PM2.5 air pollution, mean annual exposure

34.83 (micrograms per cubic meter) in 2020

日付 変更 , %
2020 34.83 -16.35%
2019 41.64 -5.17%
2018 43.91 4.25%
2017 42.12 3.43%
2016 40.72 -7.58%
2015 44.07 15.71%
2014 38.08 -21.36%
2013 48.42 -9.71%
2012 53.63 24.06%
2011 43.23 10.38%
2010 39.17 0.67%
2009 38.91