Ozone (O₃) concentration in Laos
Laos: Ozone (O₃) concentration was 62 ppb in 2015. ▲ Rising
Ozone (O₃) concentration in Laos, 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 Laos is 62 ppb, measured in 2015. That is the highest value across all 7 years on record.
That represents a change of up 1.6% on the previous year and up 14.8% over ten years.
Over the whole period, ozone (o₃) concentration in Laos peaked at 62 ppb in 2015 and was at its lowest, 48 ppb, in 1990.
Laos ranks 55th of 187 countries on this measure, in the middle of the range.
Ozone (O₃) concentration in Laos, year by year
| Year | ppb | Change |
|---|---|---|
| 1990 | 48 ppb | — |
| 1995 | 49 ppb | +2.1% |
| 2000 | 51 ppb | +4.1% |
| 2005 | 54 ppb | +5.9% |
| 2010 | 58 ppb | +7.4% |
| 2013 | 61 ppb | +5.2% |
| 2015 | 62 ppb | +1.6% |
Laos compared with similar countries
- Laos's 62 ppb is above the median for lower middle income countries, which is 62 ppb, 1.0× the median. (45 countries reporting)
- Laos's 62 ppb is above the median for East Asia & Pacific, which is 44 ppb, 1.4× the median. (25 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 48.5 ppb | 48 ppb | 49 ppb | 2 |
| 2000s | 52.5 ppb | 51 ppb | 54 ppb | 2 |
| 2010s | 60.33 ppb | 58 ppb | 62 ppb | 3 |
Countries ranked near Laos
- 52 Afghanistan 63 ppb compare
- 52 Democratic Republic of Congo 63 ppb compare
- 52 Uzbekistan 63 ppb compare
- 55 Armenia 62 ppb compare
- 55 Bolivia 62 ppb compare
- 55 Congo 62 ppb compare
More environment data for Laos
- Historical exposure to drought — Land soil moisture anomaly -1.77 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -1.51 Percentage change (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 0.9142 % 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 0.4183 % 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 % 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 Laos?
- Ozone (o₃) concentration in Laos was 62 ppb in 2015, according to Health Effects Institute (2017) – processed by Our World in Data.
- What is the highest ozone (o₃) concentration recorded in Laos?
- The highest recorded value was 62 ppb in 2015.
- What is the lowest ozone (o₃) concentration recorded in Laos?
- The lowest recorded value was 48 ppb in 1990.
- How does Laos rank for ozone (o₃) concentration?
- Laos ranks 55th out of 187 countries with data for 2015.
- Is ozone (o₃) concentration rising or falling in Laos?
- Over the last ten years it is up 14.8%. The long-run trend across the full record is rising.
- Where does this Laos 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.