Ozone (O₃) concentration in Comoros
Comoros: Ozone (O₃) concentration was 42 ppb in 2015. ▲ Rising
Ozone (O₃) concentration in Comoros, 1990–2015
Source: Health Effects Institute (2017) – processed by Our World in Data. Measured in ppb.
Analysis
Comoros recorded 42 ppb for ozone (o₃) concentration in 2015. That is the highest value across all 7 years on record.
Compared with earlier readings it is up 2.4% on the previous year and up 2.4% over ten years.
Over the whole period, ozone (o₃) concentration in Comoros peaked at 42 ppb in 2015 and was at its lowest, 39 ppb, in 1990.
That places Comoros 155th out of 187 countries with data for 2015, putting it in the bottom quarter.
Ozone (O₃) concentration in Comoros, year by year
| Year | ppb | Change |
|---|---|---|
| 1990 | 39 ppb | — |
| 1995 | 39 ppb | +0.0% |
| 2000 | 40 ppb | +2.6% |
| 2005 | 41 ppb | +2.5% |
| 2010 | 41 ppb | +0.0% |
| 2013 | 41 ppb | +0.0% |
| 2015 | 42 ppb | +2.4% |
Comoros compared with similar countries
- Comoros's 42 ppb is below the median for lower middle income countries, which is 62 ppb, 68% of the median. (45 countries reporting)
- Comoros's 42 ppb is below the median for Sub-Saharan Africa, which is 53 ppb, 79% of the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 39 ppb | 39 ppb | 39 ppb | 2 |
| 2000s | 40.5 ppb | 40 ppb | 41 ppb | 2 |
| 2010s | 41.33 ppb | 41 ppb | 42 ppb | 3 |
Countries ranked near Comoros
More environment data for Comoros
- Historical exposure to drought — Land soil moisture anomaly -9.29 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -6.9 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.264 °C (2025)
- Temperature change 1.59 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 1.33 % 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 % 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 Comoros?
- Ozone (o₃) concentration in Comoros was 42 ppb in 2015, according to Health Effects Institute (2017) – processed by Our World in Data.
- What is the highest ozone (o₃) concentration recorded in Comoros?
- The highest recorded value was 42 ppb in 2015.
- What is the lowest ozone (o₃) concentration recorded in Comoros?
- The lowest recorded value was 39 ppb in 1990.
- How does Comoros rank for ozone (o₃) concentration?
- Comoros ranks 155th out of 187 countries with data for 2015.
- Is ozone (o₃) concentration rising or falling in Comoros?
- Over the last ten years it is up 2.4%. The long-run trend across the full record is rising.
- Where does this Comoros 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.