| | 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% | | | | | | | | | | | | | | | | | | | | | |