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12-14  Monitoring of Urban Environment Noise in Key Cities  under National Control Programme (2003)
  City
Grid Length
Grid Width
Total number 
Sound Level
(m)
(m)
of Grids (unit)
LeqdB(A)
  Beijing       
1000
1000
428
53.6
  Tianjin       
1000
1000
205
55.0
  Shijiazhuang  
500
500
240
54.0
  Taiyuan       
750
750
232
53.8
  Hohhot        
400
400
204
54.0
  Shenyang      
750
750
240
53.5
  Changchun     
500
500
204
57.0
  Harbin        
700
700
216
56.1
  Shanghai      
1414
1414
204
56.7
  Nanjing       
1000
1000
210
54.3
  Hangzhou      
500
500
235
56.0
  Hefei         
500
500
250
52.5
  Fuzhou        
500
500
220
56.3
  Nanchang      
500
500
201
55.8
  Jinan         
1000
1000
426
48.6
  Zhengzhou     
500
500
235
55.9
  Wuhan         
1000
1000
210
55.1
  Changsha      
500
500
288
53.8
  Guangzhou     
1000
1000
202
54.5
  Nanning       
550
550
200
56.2
  Haikou        
400
400
203
56.1
  Chongqing     
500
500
661
55.0
  Chengdu       
900
900
215
54.8
  Guiyang       
500
500
220
55.8
  Kunming       
800
800
223
54.6
  Lhasa         
55.6
  Xi'an         
500
500
212
55.6
  Lanzhou       
375
375
224
58.0
  Xining        
500
500
200
51.3
  Yinchuan      
750
750
209
51.1
  Urumqi        
1000
1000
428
53.4
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