建成区噪声环境质量
|
| 2007-08-09 |
|
年度 |
建成区道路交通噪声，分贝（A） |
建成区区域环境噪声，分贝（A） |
|
平均值 |
城区 |
近郊区 |
平均值 |
城区 |
近郊区 |
远郊区 |
|
2006 |
69.4-73.0 |
69.7 |
69.0 |
50.8-57.7 |
53.9 |
|
53.9 |
|
2005 |
69.4-72.7 |
69.5 |
68.4 |
51.9-56.8 |
53.2 |
|
53.7 |
|
2004 |
69.6 |
68.1 |
70.3 |
53.8 |
54.2 |
53.7 |
54.4 |
|
2003 |
69.7 |
68.2 |
70.3 |
53.6 |
54.1 |
53.5 |
54.0 |
|
2002 |
69.5 |
68.1 |
70.1 |
53.5 |
54.1 |
53.8 |
|
|
2001 |
69.6 |
67.9 |
70.5 |
53.9 |
54.5 |
53.7 |
|
|
2000 |
71.0 |
68.1 |
72.6 |
53.9 |
55.5 |
53.6 |
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