Ozone (O₃) concentration in Seychelles
Seychelles: Ozone (O₃) concentration was 34 ppb in 2015. ▬ Flat
Ozone (O₃) concentration in Seychelles, 1990–2015
Source: Health Effects Institute (2017) – processed by Our World in Data. Measured in ppb.
Analysis
In 2015, ozone (o₃) concentration in Seychelles stood at 34 ppb. That is the highest value across all 7 years on record.
The figure is up 3.0% over ten years.
Over the whole period, ozone (o₃) concentration in Seychelles peaked at 34 ppb in 2010 and was at its lowest, 33 ppb, in 1990.
That places Seychelles 179th out of 187 countries with data for 2015, putting it in the bottom quarter.
Ozone (O₃) concentration in Seychelles, year by year
| Year | ppb | Change |
|---|---|---|
| 1990 | 33 ppb | — |
| 1995 | 33 ppb | +0.0% |
| 2000 | 33 ppb | +0.0% |
| 2005 | 33 ppb | +0.0% |
| 2010 | 34 ppb | +3.0% |
| 2013 | 34 ppb | +0.0% |
| 2015 | 34 ppb | +0.0% |
Seychelles compared with similar countries
- Seychelles's 34 ppb is below the median for high income countries, which is 55 ppb, 62% of the median. (59 countries reporting)
- Seychelles's 34 ppb is below the median for Sub-Saharan Africa, which is 53 ppb, 64% of the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 33 ppb | 33 ppb | 33 ppb | 2 |
| 2000s | 33 ppb | 33 ppb | 33 ppb | 2 |
| 2010s | 34 ppb | 34 ppb | 34 ppb | 3 |
Countries ranked near Seychelles
More environment data for Seychelles
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.258 °C (2025)
- Temperature change 1.05 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 4.41 % 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 4.55 % 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 Seychelles?
- Ozone (o₃) concentration in Seychelles was 34 ppb in 2015, according to Health Effects Institute (2017) – processed by Our World in Data.
- What is the highest ozone (o₃) concentration recorded in Seychelles?
- The highest recorded value was 34 ppb in 2010.
- What is the lowest ozone (o₃) concentration recorded in Seychelles?
- The lowest recorded value was 33 ppb in 1990.
- How does Seychelles rank for ozone (o₃) concentration?
- Seychelles ranks 179th out of 187 countries with data for 2015.
- Is ozone (o₃) concentration rising or falling in Seychelles?
- Over the last ten years it is up 3.0%. The long-run trend across the full record is flat.
- Where does this Seychelles 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.