Sierra Leone Sierra Leone, PM2.5 air pollution, mean annual exposure (micrograms per cubic meter)

Year Value Rank Change Change,%
2020 43.2 24 +4.63 +12%
2019 38.6 33 -5.74 -13%
2018 44.3 28 -0.372 -0.833%
2017 44.7 29 -4 -8.21%
2016 48.7 26 -3.1 -5.99%
2015 51.8 27 +15.6 +43%
2014 36.2 40 +1.8 +5.23%
2013 34.4 47 -7.98 -18.8%
2012 42.4 37 -0.738 -1.71%
2011 43.1 34 +6.21 +16.8%
2010 36.9 37 -0.466 -1.25%
2009 37.4 36 -1.12 -2.9%
2008 38.5 37 -1.35 -3.39%
2007 39.9 34 -1.16 -2.84%
2006 41 34 -0.558 -1.34%
2005 41.6 35 -0.102 -0.245%
2004 41.7 34 -0.0705 -0.169%
2003 41.8 36 -0.0299 -0.0717%
2002 41.8 37 +0.0198 +0.0474%
2001 41.8 38 +0.0787 +0.189%
2000 41.7 38 +0.547 +1.33%
1999 41.1 38 +1.14 +2.86%
1998 40 40 +1.33 +3.43%
1997 38.7 42 +1.1 +2.92%
1996 37.6 42 +0.458 +1.23%
1995 37.1 42 -0.267 -0.713%
1994 37.4 42 -0.776 -2.03%
1993 38.2 42 -1.25 -3.17%
1992 39.4 42 -1.69 -4.1%
1991 41.1 40 -2.09 -4.84%
1990 43.2 36

Charts