Ozone (O₃) concentration in Lesotho
Lesotho: Ozone (O₃) concentration was 55 ppb in 2015. ▲ Rising
Ozone (O₃) concentration in Lesotho, 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 Lesotho is 55 ppb, measured in 2015. That is the highest value across all 7 years on record.
The figure is up 1.9% over ten years.
Over the whole period, ozone (o₃) concentration in Lesotho peaked at 55 ppb in 2013 and was at its lowest, 52 ppb, in 1990.
Lesotho ranks 92nd of 187 countries on this measure, in the middle of the range.
Ozone (O₃) concentration in Lesotho, year by year
| Year | ppb | Change |
|---|---|---|
| 1990 | 52 ppb | — |
| 1995 | 53 ppb | +1.9% |
| 2000 | 53 ppb | +0.0% |
| 2005 | 54 ppb | +1.9% |
| 2010 | 54 ppb | +0.0% |
| 2013 | 55 ppb | +1.9% |
| 2015 | 55 ppb | +0.0% |
Lesotho compared with similar countries
- Lesotho's 55 ppb is below the median for lower middle income countries, which is 62 ppb, 89% of the median. (45 countries reporting)
- Lesotho's 55 ppb is above the median for Sub-Saharan Africa, which is 53 ppb, 1.0× the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 52.5 ppb | 52 ppb | 53 ppb | 2 |
| 2000s | 53.5 ppb | 53 ppb | 54 ppb | 2 |
| 2010s | 54.67 ppb | 54 ppb | 55 ppb | 3 |
Countries ranked near Lesotho
More environment data for Lesotho
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.284 °C (2025)
- Temperature change 0.783 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual -0.521 % 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 -2.27 % 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 -0.4197 % change on previous year (2024)
Frequently asked questions
- What is ozone (o₃) concentration in Lesotho?
- Ozone (o₃) concentration in Lesotho was 55 ppb in 2015, according to Health Effects Institute (2017) – processed by Our World in Data.
- What is the highest ozone (o₃) concentration recorded in Lesotho?
- The highest recorded value was 55 ppb in 2013.
- What is the lowest ozone (o₃) concentration recorded in Lesotho?
- The lowest recorded value was 52 ppb in 1990.
- How does Lesotho rank for ozone (o₃) concentration?
- Lesotho ranks 92nd out of 187 countries with data for 2015.
- Is ozone (o₃) concentration rising or falling in Lesotho?
- Over the last ten years it is up 1.9%. The long-run trend across the full record is rising.
- Where does this Lesotho 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.