| 2020 | 294 | 80.3% | Ⅲ | 75% | | 100% | | | 1. | 2020 8 | | PM10 79 / | PM2.5 | 41 / SO2 | 13 / | NO2 33 / | O3 8 | 90 141 / | CO 24 | 95 2.4 / | | 2. | 2020 | 14 4 | 1 1 | | 2020 12 | 11 91.7% | Ⅲ Ⅲ 9 | 75% Ⅳ 2 16.7% | V 1 8.3% | | GB3838-2002 | Ⅳ Ⅲ | 3. | 2020 | 10 | 1 9 | | | GB3838 2002 Ⅲ | GB/T14848 2017 Ⅲ | 100% | 4. | 2020 | 68.1 | 53.0 | | 0.2 | | 0.8 | |