter | -9.0% |
| 2017 | 4.41 micrograms per cubic meter | +1.0% |
| 2018 | 4.21 micrograms per cubic meter | -4.6% |
| 2019 | 4.4 micrograms per cubic meter | +4.4% |
| 2020 | 4.16 micrograms per cubic meter | -5.3% |
| 2021 | 3.45 micrograms per cubic meter | -17.2% |
| 2022 | 4.94 micrograms per cubic meter | +43.2% |
| 2023 | 4.33 micrograms per cubic meter | -12.4% |
American Samoa compared with similar countries
- American Samoa's 4.33 micrograms per cubic meter is below the median for high income countries, which is 10.06 micrograms per cubic meter, 43% of the median. (70 countries reporting)
- American Samoa's 4.33 micrograms per cubic meter is below the median for East Asia & Pacific, which is 9.77 micrograms per cubic meter, 44% of the median. (33 countries reporting)
Biggest year-on-year movements
Years where Average annual exposure to PM2.5 air pollution in American Samoa changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2022 | +43.2% | 3.45 micrograms per cubic meter | 4.94 micrograms per cubic meter |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 4.74 micrograms per cubic meter | 4.56 micrograms per cubic meter | 4.81 micrograms per cubic meter | 10 |
| 2000s | 4.7 micrograms per cubic meter | 4.29 micrograms per cubic meter | 5 micrograms per cubic meter | 10 |
| 2010s | 4.26 micrograms per cubic meter | 3.69 micrograms per cubic meter | 4.8 micrograms per cubic meter | 10 |
| 2020s | 4.22 micrograms per cubic meter | 3.45 micrograms per cubic meter | 4.94 micrograms per cubic meter | 4 |
Countries ranked near American Samoa
- 191 Bermuda 4.63 micrograms per cubic meter compare
- 192 Samoa 4.58 micrograms per cubic meter compare
- 193 Finland 4.57 micrograms per cubic meter compare
- 195 Marshall Islands 4.1 micrograms per cubic meter compare
- 196 Kiribati 3.87 micrograms per cubic meter compare
- 197 Micronesia (country) 3.52 micrograms per cubic meter compare
More environment data for American Samoa
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.25 °C (2025)
- Temperature change 1 °C (2025)
- Cropland — Area per capita 0.06 ha/cap (2024)
- Total fisheries production 1,527 metric tons (2024)
- Arable land — Area 1.68 1000 ha (2024)
- Arable land — Share in Agricultural land 62.07 % (2024)
- Permanent crops — Area 0.99 1000 ha (2024)
- Permanent meadows and pastures — Share in Agricultural land 1.26 % (2024)
- Pesticides (total) — Import value 40.9 1000 USD (2024)
Frequently asked questions
- What is average annual exposure to pm2.5 air pollution in American Samoa?
- Average annual exposure to pm2.5 air pollution in American Samoa was 4.33 micrograms per cubic meter in 2023, according to Global Burden of Disease Study 2023, Institute for Health Metrics and Evaluation (IHME), via World Bank (2026) – processed by Our World in Data.
- What is the highest average annual exposure to pm2.5 air pollution recorded in American Samoa?
- The highest recorded value was 5 micrograms per cubic meter in 2001.
- What is the lowest average annual exposure to pm2.5 air pollution recorded in American Samoa?
- The lowest recorded value was 3.45 micrograms per cubic meter in 2021.
- How does American Samoa rank for average annual exposure to pm2.5 air pollution?
- American Samoa ranks 194th out of 200 countries with data for 2023.
- Is average annual exposure to pm2.5 air pollution rising or falling in American Samoa?
- Over the last ten years it is up 3.2%. The long-run trend across the full record is falling.
- Where does this American Samoa data come from?
- The figures 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 part of Average annual exposure to PM2.5 air pollution. Statizoid updates them automatically from the source API.
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CSV · JSON — 34 observations, free to reuse under CC BY 4.0 (Our World in Data).
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.