PM2.5 air pollution, mean annual exposure in Liberia
Liberia: PM2.5 air pollution, mean annual exposure was 17.92 micrograms per cubic meter in 2023. ▲ Rising
PM2.5 air pollution, mean annual exposure in Liberia, 1990–2023
Source: Global Burden of Disease Study 2023 (GBD 2023) Air Pollution Exposure Estimates and Risk Curves 1990-2023, GBD Collaborator Network. Measured in micrograms per cubic meter.
Analysis
In 2023, pm2.5 air pollution, mean annual exposure in Liberia stood at 17.92 micrograms per cubic meter.
The figure is down 0.6% on the previous year and up 3.5% over ten years.
Over the whole period, pm2.5 air pollution, mean annual exposure in Liberia peaked at 23.57 micrograms per cubic meter in 2015 and was at its lowest, 15.51 micrograms per cubic meter, in 1995.
That places Liberia 99th out of 200 countries with data for 2023, putting it in the middle of the range.
The long-run direction has been consistently rising across the 34 years of available data.
PM2.5 air pollution, mean annual exposure in Liberia, year by year
| Year | micrograms per cubic meter | Change |
|---|---|---|
| 1990 | 18.72 micrograms per cubic meter | — |
| 1991 | 17.63 micrograms per cubic meter | -5.8% |
| 1992 | 17.66 micrograms per cubic meter | +0.2% |
| 1993 | 17.69 micrograms per cubic meter | +0.2% |
| 1994 | 17.72 micrograms per cubic meter | +0.2% |
| 1995 | 15.51 micrograms per cubic meter | -12.5% |
| 1996 | 17.79 micrograms per cubic meter | +14.7% |
| 1997 | 17.82 micrograms per cubic meter | +0.2% |
| 1998 | 17.85 micrograms per cubic meter | +0.2% |
| 1999 | 17.88 micrograms per cubic meter | +0.2% |
| 2000 | 19.04 micrograms per cubic meter | +6.5% |
| 2001 | 16.14 micrograms per cubic meter | -15.3% |
| 2002 | 18.74 micrograms per cubic meter | +16.1% |
| 2003 | 15.54 micrograms per cubic meter | -17.1% |
| 2004 | 23.23 micrograms per cubic meter | +49.5% |
| 2005 | 20.64 micrograms per cubic meter | -11.1% |
| 2006 | 19.54 micrograms per cubic meter | -5.3% |
| 2007 | 20 micrograms per cubic meter | +2.4% |
| 2008 | 21.21 micrograms per cubic meter | +6.0% |
| 2009 | 20.56 micrograms per cubic meter | -3.1% |
| 2010 | 16.99 micrograms per cubic meter | -17.4% |
| 2011 | 21.47 micrograms per cubic meter | +26.4% |
| 2012 | 18.66 micrograms per cubic meter | -13.1% |
| 2013 | 17.31 micrograms per cubic meter | -7.2% |
| 2014 | 16.21 micrograms per cubic meter | -6.4% |
| 2015 | 23.57 micrograms per cubic meter | +45.4% |
| 2016 | 20.9 micrograms per cubic meter | -11.3% |
| 2017 | 18.74 micrograms per cubic meter | -10.3% |
| 2018 | 18.56 micrograms per cubic meter | -1.0% |
| 2019 | 17.96 micrograms per cubic meter | -3.2% |
| 2020 | 19.13 micrograms per cubic meter | +6.6% |
| 2021 | 16.86 micrograms per cubic meter | -11.9% |
| 2022 | 18.03 micrograms per cubic meter | +6.9% |
| 2023 | 17.92 micrograms per cubic meter | -0.6% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 17.63 micrograms per cubic meter | 15.51 micrograms per cubic meter | 18.72 micrograms per cubic meter | 10 |
| 2000s | 19.46 micrograms per cubic meter | 15.54 micrograms per cubic meter | 23.23 micrograms per cubic meter | 10 |
| 2010s | 19.03 micrograms per cubic meter | 16.21 micrograms per cubic meter | 23.57 micrograms per cubic meter | 10 |
| 2020s | 17.99 micrograms per cubic meter | 16.86 micrograms per cubic meter | 19.13 micrograms per cubic meter | 4 |
Countries ranked near Liberia
- 96 Somalia 18.54 micrograms per cubic meter compare
- 97 Montenegro 18.45 micrograms per cubic meter compare
- 98 Colombia 18.36 micrograms per cubic meter compare
- 100 Costa Rica 17.7 micrograms per cubic meter compare
- 101 Guyana 16.95 micrograms per cubic meter compare
- 102 Belize 16.76 micrograms per cubic meter compare
More urban development data for Liberia
- Population in the largest city 55.8% (2025)
- Population density 57.03 people per sq. km of land area (2023)
- Population in urban agglomerations of more than 1 million, per capita 0.3131 units per person (2025)
- Population in urban agglomerations of more than 1 million 1.79 million (2025)
- Population in urban agglomerations of more than 1 million, annual 3.42 % change on previous year (2025)
- Population in urban agglomerations of more than 1 million, per unit 0.0003 units per US$ of GDP (2025)
- Population in urban agglomerations of more than 1 million, per square 17.42 units per square kilometre (2023)
- Population in largest city 1.79 million (2025)
- Africa's Development Dynamics (AfDD) Table 23 - Ecological 23.23 Hectares (2020)
- PM2.5 air pollution, population exposed to levels exceeding WHO 100.0% (2017)
Frequently asked questions
- What is pm2.5 air pollution, mean annual exposure in Liberia?
- Pm2.5 air pollution, mean annual exposure in Liberia was 17.92 micrograms per cubic meter in 2023, according to Global Burden of Disease Study 2023 (GBD 2023) Air Pollution Exposure Estimates and Risk Curves 1990-2023, GBD Collaborator Network.
- What is the highest pm2.5 air pollution, mean annual exposure recorded in Liberia?
- The highest recorded value was 23.57 micrograms per cubic meter in 2015.
- What is the lowest pm2.5 air pollution, mean annual exposure recorded in Liberia?
- The lowest recorded value was 15.51 micrograms per cubic meter in 1995.
- How does Liberia rank for pm2.5 air pollution, mean annual exposure?
- Liberia ranks 99th out of 200 countries with data for 2023.
- Is pm2.5 air pollution, mean annual exposure rising or falling in Liberia?
- Over the last ten years it is up 3.5%. The long-run trend across the full record is rising.
- Where does this Liberia data come from?
- The figures come from Global Burden of Disease Study 2023 (GBD 2023) Air Pollution Exposure Estimates and Risk Curves 1990-2023, GBD Collaborator Network, published as part of PM2.5 air pollution, mean annual exposure (micrograms per cubic meter). Statizoid updates them automatically from the source API.
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About this data
Population-weighted exposure to ambient PM2.5 pollution is defined as the average level of exposure of a nation's population to concentrations of suspended particles measuring less than 2.5 microns in aerodynamic diameter, which are capable of penetrating deep into the respiratory tract and causing severe health damage. Exposure is calculated by weighting mean annual concentrations of PM2.5 by population in both urban and rural areas.