Ozone (O₃) concentration in Tonga
Tonga: Ozone (O₃) concentration was 39 ppb in 2015. ▬ Flat
Ozone (O₃) concentration in Tonga, 1990–2015
Source: Health Effects Institute (2017) – processed by Our World in Data. Measured in ppb.
Analysis
In 2015, ozone (o₃) concentration in Tonga stood at 39 ppb. That is the highest value across all 7 years on record.
Compared with earlier readings it is up 2.6% over ten years.
Over the whole period, ozone (o₃) concentration in Tonga peaked at 39 ppb in 2013 and was at its lowest, 38 ppb, in 1990.
Tonga ranks 169th of 187 countries on this measure, in the bottom quarter.
Ozone (O₃) concentration in Tonga, year by year
| Year | ppb | Change |
|---|---|---|
| 1990 | 38 ppb | — |
| 1995 | 38 ppb | +0.0% |
| 2000 | 38 ppb | +0.0% |
| 2005 | 38 ppb | +0.0% |
| 2010 | 38 ppb | +0.0% |
| 2013 | 39 ppb | +2.6% |
| 2015 | 39 ppb | +0.0% |
Tonga compared with similar countries
- Tonga's 39 ppb is below the median for upper middle income countries, which is 53 ppb, 74% of the median. (57 countries reporting)
- Tonga's 39 ppb is below the median for East Asia & Pacific, which is 44 ppb, 89% of the median. (25 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 38 ppb | 38 ppb | 38 ppb | 2 |
| 2000s | 38 ppb | 38 ppb | 38 ppb | 2 |
| 2010s | 38.67 ppb | 38 ppb | 39 ppb | 3 |
Countries ranked near Tonga
- 169 Barbados 39 ppb compare
- 169 Grenada 39 ppb compare
- 169 Saint Vincent and the Grenadines 39 ppb compare
- 169 Trinidad and Tobago 39 ppb compare
More environment data for Tonga
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.234 °C (2025)
- Temperature change 0.858 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 3.06 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 0.1689 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), annual 0 % change on previous year (2024)
Frequently asked questions
- What is ozone (o₃) concentration in Tonga?
- Ozone (o₃) concentration in Tonga was 39 ppb in 2015, according to Health Effects Institute (2017) – processed by Our World in Data.
- What is the highest ozone (o₃) concentration recorded in Tonga?
- The highest recorded value was 39 ppb in 2013.
- What is the lowest ozone (o₃) concentration recorded in Tonga?
- The lowest recorded value was 38 ppb in 1990.
- How does Tonga rank for ozone (o₃) concentration?
- Tonga ranks 169th out of 187 countries with data for 2015.
- Is ozone (o₃) concentration rising or falling in Tonga?
- Over the last ten years it is up 2.6%. The long-run trend across the full record is flat.
- Where does this Tonga data come from?
- The figures come from Health Effects Institute (2017) – processed by Our World in Data, published as part of Ozone (O₃) concentration. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 7 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Population-weighted average ozone (O₃) concentrations in parts per billion (ppb). Local concentrations of ozone are recorded and estimated at a 11x11km resolution. These values are subsequently weighted by population-density for calculation of nation-level average concentrations.