Ozone (O₃) concentration in Iran
Iran: Ozone (O₃) concentration was 74 ppb in 2015. ▲ Rising
Ozone (O₃) concentration in Iran, 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 Iran is 74 ppb, measured in 2015. That is the highest value across all 7 years on record.
Compared with earlier readings it is up 1.4% over ten years.
Over the whole period, ozone (o₃) concentration in Iran peaked at 74 ppb in 2013 and was at its lowest, 70 ppb, in 1990.
That places Iran 12th out of 187 countries with data for 2015, putting it in the top 10%.
Ozone (O₃) concentration in Iran, year by year
| Year | ppb | Change |
|---|---|---|
| 1990 | 70 ppb | — |
| 1995 | 71 ppb | +1.4% |
| 2000 | 72 ppb | +1.4% |
| 2005 | 73 ppb | +1.4% |
| 2010 | 73 ppb | +0.0% |
| 2013 | 74 ppb | +1.4% |
| 2015 | 74 ppb | +0.0% |
Iran compared with similar countries
- Iran's 74 ppb is above the median for upper middle income countries, which is 53 ppb, 1.4× the median. (57 countries reporting)
- Iran's 74 ppb is above the median for Middle East, North Africa, Afghanistan & Pakistan, which is 70 ppb, 1.1× the median. (23 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 70.5 ppb | 70 ppb | 71 ppb | 2 |
| 2000s | 72.5 ppb | 72 ppb | 73 ppb | 2 |
| 2010s | 73.67 ppb | 73 ppb | 74 ppb | 3 |
Countries ranked near Iran
More environment data for Iran
- Historical exposure to drought — Land soil moisture anomaly -30.46 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -21.27 Percentage change (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 2.4 % 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 1.9 % 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 -0.0807 % change on previous year (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), per unit of 0 Mt CO2e per US$ of GDP (2024)
Frequently asked questions
- What is ozone (o₃) concentration in Iran?
- Ozone (o₃) concentration in Iran was 74 ppb in 2015, according to Health Effects Institute (2017) – processed by Our World in Data.
- What is the highest ozone (o₃) concentration recorded in Iran?
- The highest recorded value was 74 ppb in 2013.
- What is the lowest ozone (o₃) concentration recorded in Iran?
- The lowest recorded value was 70 ppb in 1990.
- How does Iran rank for ozone (o₃) concentration?
- Iran ranks 12th out of 187 countries with data for 2015.
- Is ozone (o₃) concentration rising or falling in Iran?
- Over the last ten years it is up 1.4%. The long-run trend across the full record is rising.
- Where does this Iran 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.