| | | | | | | 2018 8 31 | | | | | | | 20142017 | 2017 | 2018 | | | | | | | 4 10 | | 1 3 | | | | | 85% | | | | | | | | | 23 | | 100% 2017 | 50 200 | 30 50 | 328 | | | | | | | | 20152020 4 | | | | 10 10 | | 4 | | | | | | | | | 4 | | | | | | | | | | | 15 | | 36 1500 | | | | | | 1.7 | 61% | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 20182020 | | 20182020 | | | | | | | | | | | | | | 90% PM 2.5 | | | 2015 2020 | 2018 | | | | | | 4 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |