| | 11 10 | | | | 1 10 | 90.2% 89.1% | PM 2.5 | 27 | 10 | PM 2.5 29 | 2015 17.1% | 12% | | 98.1% | 99% | | | | | | | | | | | | | | | | | | | | | | | 2016 | 49 47 | 2018 | 100 95 | | 12 | | | | | |