Ozone (O₃) concentration in Bulgaria
Bulgaria: Ozone (O₃) concentration was 65 ppb in 2015. ▬ Flat
Ozone (O₃) concentration in Bulgaria, 1990–2015
Source: Health Effects Institute (2017) – processed by Our World in Data. Measured in ppb.
Analysis
Bulgaria recorded 65 ppb for ozone (o₃) concentration in 2015. That is the lowest 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 Bulgaria peaked at 66 ppb in 1990 and was at its lowest, 65 ppb, in 2005.
Bulgaria ranks 41st of 187 countries on this measure, in the top quarter.
Ozone (O₃) concentration in Bulgaria, year by year
| Year | ppb | Change |
|---|---|---|
| 1990 | 66 ppb | — |
| 1995 | 66 ppb | +0.0% |
| 2000 | 66 ppb | +0.0% |
| 2005 | 65 ppb | -1.5% |
| 2010 | 65 ppb | +0.0% |
| 2013 | 65 ppb | +0.0% |
| 2015 | 65 ppb | +0.0% |
Bulgaria compared with similar countries
- Bulgaria's 65 ppb is above the median for high income countries, which is 55 ppb, 1.2× the median. (59 countries reporting)
- Bulgaria's 65 ppb is above the median for Europe & Central Asia, which is 59 ppb, 1.1× the median. (50 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 66 ppb | 66 ppb | 66 ppb | 2 |
| 2000s | 65.5 ppb | 65 ppb | 66 ppb | 2 |
| 2010s | 65 ppb | 65 ppb | 65 ppb | 3 |
Countries ranked near Bulgaria
- 39 Ghana 66 ppb compare
- 39 North Macedonia 66 ppb compare
- 41 China 65 ppb compare
- 41 Croatia 65 ppb compare
- 41 Kyrgyzstan 65 ppb compare
More environment data for Bulgaria
- Historical exposure to drought — Land soil moisture anomaly -1.39 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -1.52 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.573 °C (2025)
- Temperature change 2.18 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual -6.02 % 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 -0.7509 % 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 Bulgaria?
- Ozone (o₃) concentration in Bulgaria was 65 ppb in 2015, according to Health Effects Institute (2017) – processed by Our World in Data.
- What is the highest ozone (o₃) concentration recorded in Bulgaria?
- The highest recorded value was 66 ppb in 1990.
- What is the lowest ozone (o₃) concentration recorded in Bulgaria?
- The lowest recorded value was 65 ppb in 2005.
- How does Bulgaria rank for ozone (o₃) concentration?
- Bulgaria ranks 41st out of 187 countries with data for 2015.
- Is ozone (o₃) concentration rising or falling in Bulgaria?
- Over the last ten years it is unchanged. The long-run trend across the full record is flat.
- Where does this Bulgaria 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.