| 2018 6 6 7 6 | | | | | 10 17 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3 | 2020 | | | | | 83.8% | PM 2.5 2015 | 12% Ⅰ Ⅲ | 59.6% Ⅴ | 3.8% | | 81% 23% | 45% | | | | | | | | | | 100 | | | | 2020 | | | | | | | | | | | | | | | | 100 | | | | 6 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 10 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 33 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 5 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |