2016年，长沙市功能区噪声昼间和夜间噪声达标率分别为68.0%、45.3%，与上年相比，昼间噪声达标率下降9.3个百分点，夜间噪声达标率提高8.6百分点。监测统计结果见表3。
统计结果表明，1类功能区（居民、文教区）昼间噪声年均值超标，夜间噪声年均值符合国家标准，昼间、夜间噪声达标率均为50%；2类功能区（居住、商业、工业混杂区）昼间和夜间噪声年均值均符合国家标准，昼间和夜间噪声达标率分别为71.9%、56.3%；3类功能区(工业集中区)昼间和夜间噪声年均值均符合国家标准，昼间、夜间噪声达标率分别为87.5%、75%；4类功能区（交通干线道路两侧）昼间噪声年均值符合国家标准，达标率为62.5%，夜间噪声年均值超标严重，达标率为0。
表3 2016年长沙市功能区噪声定期监测统计结果
|
功能区 |
测点名称 |
一季度 |
二季度 |
三季度 |
四季度 |
全年 | |||||||||||
|
代码 |
类型 |
Ld |
Ln |
Ldn |
Ld |
Ln |
Ldn |
Ld |
Ln |
Ldn |
Ld |
Ln |
Ldn |
Ld |
Ln |
Ldn | |
|
2 |
1类区 |
中南大学 |
54.8 |
39.7 |
53.6 |
57.5 |
45.3 |
56.9 |
58.0 |
47.8 |
57.9 |
53.8 |
43.0 |
53.6 |
56.0 |
43.9 |
55.5 |
|
达标率% |
100.0 |
100.0 |
/ |
0.0 |
0.0 |
/ |
0.0 |
0.0 |
/ |
100.0 |
100.0 |
/ |
50.0 |
50.0 |
/ | ||
|
3 |
2类区 |
火星镇 |
56.2 |
51.6 |
58.8 |
60.2 |
53.7 |
61.7 |
48.5 |
47.6 |
53.8 |
61.5 |
55.1 |
63.0 |
56.6 |
52.0 |
59.3 |
|
火车站 |
60.7 |
51.4 |
60.9 |
58.4 |
51.6 |
59.8 |
57.1 |
51.1 |
58.8 |
56.9 |
48.0 |
57.3 |
58.3 |
50.5 |
59.2 | ||
|
王家垅 |
55.5 |
49.9 |
57.5 |
52.5 |
44.0 |
53.0 |
56.1 |
52.9 |
59.6 |
56.9 |
52.9 |
59.9 |
55.2 |
49.9 |
57.5 | ||
|
湘江世纪 |
51.3 |
46.3 |
53.7 |
50.0 |
47.0 |
53.7 |
48.6 |
44.1 |
51.3 |
51.1 |
46.4 |
53.6 |
50.2 |
45.9 |
53.1 | ||
|
八方小区 |
49.4 |
45.8 |
52.7 |
50.2 |
45.0 |
52.5 |
48.3 |
42.2 |
50.1 |
52.1 |
47.4 |
54.6 |
50.0 |
45.1 |
52.5 | ||
|
井湾子 |
60.5 |
43.5 |
59.2 |
52.4 |
48.1 |
55.2 |
52.3 |
46.9 |
54.4 |
54.1 |
43.2 |
53.8 |
54.8 |
45.4 |
55.6 | ||
|
解放四村 |
58.5 |
51.6 |
59.8 |
61.8 |
49.7 |
61.2 |
54.3 |
51.6 |
58.2 |
57.3 |
49.6 |
58.2 |
58.0 |
50.6 |
59.4 | ||
|
坡子街 |
66.5 |
59.9 |
67.9 |
66.8 |
58.7 |
67.5 |
66.7 |
62.4 |
69.5 |
62.4 |
53.4 |
62.7 |
65.6 |
58.6 |
66.9 | ||
|
(平均) |
57.3 |
50.0 |
58.8 |
56.5 |
49.7 |
58.1 |
54.0 |
49.9 |
57.0 |
56.5 |
49.5 |
57.9 |
56.1 |
49.8 |
57.9 | ||
|
达标率% |
62.5 |
50.0 |
/ |
62.5 |
62.5 |
/ |
87.5 |
50.0 |
/ |
75.0 |
62.5 |
/ |
71.9 |
56.3 |
/ | ||
|
4 |
3类区 |
高新开发 |
64.9 |
56.2 |
65.4 |
57.2 |
48.7 |
57.7 |
57.9 |
49.7 |
58.6 |
55.8 |
49.5 |
57.4 |
58.9 |
51.0 |
59.8 |
|
雨花环保 |
64.7 |
52.5 |
64.0 |
63.1 |
50.9 |
62.5 |
64.9 |
54.1 |
64.7 |
67.0 |
62.3 |
69.6 |
64.9 |
55.0 |
65.2 | ||
|
(平均) |
64.8 |
54.4 |
64.7 |
60.2 |
49.8 |
60.1 |
61.4 |
51.9 |
61.7 |
61.4 |
55.9 |
63.5 |
61.9 |
53.0 |
62.5 | ||
|
达标率% |
100.0 |
50.0 |
/ |
100.0 |
100.0 |
/ |
100.0 |
100.0 |
/ |
50.0 |
50.0 |
/ |
87.5 |
75.0 |
/ | ||
|
5 |
4类区 |
五一路 |
70.0 |
68.6 |
74.9 |
61.4 |
60.8 |
66.9 |
63.3 |
60.1 |
66.8 |
63.9 |
62.2 |
68.6 |
64.7 |
62.9 |
69.3 |
|
韶山路 |
67.9 |
65.8 |
72.2 |
70.1 |
65.5 |
72.7 |
68.8 |
67.0 |
73.4 |
70.6 |
68.7 |
75.1 |
69.4 |
66.7 |
73.3 | ||
|
二环线 |
68.9 |
60.6 |
69.6 |
70.4 |
64.6 |
72.3 |
70.3 |
67.0 |
73.8 |
71.5 |
69.8 |
76.1 |
70.3 |
65.5 |
72.9 | ||
|
银盆路 |
69.9 |
62.3 |
70.9 |
70.8 |
61.6 |
71.1 |
68.9 |
67.9 |
74.1 |
61.7 |
59.7 |
66.1 |
67.8 |
62.9 |
70.6 | ||
|
(平均) |
69.2 |
64.3 |
71.9 |
68.2 |
63.1 |
70.8 |
67.8 |
65.5 |
72.0 |
66.9 |
65.1 |
71.5 |
68.1 |
64.5 |
71.5 | ||
|
达标率% |
100.0 |
0.0 |
/ |
25.0 |
0.0 |
/ |
75.0 |
0.0 |
/ |
50.0 |
0.0 |
/ |
62.5 |
0.0 |
/ | ||