| 2021 1 2 | 90.8% | 6.1 12 | | 100.0% 100.0% | 98.3% 96.6% 94. | 9% 91.5% 91.5% 88. | 1% 88.1% 84.7% | 83.1% 72.9% | PM2.5 34 / | 13.3% 12 | PM2.5 | 9 / 26 / | 26 / 28 | / 30 / | 32 / 37 / | 40 / 41 / | 43 / 46 / | 50 / | | 12 | | | | |