PM2.5 air pollution — all countries

PM2.5 air pollution — Samoa

PM2.5 air pollution in Samoa in 2023 — 4.6 µg/m³. Ranked 9 in the world out of 200. Since 1990, the indicator has fallen by 11.2%.

2023 4.6 µg/m³ −14.04% vs 2022
World rank 9of 200
Period maximum 5.3 µg/m³2022
Period minimum 3.7 µg/m³2021

Trend over time

1990–2023 · µg/m³

PM2.5 air pollution — Samoa, 1990–20233.544.555.51990199419982002200620102014201820221990: 5.2 µg/m³1991: 5 µg/m³1992: 5 µg/m³1993: 5 µg/m³1994: 5 µg/m³1995: 4.7 µg/m³1996: 4.9 µg/m³1997: 4.9 µg/m³1998: 4.9 µg/m³1999: 4.9 µg/m³2000: 5 µg/m³2001: 5.3 µg/m³2002: 4.9 µg/m³2003: 5.1 µg/m³2004: 4.8 µg/m³2005: 5 µg/m³2006: 5.3 µg/m³2007: 5.2 µg/m³2008: 5 µg/m³2009: 4.7 µg/m³2010: 4.6 µg/m³2011: 4 µg/m³2012: 4.6 µg/m³2013: 4.6 µg/m³2014: 4.7 µg/m³2015: 5.2 µg/m³2016: 4.6 µg/m³2017: 4.9 µg/m³2018: 4.6 µg/m³2019: 4.5 µg/m³2020: 4.5 µg/m³2021: 3.7 µg/m³2022: 5.3 µg/m³2023: 4.6 µg/m³
Change over the period: −0.6 (−11.18%) Average annual rate: -0.36 %

Comparison, 2023

How the value compares with the world and the groups this territory belongs to: Samoa

Samoa 4.6 µg/m³
World 32.9 µg/m³
East Asia & Pacific 27.3 µg/m³
Lower-middle-income countries computed 47.3 µg/m³
PM2.5 air pollution — Samoa, by year Samoa All countries CSV XLSX
Year µg/m³ Change Change, %
2023 4.6 −0.7 −14.04%
2022 5.3 +1.6 +44.66%
2021 3.7 −0.8 −18.05%
2020 4.5 +0 +0.7%
2019 4.5 −0.1 −2.92%
2018 4.6 −0.3 −5.8%
2017 4.9 +0.2 +5.35%
2016 4.6 −0.6 −11.36%
2015 5.2 +0.6 +12.19%
2014 4.7 +0.1 +1.69%
2013 4.6 +0 +0.38%
2012 4.6 +0.5 +13.46%
2011 4 −0.6 −12.49%
2010 4.6 −0.1 −2.15%
2009 4.7 −0.3 −5.35%
2008 5 −0.2 −4.37%
2007 5.2 −0.1 −1.4%
2006 5.3 +0.3 +6.15%
2005 5 +0.2 +3.98%
2004 4.8 −0.3 −6.05%
2003 5.1 +0.2 +3.64%
2002 4.9 −0.4 −7.24%
2001 5.3 +0.3 +6.2%
2000 5 +0.1 +2.14%
1999 4.9 −0 −0.38%
1998 4.9 −0 −0.38%
1997 4.9 −0 −0.38%
1996 4.9 +0.2 +4.84%
1995 4.7 −0.3 −5.33%
1994 5 −0 −0.38%
1993 5 −0 −0.37%
1992 5 −0 −0.37%
1991 5 −0.1 −2.75%
1990 5.2

Polynesia, 2023

The same indicator for neighboring countries — with links to their pages

About the indicator

The mean annual concentration of suspended particles smaller than 2.5 micrometers, weighted by population — that is, the concentration residents are actually exposed to rather than the average across the territory. The WHO guideline of 2021 is no more than 5 µg/m³; in the most polluted countries values exceed it more than tenfold.

Source: Global Health Observatory (WHO), license CC BY-NC-SA 3.0 IGO.