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12-7
Ambient Air Quality in Main Cities (2004)
(milligram/cu.m)
Paticulate
Sulphur
Nitrogen
Days of Air Quality
City
Matters
Dioxide
Dioxide
Equal to or Above
Grade II (days)
Beijing
0.149
0.055
0.071
229
Tianjin
0.111
0.073
0.052
299
Shijiazhuang
0.123
0.087
0.042
279
Taiyuan
0.175
0.087
0.022
224
Hohhot
0.080
0.045
0.038
311
Shenyang
0.137
0.052
0.035
301
Dalian
0.085
0.013
0.032
345
Harbin
0.113
0.042
0.060
298
Shanghai
0.099
0.055
0.062
311
Nanjing
0.121
0.045
0.055
295
Hangzhou
0.110
0.049
0.055
292
Hefei
0.110
0.013
0.017
313
Fuzhou
0.074
0.010
0.041
358
Nanchang
0.099
0.057
0.029
330
Jinan
0.149
0.045
0.038
210
Zhengzhou
0.111
0.057
0.037
298
Wuhan
0.130
0.048
0.054
247
Changsha
0.140
0.084
0.033
219
Guangzhou
0.099
0.077
0.073
304
Nanning
0.078
0.061
0.034
348
Haikou
0.033
0.007
0.013
366
Chongqing
0.142
0.113
0.067
243
Chengdu
0.115
0.067
0.048
309
Guiyang
0.083
0.094
0.024
337
Kunming
0.085
0.069
0.040
351
Lhasa
0.052
0.003
0.020
358
Xi'an
0.142
0.049
0.033
260
Lanzhou
0.172
0.071
0.045
204
Xining
0.127
0.024
0.027
280
Yinchuan
0.122
0.054
0.040
323
Urumqi
0.114
0.102
0.058
258
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