5 | | | | | | | | 4 | | | | | | | 6 | 6.1 | | | | | | | 6.2 | | | | | | | 6.3 | | | | | | | | | 6.4 | | | | 24 | | | 6.5 | | | | | | | 6.6 | | | | | | | | | | | | | 6.7 | | | | | | | | 7 | 7.1 | 1 | | | 2 | | | | | 3 | | | | 4 | | | | | | | 7.2 | | | | | 8 | | | | 9 | | | | | | | | | | | | | | | | 10 | 10 .1 | 1 (AQI) | | | | | | 2 | (AQI) 200 | | 3 | AQI | 201≤ AQI≤300 300 AQI 500 | 500≤AQI | 10.2 | | | | 10.3 | | | | 2020 108 | |