Ozone (O₃) concentration in Eswatini
Eswatini: Ozone (O₃) concentration was 51 ppb in 2015. ▲ Rising
Ozone (O₃) concentration in Eswatini, 1990–2015
Source: Health Effects Institute (2017) – processed by Our World in Data. Measured in ppb.
Analysis
The most recent figure for ozone (o₃) concentration in Eswatini is 51 ppb, measured in 2015. That is the highest value across all 7 years on record.
Compared with earlier readings it is up 4.1% over ten years.
Over the whole period, ozone (o₃) concentration in Eswatini peaked at 51 ppb in 2013 and was at its lowest, 48 ppb, in 1990.
Eswatini ranks 113th of 187 countries on this measure, in the middle of the range.
Ozone (O₃) concentration in Eswatini, year by year
| Year | ppb | Change |
|---|---|---|
| 1990 | 48 ppb | — |
| 1995 | 48 ppb | +0.0% |
| 2000 | 49 ppb | +2.1% |
| 2005 | 49 ppb | +0.0% |
| 2010 | 50 ppb | +2.0% |
| 2013 | 51 ppb | +2.0% |
| 2015 | 51 ppb | +0.0% |
Eswatini compared with similar countries
- Eswatini's 51 ppb is below the median for lower middle income countries, which is 62 ppb, 82% of the median. (45 countries reporting)
- Eswatini's 51 ppb is below the median for Sub-Saharan Africa, which is 53 ppb, 96% of the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 48 ppb | 48 ppb | 48 ppb | 2 |
| 2000s | 49 ppb | 49 ppb | 49 ppb | 2 |
| 2010s | 50.67 ppb | 50 ppb | 51 ppb | 3 |
Countries ranked near Eswatini
More environment data for Eswatini
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.321 °C (2025)
- Temperature change 1.02 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 0.2772 % 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 -2.19 % 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 Eswatini?
- Ozone (o₃) concentration in Eswatini was 51 ppb in 2015, according to Health Effects Institute (2017) – processed by Our World in Data.
- What is the highest ozone (o₃) concentration recorded in Eswatini?
- The highest recorded value was 51 ppb in 2013.
- What is the lowest ozone (o₃) concentration recorded in Eswatini?
- The lowest recorded value was 48 ppb in 1990.
- How does Eswatini rank for ozone (o₃) concentration?
- Eswatini ranks 113th out of 187 countries with data for 2015.
- Is ozone (o₃) concentration rising or falling in Eswatini?
- Over the last ten years it is up 4.1%. The long-run trend across the full record is rising.
- Where does this Eswatini 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.