Particulate matter exposure in 1990 vs. 2017 in Sierra Leone
Sierra Leone: Particulate matter exposure in 1990 vs. 2017 was 22.46 micrograms per cubic meter in 2023. ▬ Flat
Latest (2023)
22.46 micrograms per cubic meter
Change on year
up 0.4%
World rank
69th
of 200 countries
All-time high
26.7 micrograms per cubic meter
in 2004
All-time low
19.76 micrograms per cubic meter
in 2003
Years of data
34
1990–2023
Particulate matter exposure in 1990 vs. 2017 in Sierra Leone, 1990–2023
Source: Global Burden of Disease Study 2023, Institute for Health Metrics and Evaluation (IHME), via World Bank (2026) – processed by Our World in Data. Measured in micrograms per cubic meter.
Analysis
Sierra Leone recorded 22.46 micrograms per cubic meter for particulate matter exposure in 1990 vs. 2017 in 2023.
That represents a change of up 0.4% on the previous year and up 8.7% over ten years.
Over the whole period, particulate matter exposure in 1990 vs. 2017 in Sierra Leone peaked at 26.7 micrograms per cubic meter in 2004 and was at its lowest, 19.76 micrograms per cubic meter, in 2003.
Sierra Leone ranks 69th of 200 countries on this measure, in the middle of the range.
Particulate matter exposure in 1990 vs. 2017 in Sierra Leone, year by year
| Year | micrograms per cubic meter | Change |
|---|---|---|
| 1990 | 23.89 micrograms per cubic meter | — |
| 1991 | 23.04 micrograms per cubic meter | -3.6% |
| 1992 | 23 micrograms per cubic meter | -0.2% |
| 1993 | 22.96 micrograms per cubic meter | -0.2% |
| 1994 | 22.92 micrograms per cubic meter | -0.2% |
| 1995 | 21.25 micrograms per cubic meter | -7.3% |
| 1996 | 22.84 micrograms per cubic meter | +7.5% |
| 1997 | 22.8 micrograms per cubic meter | -0.2% |
| 1998 | 22.76 micrograms per cubic meter | -0.2% |
| 1999 | 22.72 micrograms per cubic meter | -0.2% |
| 2000 | 23.5 micrograms per cubic meter | +3.4% |
| 2001 | 20.83 micrograms per cubic meter | -11.3% |
| 2002 | 21.89 micrograms per cubic meter | +5.1% |
| 2003 | 19.76 micrograms per cubic meter | -9.7% |
| 2004 | 26.7 micrograms per cubic meter | +35.1% |
| 2005 | 24.02 micrograms per cubic meter | -10.0% |
| 2006 | 22.63 micrograms per cubic meter | -5.8% |
| 2007 | 22.98 micrograms per cubic meter | +1.6% |
| 2008 | 24.56 micrograms per cubic meter | +6.8% |
| 2009 | 24.09 micrograms per cubic meter | -1.9% |
| 2010 | 21.78 micrograms per cubic meter | -9.6% |
| 2011 | 24.85 micrograms per cubic meter | +14.1% |
| 2012 | 21.86 micrograms per cubic meter | -12.0% |
| 2013 | 20.66 micrograms per cubic meter | -5.5% |
| 2014 | 20.35 micrograms per cubic meter | -1.5% |
| 2015 | 26.65 micrograms per cubic meter | +31.0% |
| 2016 | 24.65 micrograms per cubic meter | -7.5% |
| 2017 | 23.24 micrograms per cubic meter | -5.7% |
| 2018 | 24.09 micrograms per cubic meter | +3.7% |
| 2019 | 22.5 micrograms per cubic meter | -6.6% |
| 2020 | 22.67 micrograms per cubic meter | +0.7% |
| 2021 | 21.37 micrograms per cubic meter | -5.8% |
| 2022 | 22.37 micrograms per cubic meter | +4.7% |
| 2023 | 22.46 micrograms per cubic meter | +0.4% |
Sierra Leone compared with similar countries
- Sierra Leone's 22.46 micrograms per cubic meter is below the median for low income countries, which is 33.29 micrograms per cubic meter, 67% of the median. (25 countries reporting)
- Sierra Leone's 22.46 micrograms per cubic meter is below the median for Sub-Saharan Africa, which is 27.49 micrograms per cubic meter, 82% of the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 22.82 micrograms per cubic meter | 21.25 micrograms per cubic meter | 23.89 micrograms per cubic meter | 10 |
| 2000s | 23.1 micrograms per cubic meter | 19.76 micrograms per cubic meter | 26.7 micrograms per cubic meter | 10 |
| 2010s | 23.06 micrograms per cubic meter | 20.35 micrograms per cubic meter | 26.65 micrograms per cubic meter | 10 |
| 2020s | 22.22 micrograms per cubic meter | 21.37 micrograms per cubic meter | 22.67 micrograms per cubic meter | 4 |
Countries ranked near Sierra Leone
- 66 Thailand 23.49 micrograms per cubic meter compare
- 67 Chile 23.1 micrograms per cubic meter compare
- 68 Sri Lanka 22.68 micrograms per cubic meter compare
- 70 Palestine 22.39 micrograms per cubic meter compare
- 71 Philippines 22.21 micrograms per cubic meter compare
- 72 Israel 21.9 micrograms per cubic meter compare
More reference data data for Sierra Leone
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.0238 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 0.4498 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 0.5935 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 0.12 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 0.5935 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 0.0797 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 0.044 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 1.91 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 2.72 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 0.6534 (2050)
Frequently asked questions
- What is particulate matter exposure in 1990 vs. 2017 in Sierra Leone?
- Particulate matter exposure in 1990 vs. 2017 in Sierra Leone was 22.46 micrograms per cubic meter in 2023, according to Global Burden of Disease Study 2023, Institute for Health Metrics and Evaluation (IHME), via World Bank (2026) – processed by Our World in Data.
- What is the highest particulate matter exposure in 1990 vs. 2017 recorded in Sierra Leone?
- The highest recorded value was 26.7 micrograms per cubic meter in 2004.
- What is the lowest particulate matter exposure in 1990 vs. 2017 recorded in Sierra Leone?
- The lowest recorded value was 19.76 micrograms per cubic meter in 2003.
- How does Sierra Leone rank for particulate matter exposure in 1990 vs. 2017?
- Sierra Leone ranks 69th out of 200 countries with data for 2023.
- Is particulate matter exposure in 1990 vs. 2017 rising or falling in Sierra Leone?
- Over the last ten years it is up 8.7%. The long-run trend across the full record is flat.
- Where does this Sierra Leone data come from?
- The figures come from Global Burden of Disease Study 2023, Institute for Health Metrics and Evaluation (IHME), via World Bank (2026) – processed by Our World in Data, published as part of Particulate matter exposure in 1990 vs. 2017. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 34 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Population-weighted average level of exposure to concentrations of suspended particles measuring less than 2.5 microns in diameter. Exposure is measured in micrograms per cubic meter (µg/m³).