| | | 2019 | 9 | 8 | | 21 | | | | | | | | | 2015 2019 | Ⅲ | 8.9 | 74.9% Ⅴ | 6.3 | 3.4% PM2.5 | 23.1% 337 | | 82% | 11.5% | 11.9% 22.5% 16.3% GDP | 18.2% | | | 8 | | | | | | | | | 1 9 | 87.2% | 5.7 | | 84.5% | | | | | | | |