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12-14  Monitoring of Urban Environment Noise in Key Cities 
under National Control Programme (2004)
 
City
Grid Length
Grid Width
Total number 
Sound Level
(m)
(m)
of Grids (unit)
LeqdB(A)
         
  Beijing       
1000
1000
448
53.8
  Tianjin       
1000
1000
205
54.9
  Shijiazhuang  
500
500
240
54.0
  Taiyuan           
232
54.0
  Hohhot        
400
400
204
54.6
  Shenyang      
750
750
240
54.0
  Changchun     
500
500
204
56.7
  Harbin        
700
700
216
56.1
  Shanghai      
1414
1414
206
56.5
  Nanjing       
1000
1000
210
54.4
  Hangzhou      
500
500
235
55.9
  Hefei         
500
500
250
53.2
  Fuzhou        
500
500
220
56.2
  Nanchang      
500
500
201
55.7
  Jinan         
1000
1000
214
53.3
  Zhengzhou     
500
500
235
55.8
  Wuhan         
1000
1000
210
55.4
  Changsha      
500
500
288
53.3
  Guangzhou     
1000
1000
202
55.0
  Nanning       
550
550
200
55.0
  Haikou        
400
400
203
55.7
  Chongqing     
500
500
661
55.1
  Chengdu       
900
900
215
54.6
  Guiyang       
500
500
220
55.7
  Kunming       
800
800
223
53.1
  Lhasa                 
  Xi'an             
200
55.6
  Lanzhou       
500
500
212
58.0
  Xining        
375
375
223
51.7
  Yinchuan      
500
500
200
52.9
  Urumqi        
750
750
209
54.3
         
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