| | | 4. | 4.1 | Ⅲ | | Ⅱ | | Ⅰ | | 4.2 | | | | | | | | AQI>200 AQI>150 48 | | | Ⅲ | AQI>200 48 AQI>150 72 | | Ⅱ | | AQI>200 72 AQI>300 | 24 | Ⅰ | 4.3 | | | | | | | | 4.4 | 4.4.1 | 1 | | | | | | | | | | | | 2 | | | | | | | | | | | | | | | | | | | 3 | | | | | | | | | | 4 | | Ⅲ Ⅱ | Ⅰ | 10% 20% 30% | | | | | | 4.4.2Ⅲ | | | | | | 1 | | | | | | | | | | | | | 2 | | | | | | | | | | 3 | | ① | | | | | | | | | | | | | ② | | | | | | | | | | | | | | | | | | | | | | | | | | | ③ | | | | | | | | | | | | | ④ | | 4.4.3Ⅱ | Ⅲ | | | 1 | | | | | 2 | | | | | | | | | 10 | | | | | | 4.4.4Ⅰ | Ⅱ | | 1 | | | | | | 2 | | ① | | | | | ② | | | | | | 4.5 | 4. 5.1Ⅲ | | | | | | | | | | | | 4.5.2Ⅱ | Ⅲ | | | | 4.5.3Ⅰ | Ⅱ | | | | 4.6 | | | 5 | | | | | | | | | | | | | 5. | 5.1 | | | | | | | | | | 5.2 | | | | | | | | | | | | | | | | | | | | | | | 5.3 | | | | | | | | | | 5.4 | | | | | | | | | 6. | 6.1 | | | | | | | | | | | | | | | | | | | | | 6.2 | | | | | | | | | | | | | | | 6.3 | | | | | | | | | | | | | | | | | | | | | |