| 1 | 22 | | | | | 10 3 | | | | | 2019 2020 | 2019 | | | | | | | | | | PM2.5 | | | | PM2.5 | | | | | | | | | | 2018 2017 | | | 2019 10 | 2020 1 20 | | | PM2.5 | PM2.5 | 1.9% | 8.6% | | 2 + 26 | PM2.5 | 11.0% 5.7% 6.3% | 3.9% 18.0% 7.5% | | 33.5% | 19.2% | 2 + 26 | 9 39 | 41 | 49 | 59 | 146 | 2 + 26 PM2.5 | 268 26. | 4% 19.0% | PM2.5 | 298 | 7.4% | | | | | | | | | | | | | 1 24 30 | | | | | | 1 23 | | | 27 30 | | | | | | 1 23 24 | | | 25 | | | 1 24 | | 25 | | 26 | | 27 | | 1 24 26 | | | 27 | | | |