| | 98.4% | 5 30 | | 2017 | | 2017 98.4% | 1.2 PM2.5 | 33.3% 6 | 12 | 26 20 | Ⅲ 76.9% | 2.8 | | | 90% PM2. 5 | 35 | 52.9% V | 5.9% | | | | | | | | | | | | | | | | |