Exposure to outdoor air pollution in Tonga
Tonga: Exposure to outdoor air pollution was 3.8 µg/m³ in 2024. ▼ Falling
Exposure to outdoor air pollution in Tonga, 1998–2024
Source: SatPM, Atmospheric Composition Analysis Group, Washington University in St. Louis (2026) – with minor processing by Our World in Data. Measured in µg/m³.
Analysis
The most recent figure for exposure to outdoor air pollution in Tonga is 3.8 µg/m³, measured in 2024.
The figure is down 5.0% on the previous year and up 11.8% over ten years.
Over the whole period, exposure to outdoor air pollution in Tonga peaked at 4.7 µg/m³ in 2008 and was at its lowest, 3.2 µg/m³, in 2016.
That places Tonga 226th out of 241 countries with data for 2024, putting it in the bottom quarter.
The long-run direction has been consistently falling across the 27 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 3.85 µg/m³ | 3.8 µg/m³ | 3.9 µg/m³ | 2 |
| 2000s | 4.11 µg/m³ | 3.7 µg/m³ | 4.7 µg/m³ | 10 |
| 2010s | 3.68 µg/m³ | 3.2 µg/m³ | 4.3 µg/m³ | 10 |
| 2020s | 3.88 µg/m³ | 3.5 µg/m³ | 4.5 µg/m³ | 5 |
Countries ranked near Tonga
- 225 Bermuda 3.9 µg/m³ compare
- 226 American Samoa 3.8 µg/m³ compare
- 226 Nauru 3.8 µg/m³ compare
- 229 Christmas Island 3.7 µg/m³ compare
- 229 Kiribati 3.7 µg/m³ compare
More environment data for Tonga
- Total greenhouse gas emissions excluding LULUCF 0.2929 Mt CO2e (2024)
- Total greenhouse gas emissions excluding LULUCF per capita 2.81 t CO2e/capita (2024)
- Methane (CH4) emissions from Agriculture 0.0593 Mt CO2e (2024)
- Methane (CH4) emissions from Building (Energy) 0.0003 Mt CO2e (2024)
- Methane (CH4) emissions from Fugitive Emissions (Energy) 0.0007 Mt CO2e (2024)
- Methane (CH4) emissions from Industrial Combustion (Energy) 0 Mt CO2e (2024)
- Methane (CH4) emissions (total) excluding LULUCF 0.0975 Mt CO2e (2024)
- Methane (CH4) emissions from Power Industry (Energy) 0 Mt CO2e (2024)
- Methane (CH4) emissions from Transport (Energy) 0.0002 Mt CO2e (2024)
- Methane (CH4) emissions from Waste 0.037 Mt CO2e (2024)
Frequently asked questions
- What is exposure to outdoor air pollution in Tonga?
- Exposure to outdoor air pollution in Tonga was 3.8 µg/m³ in 2024, according to SatPM, Atmospheric Composition Analysis Group, Washington University in St. Louis (2026) – with minor processing by Our World in Data.
- What is the highest exposure to outdoor air pollution recorded in Tonga?
- The highest recorded value was 4.7 µg/m³ in 2008.
- What is the lowest exposure to outdoor air pollution recorded in Tonga?
- The lowest recorded value was 3.2 µg/m³ in 2016.
- How does Tonga rank for exposure to outdoor air pollution?
- Tonga ranks 226th out of 241 countries with data for 2024.
- Is exposure to outdoor air pollution rising or falling in Tonga?
- Over the last ten years it is up 11.8%. The long-run trend across the full record is falling.
- Where does this Tonga data come from?
- The figures come from SatPM, Atmospheric Composition Analysis Group, Washington University in St. Louis (2026) – with minor processing by Our World in Data, published as part of Exposure to outdoor air pollution. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 27 observations, free to reuse under CC BY 4.0 (Our World in Data).
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.