| 2021 1 7 | 85.2% | 1.9 | | 68.1% 42.0 | 12 | 99.5% | 96.7% 94.3% 92.0% | 88.7% 83.5% 83.0% | 79.2% 78.8% 77.8% 76. | 9% 71.7% | PM2.5 24 / | 20.0% 12 PM2.5 | | 10 / 17 / | 21 / 22 / 22 | / 25 / 25 | / 26 / 26 | / 28 / 30 / | | | 12 | | | |