PM2.5 air pollution — all countries

PM2.5 air pollution — Cambodia

PM2.5 air pollution in Cambodia in 2023 — 19.4 µg/m³. Ranked 112 in the world out of 200. Since 1990, the indicator has fallen by 31.5%.

2023 19.4 µg/m³ −2.05% vs 2022
World rank 112of 200
Period maximum 28.4 µg/m³1990
Period minimum 17.8 µg/m³2015

Trend over time

1990–2023 · µg/m³

PM2.5 air pollution — Cambodia, 1990–2023152025301990199419982002200620102014201820221990: 28.4 µg/m³1991: 27.6 µg/m³1992: 27.4 µg/m³1993: 27.3 µg/m³1994: 27.1 µg/m³1995: 25.7 µg/m³1996: 26.8 µg/m³1997: 26.7 µg/m³1998: 26.5 µg/m³1999: 26.3 µg/m³2000: 26.8 µg/m³2001: 25.8 µg/m³2002: 26.8 µg/m³2003: 25.8 µg/m³2004: 27.6 µg/m³2005: 27.2 µg/m³2006: 23.5 µg/m³2007: 21.9 µg/m³2008: 21.7 µg/m³2009: 19.8 µg/m³2010: 20.5 µg/m³2011: 21.2 µg/m³2012: 17.9 µg/m³2013: 21.6 µg/m³2014: 19.6 µg/m³2015: 17.8 µg/m³2016: 19.3 µg/m³2017: 18.4 µg/m³2018: 21.5 µg/m³2019: 19 µg/m³2020: 20.9 µg/m³2021: 19.6 µg/m³2022: 19.8 µg/m³2023: 19.4 µg/m³
Change over the period: −8.9 (−31.52%) Average annual rate: -1.14 %

Comparison, 2023

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

Cambodia 19.4 µg/m³
World 32.9 µg/m³
East Asia & Pacific 27.3 µg/m³
South-Eastern Asia computed 22.7 µg/m³
Lower-middle-income countries computed 47.3 µg/m³
PM2.5 air pollution — Cambodia, by year Cambodia All countries CSV XLSX
Year µg/m³ Change Change, %
2023 19.4 −0.4 −2.05%
2022 19.8 +0.3 +1.31%
2021 19.6 −1.4 −6.49%
2020 20.9 +2 +10.34%
2019 19 −2.5 −11.79%
2018 21.5 +3.1 +16.75%
2017 18.4 −0.9 −4.56%
2016 19.3 +1.5 +8.65%
2015 17.8 −1.9 −9.47%
2014 19.6 −1.9 −8.93%
2013 21.6 +3.6 +20.19%
2012 17.9 −3.2 −15.33%
2011 21.2 +0.7 +3.38%
2010 20.5 +0.7 +3.66%
2009 19.8 −2 −9.1%
2008 21.7 −0.2 −0.81%
2007 21.9 −1.5 −6.6%
2006 23.5 −3.8 −13.86%
2005 27.2 −0.4 −1.36%
2004 27.6 +1.8 +7.02%
2003 25.8 −1 −3.77%
2002 26.8 +1 +3.98%
2001 25.8 −1 −3.82%
2000 26.8 +0.5 +1.79%
1999 26.3 −0.2 −0.59%
1998 26.5 −0.2 −0.58%
1997 26.7 −0.2 −0.58%
1996 26.8 +1.1 +4.27%
1995 25.7 −1.4 −5.19%
1994 27.1 −0.2 −0.57%
1993 27.3 −0.2 −0.57%
1992 27.4 −0.2 −0.56%
1991 27.6 −0.8 −2.76%
1990 28.4

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.