12-19 Ambient Air Quality in Major Cities (2011) | |||||
(milligram/cu.m) | |||||
City | |||||
Proportion of Days of | |||||
Particulate | Sulphur | Nitrogen | Days of Air Quality | Air Quality Equal to or | |
Matters | Dioxide | Dioxide | Equal to or Above | above Grade II in the | |
Grade II (days) | Whole Year (%) | ||||
Beijing | 0.113 | 0.028 | 0.056 | 286 | 78.4 |
Tianjin | 0.093 | 0.042 | 0.038 | 320 | 87.7 |
Shijiazhuang | 0.099 | 0.052 | 0.041 | 320 | 87.7 |
Taiyuan | 0.084 | 0.064 | 0.023 | 308 | 84.4 |
Hohhot | 0.076 | 0.054 | 0.039 | 347 | 95.1 |
Shenyang | 0.096 | 0.059 | 0.033 | 332 | 91.0 |
Changchun | 0.091 | 0.026 | 0.043 | 345 | 94.5 |
Harbin | 0.099 | 0.041 | 0.046 | 317 | 86.8 |
Shanghai | 0.080 | 0.029 | 0.051 | 337 | 92.3 |
Nanjing | 0.097 | 0.034 | 0.049 | 317 | 86.8 |
Hangzhou | 0.093 | 0.039 | 0.058 | 333 | 91.2 |
Hefei | 0.113 | 0.022 | 0.025 | 303 | 83.0 |
Fuzhou | 0.069 | 0.009 | 0.032 | 360 | 98.6 |
Nanchang | 0.088 | 0.056 | 0.038 | 347 | 95.1 |
Jinan | 0.104 | 0.051 | 0.036 | 320 | 87.7 |
Zhengzhou | 0.103 | 0.051 | 0.047 | 318 | 87.1 |
Wuhan | 0.100 | 0.039 | 0.056 | 306 | 83.8 |
Changsha | 0.083 | 0.040 | 0.047 | 341 | 93.4 |
Guangzhou | 0.069 | 0.028 | 0.049 | 360 | 98.6 |
Nanning | 0.073 | 0.026 | 0.033 | 351 | 96.2 |
Haikou | 0.041 | 0.008 | 0.016 | 365 | 100.0 |
Chongqing | 0.093 | 0.038 | 0.031 | 324 | 88.8 |
Chengdu | 0.100 | 0.031 | 0.051 | 322 | 88.2 |
Guiyang | 0.079 | 0.049 | 0.030 | 349 | 95.6 |
Kunming | 0.065 | 0.037 | 0.044 | 365 | 100.0 |
Lhasa | 0.040 | 0.009 | 0.023 | 364 | 99.7 |
Xi'an | 0.118 | 0.042 | 0.041 | 305 | 83.6 |
Lanzhou | 0.138 | 0.048 | 0.042 | 244 | 66.8 |
Xining | 0.105 | 0.043 | 0.026 | 316 | 86.6 |
Yinchuan | 0.095 | 0.038 | 0.030 | 333 | 91.2 |
Urumqi | 0.132 | 0.079 | 0.068 | 276 | 75.6 |