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

Year Value Rank Change Change,%
2020 23.9 78 -6.11 -20.3%
2019 30.1 51 -4.03 -11.8%
2018 34.1 43 +0.272 +0.806%
2017 33.8 44 -3.13 -8.47%
2016 36.9 42 -0.544 -1.45%
2015 37.5 45 -2.81 -6.98%
2014 40.3 29 +2.88 +7.7%
2013 37.4 40 -0.715 -1.88%
2012 38.1 42 +7.66 +25.1%
2011 30.5 55 +4.61 +17.8%
2010 25.9 69 -0.836 -3.13%
2009 26.7 64 -2 -6.97%
2008 28.7 59 -2.4 -7.73%
2007 31.1 51 -2.04 -6.17%
2006 33.1 49 -0.924 -2.71%
2005 34.1 48 +0.0436 +0.128%
2004 34 48 +0.279 +0.826%
2003 33.8 49 +0.407 +1.22%
2002 33.3 52 +0.428 +1.3%
2001 32.9 53 +0.342 +1.05%
2000 32.6 54 +0.272 +0.843%
1999 32.3 54 +0.271 +0.846%
1998 32 55 +0.24 +0.755%
1997 31.8 56 +0.18 +0.569%
1996 31.6 56 +0.0905 +0.287%
1995 31.5 56 +0.014 +0.0445%
1994 31.5 58 -0.032 -0.102%
1993 31.5 58 -0.0812 -0.257%
1992 31.6 59 -0.134 -0.42%
1991 31.8 60 -0.189 -0.592%
1990 31.9 61

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