| | | | | | | 2020 8 25 | | | | | | | | | | | | | | | | 2018 17 | | 2018 22 | | 2018 875 | | 2019 648 | | | | | 2018 13 | | 2018 37 | | 2020 25 | 2020 | | 2020 113 | | | | | | | | | | | | | | | | | 1 | | | | | | 2 | | | | | | 3 | | | | | | 4 | | | | 5 | | | | | | | | | | | | | | | | | | | | | | 1 | | | | 2 | | 3 | 7 | | 3 | | | | | | | | 1. | AQI | 24 | AQI ∨ 200 | | | Ⅲ Ⅱ Ⅰ | | AQI ∨200 48 | | | AQI ∨200 | 72 | | AQI ∨ 200 4 96 | AQI ∨ 300 48 | AQI 500 | 2. | | 24 | AQI | 24 | | | 1 | | | | | | | AQI | | | | 2 | | AQI | | | | | 3 | | 36 | | | | | | | | 4. | | | | | | | | | | | | | | | | Ⅲ | Ⅱ | Ⅰ | | | | | | | | | | | | 1. | 1 | | | | | | | | 2 | | | | | | | | | | | | 3 | | | | | | | | 4 | | Ⅲ Ⅱ Ⅰ | 10% 20% 30% | | | | 2 Ⅲ | | | | 1 | | | | | | | | | | 2 | | | | | | | 3 | ① | | | | | | | | | ② | | | | | | | | | | | | | | | | | | | | ③ | | | | | | | | | | 3 Ⅱ | Ⅲ | | 1 | | | | 2 | | | | | | 10 | Ⅳ | | | | | 4. Ⅰ | Ⅱ | | 1 | | | | 2 | ① | | | ② | | | 1 Ⅲ | | | | | | | | 2 Ⅱ | Ⅲ | | 3 Ⅰ | Ⅱ | | | | | | 5 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 24 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2016 9 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |