PM2.5 air pollution, mean annual exposure
6.15
(micrograms per cubic meter)
in 2020
| 日付 |
値 |
変更
, % |
| 2020 |
6.15 |
-10.21% |
| 2019 |
6.84 |
-12.21% |
| 2018 |
7.80 |
26.68% |
| 2017 |
6.15 |
-10.52% |
| 2016 |
6.88 |
-4.27% |
| 2015 |
7.18 |
-17.49% |
| 2014 |
8.71 |
7.75% |
| 2013 |
8.08 |
1.14% |
| 2012 |
7.99 |
-3.46% |
| 2011 |
8.28 |
-9.41% |
| 2010 |
9.14 |
-1.68% |
| 2009 |
9.29 |
|