Exposure to outdoor air pollution in San Marino
San Marino: Exposure to outdoor air pollution was 12.9 µg/m³ in 2024. ▼ Falling
Exposure to outdoor air pollution in San Marino, 1998–2024
Source: SatPM, Atmospheric Composition Analysis Group, Washington University in St. Louis (2026) – with minor processing by Our World in Data. Measured in µg/m³.
Analysis
The most recent figure for exposure to outdoor air pollution in San Marino is 12.9 µg/m³, measured in 2024.
Compared with earlier readings it is up 6.6% on the previous year and down 1.5% over ten years.
Over the whole period, exposure to outdoor air pollution in San Marino peaked at 22.1 µg/m³ in 2006 and was at its lowest, 11.5 µg/m³, in 2021.
San Marino ranks 137th of 241 countries on this measure, in the middle of the range.
The long-run direction has been consistently falling across the 27 years of available data.
Exposure to outdoor air pollution in San Marino, year by year
| Year | µg/m³ | Change |
|---|---|---|
| 1998 | 16.5 µg/m³ | — |
| 1999 | 16.2 µg/m³ | -1.8% |
| 2000 | 17.4 µg/m³ | +7.4% |
| 2001 | 16.2 µg/m³ | -6.9% |
| 2002 | 18.4 µg/m³ | +13.6% |
| 2003 | 20.1 µg/m³ | +9.2% |
| 2004 | 16.7 µg/m³ | -16.9% |
| 2005 | 17.8 µg/m³ | +6.6% |
| 2006 | 22.1 µg/m³ | +24.2% |
| 2007 | 18.6 µg/m³ | -15.8% |
| 2008 | 15.6 µg/m³ | -16.1% |
| 2009 | 16.1 µg/m³ | +3.2% |
| 2010 | 15.8 µg/m³ | -1.9% |
| 2011 | 17.6 µg/m³ | +11.4% |
| 2012 | 16.3 µg/m³ | -7.4% |
| 2013 | 14.9 µg/m³ | -8.6% |
| 2014 | 13.1 µg/m³ | -12.1% |
| 2015 | 15.9 µg/m³ | +21.4% |
| 2016 | 13.7 µg/m³ | -13.8% |
| 2017 | 13.8 µg/m³ | +0.7% |
| 2018 | 13.3 µg/m³ | -3.6% |
| 2019 | 12.5 µg/m³ | -6.0% |
| 2020 | 12.8 µg/m³ | +2.4% |
| 2021 | 11.5 µg/m³ | -10.2% |
| 2022 | 13.1 µg/m³ | +13.9% |
| 2023 | 12.1 µg/m³ | -7.6% |
| 2024 | 12.9 µg/m³ | +6.6% |
San Marino compared with similar countries
- San Marino's 12.9 µg/m³ is above the median for high income countries, which is 10.3 µg/m³, 1.3× the median. (85 countries reporting)
- San Marino's 12.9 µg/m³ is above the median for Europe & Central Asia, which is 12.8 µg/m³, 1.0× the median. (56 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 16.35 µg/m³ | 16.2 µg/m³ | 16.5 µg/m³ | 2 |
| 2000s | 17.9 µg/m³ | 15.6 µg/m³ | 22.1 µg/m³ | 10 |
| 2010s | 14.69 µg/m³ | 12.5 µg/m³ | 17.6 µg/m³ | 10 |
| 2020s | 12.48 µg/m³ | 11.5 µg/m³ | 13.1 µg/m³ | 5 |
Countries ranked near San Marino
More environment data for San Marino
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Historical exposure to drought — Land soil moisture anomaly 6.82 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly 6.82 Percentage change (2025)
- Temperature change 2.11 °C (2025)
- Standard Deviation 0.361 °C (2025)
- Cropland — Share in Land area 25.65 % (2024)
- Permanent crops — Area 0.3125 1000 ha (2024)
- Agricultural land — Share in Land area 42.33 % (2024)
- Cropland — Area 1.57 1000 ha (2024)
- Cropland — Share in Agricultural land 60.59 % (2024)
Frequently asked questions
- What is exposure to outdoor air pollution in San Marino?
- Exposure to outdoor air pollution in San Marino was 12.9 µg/m³ in 2024, according to SatPM, Atmospheric Composition Analysis Group, Washington University in St. Louis (2026) – with minor processing by Our World in Data.
- What is the highest exposure to outdoor air pollution recorded in San Marino?
- The highest recorded value was 22.1 µg/m³ in 2006.
- What is the lowest exposure to outdoor air pollution recorded in San Marino?
- The lowest recorded value was 11.5 µg/m³ in 2021.
- How does San Marino rank for exposure to outdoor air pollution?
- San Marino ranks 137th out of 241 countries with data for 2024.
- Is exposure to outdoor air pollution rising or falling in San Marino?
- Over the last ten years it is down 1.5%. The long-run trend across the full record is falling.
- Where does this San Marino data come from?
- The figures come from SatPM, Atmospheric Composition Analysis Group, Washington University in St. Louis (2026) – with minor processing by Our World in Data, published as part of Exposure to outdoor air pollution. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 27 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Annual population-weighted average concentration of fine particulate matter (PM2.5) in the air, measured in micrograms per cubic meter (µg/m³). Fine particulate matter (PM2.5) are particles with a diameter of 2.5 micrometers or less, which can pose significant health risks.