Ozone (O₃) concentration in Tunisia
Tunisia: Ozone (O₃) concentration was 67 ppb in 2015. ▬ Flat
Ozone (O₃) concentration in Tunisia, 1990–2015
Source: Health Effects Institute (2017) – processed by Our World in Data. Measured in ppb.
Analysis
Tunisia recorded 67 ppb for ozone (o₃) concentration in 2015. That is the highest value across all 7 years on record.
Compared with earlier readings it is unchanged over ten years.
Over the whole period, ozone (o₃) concentration in Tunisia peaked at 67 ppb in 1995 and was at its lowest, 66 ppb, in 1990.
Tunisia ranks 34th of 187 countries on this measure, in the top quarter.
Ozone (O₃) concentration in Tunisia, year by year
| Year | ppb | Change |
|---|---|---|
| 1990 | 66 ppb | — |
| 1995 | 67 ppb | +1.5% |
| 2000 | 67 ppb | +0.0% |
| 2005 | 67 ppb | +0.0% |
| 2010 | 67 ppb | +0.0% |
| 2013 | 67 ppb | +0.0% |
| 2015 | 67 ppb | +0.0% |
Tunisia compared with similar countries
- Tunisia's 67 ppb is above the median for lower middle income countries, which is 62 ppb, 1.1× the median. (45 countries reporting)
- Tunisia's 67 ppb is below the median for Middle East, North Africa, Afghanistan & Pakistan, which is 70 ppb, 96% of the median. (23 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 66.5 ppb | 66 ppb | 67 ppb | 2 |
| 2000s | 67 ppb | 67 ppb | 67 ppb | 2 |
| 2010s | 67 ppb | 67 ppb | 67 ppb | 3 |
Countries ranked near Tunisia
More environment data for Tunisia
- Historical exposure to drought — Land soil moisture anomaly -14.25 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -6.62 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.421 °C (2025)
- Temperature change 2.02 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 2.34 % 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 -0.2204 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
Frequently asked questions
- What is ozone (o₃) concentration in Tunisia?
- Ozone (o₃) concentration in Tunisia was 67 ppb in 2015, according to Health Effects Institute (2017) – processed by Our World in Data.
- What is the highest ozone (o₃) concentration recorded in Tunisia?
- The highest recorded value was 67 ppb in 1995.
- What is the lowest ozone (o₃) concentration recorded in Tunisia?
- The lowest recorded value was 66 ppb in 1990.
- How does Tunisia rank for ozone (o₃) concentration?
- Tunisia ranks 34th out of 187 countries with data for 2015.
- Is ozone (o₃) concentration rising or falling in Tunisia?
- Over the last ten years it is unchanged. The long-run trend across the full record is flat.
- Where does this Tunisia 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.