8 11 7 | 74 | 10 | 7 PM2.5 | 69 / 11.3% | 54.8% | 8 | 338 76.7% | | 7 | 338 | 78 | 76.7% PM2.5 49 | / 9.3% | 58.8% 10.2 | PM2.5 64 / | 17.9% 2013 37.9% | | | 338 | | | | | |