Moldova vs Sierra Leone: Ozone (O₃) concentration
Moldova
58 ppb
in 2015
Sierra Leone
58 ppb
in 2015
Moldova rank
79th
Sierra Leone rank
79th
Ozone (O₃) concentration over time
- Moldova
- Sierra Leone
How they compare
Moldova currently reports 58 ppb against 58 ppb in Sierra Leone, a difference of 0 ppb.
The two have swapped places 1 time across 7 shared years of data; in 1990 it was Moldova ahead.
Moldova ranks 79th and Sierra Leone ranks 79th of 187 countries.
Moldova has averaged higher in every one of the 3 decades both report.
Head to head by decade
| Decade | Moldova | Sierra Leone | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 61 ppb | 57.5 ppb | 3.5 ppb | Moldova |
| 2000s | 58.5 ppb | 58 ppb | 0.5 ppb | Moldova |
| 2010s | 58 ppb | 58 ppb | 0 ppb | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher ozone (o₃) concentration, Moldova or Sierra Leone?
- Moldova, at 58 ppb against 58 ppb in Sierra Leone as of 2015.
- What is the difference in ozone (o₃) concentration between Moldova and Sierra Leone?
- 0 ppb, with Moldova ahead.
- How many years of comparable data are there for Moldova and Sierra Leone?
- 7 years are reported by both, from 1990 to 2015.
- How do Moldova and Sierra Leone rank globally for ozone (o₃) concentration?
- Moldova ranks 79th and Sierra Leone ranks 79th of 187 countries.
- Where does this data come from?
- Health Effects Institute (2017) – processed by Our World in Data, published as Ozone (O₃) concentration. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
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.