Ozone (O₃) concentration in Nepal
Nepal: Ozone (O₃) concentration was 78 ppb in 2015. ▲ Rising
Ozone (O₃) concentration in Nepal, 1990–2015
Source: Health Effects Institute (2017) – processed by Our World in Data. Measured in ppb.
Analysis
Nepal recorded 78 ppb for ozone (o₃) concentration in 2015. That is the highest value across all 7 years on record.
The figure is up 2.6% on the previous year and up 13.0% over ten years.
Over the whole period, ozone (o₃) concentration in Nepal peaked at 78 ppb in 2015 and was at its lowest, 62 ppb, in 1990.
That places Nepal 7th out of 187 countries with data for 2015, putting it in the top 10%.
Ozone (O₃) concentration in Nepal, year by year
| Year | ppb | Change |
|---|---|---|
| 1990 | 62 ppb | — |
| 1995 | 63 ppb | +1.6% |
| 2000 | 66 ppb | +4.8% |
| 2005 | 69 ppb | +4.5% |
| 2010 | 73 ppb | +5.8% |
| 2013 | 76 ppb | +4.1% |
| 2015 | 78 ppb | +2.6% |
Nepal compared with similar countries
- Nepal's 78 ppb is above the median for lower middle income countries, which is 62 ppb, 1.3× the median. (45 countries reporting)
- Nepal's 78 ppb is above the median for South Asia, which is 71.5 ppb, 1.1× the median. (6 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 62.5 ppb | 62 ppb | 63 ppb | 2 |
| 2000s | 67.5 ppb | 66 ppb | 69 ppb | 2 |
| 2010s | 75.67 ppb | 73 ppb | 78 ppb | 3 |
Countries ranked near Nepal
More environment data for Nepal
- Historical exposure to drought — Land soil moisture anomaly 2.73 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly 2.41 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.265 °C (2025)
- Temperature change 1.43 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual -1.54 % 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 -6.53 % 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 Nepal?
- Ozone (o₃) concentration in Nepal was 78 ppb in 2015, according to Health Effects Institute (2017) – processed by Our World in Data.
- What is the highest ozone (o₃) concentration recorded in Nepal?
- The highest recorded value was 78 ppb in 2015.
- What is the lowest ozone (o₃) concentration recorded in Nepal?
- The lowest recorded value was 62 ppb in 1990.
- How does Nepal rank for ozone (o₃) concentration?
- Nepal ranks 7th out of 187 countries with data for 2015.
- Is ozone (o₃) concentration rising or falling in Nepal?
- Over the last ten years it is up 13.0%. The long-run trend across the full record is rising.
- Where does this Nepal 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.