| | | | | | | | | | | | | | 2021 5 27 | | 2021 | | | | | | | | | | | | | | | | 2018 17 | | 2018 22 | | | 2018 875 | | 2019 | 648 | | | | | 2018 13 | | 2018 37 | | | 2020 25 | | 2020 | | 2020 13 | | 2020 59 | | | | | | | | | | | | | | 1. | | | | | | | 2. | | | | | | | 3. | | | | | | | | 4. | | | | | 5. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3 7 | | | | | | | | 2 2 | | | | | Ⅲ Ⅱ Ⅰ | AQI | 24 | AQI>200 | | | AQI > | 200 2 48 2 | | AQI > | 200 3 72 3 | | AQI > | 200 4 96 4 | AQI > 300 2 48 2 | AQI 500 | | | Ⅲ Ⅱ | Ⅰ | | 24 | | 24 | | | | | | | | | | | | | | | | | | | | | | | | 36 | | | | 36 | | | | | | | | | | | | | | | | | | | | | | | | | Ⅲ | | Ⅱ | | Ⅰ | | | | | | | | | 1. | | | | Ⅱ | | | | Ⅰ | | | | Ⅱ | | | | | Ⅰ | | | 2. | | | | | | | | 1. | 1 | | | | | | | | | | 2 | | | | | | | | | | | 3 | | | | | | | | | 4 | | Ⅲ Ⅱ | Ⅰ | 10％ 20％ 30％ | | | | | 2.Ⅲ | | | | | | | 1 | | | | | | | | | | | | | 2 | | | | | | | | 3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3. Ⅱ | Ⅲ | | | | | | | | | | | | | | | | 10 | | | | | | | 4. Ⅰ | Ⅱ | | | AQI | 500 | | | | | | | | | | | | 5. | 1 Ⅲ | | | | | | | | | | 2 Ⅱ | Ⅲ | | | 3 Ⅰ | Ⅱ | | | | | | 6. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 24 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2016 | 1. | | 2. | 3. | | 4. | | 1 | | | | | | | | | | | | | | | | | | | | · | | | | | | | | | | | 2021 5 27 |