|
主要水系 |
|
监测断面 |
分类水质断面占全部断面百分比(%) | |||||
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个数(个) |
Proportion of Monitored Section Water Quality (%) | ||||||
|
Main Water |
Number of |
Ⅰ类 |
Ⅱ类 |
Ⅲ类 |
Ⅳ类 |
Ⅴ类 |
劣Ⅴ类 | |
|
System |
Monitoring |
GradeⅠ |
GradeⅡ |
Grade Ⅲ |
Grade Ⅳ |
Grade Ⅴ |
Worse | |
|
|
Sections |
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|
|
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than | |
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|
(unit) |
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|
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|
GradeⅤ | |
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|
|
|
长 江 |
|
31 |
12.9 |
71.0 |
12.9 |
3.2 |
|
|
|
黄 河 |
|
22 |
|
31.8 |
63.6 |
4.6 |
|
|
|
珠 江 |
|
15 |
6.7 |
46.6 |
33.3 |
6.7 |
6.7 |
|
|
松花江 |
|
11 |
|
|
45.5 |
54.5 |
|
|
|
淮 河 |
|
14 |
|
21.4 |
50.0 |
28.6 |
|
|
|
海 河 |
|
2 |
|
|
|
|
50.0 |
50.0 |
|
辽 河 |
|
13 |
|
7.6 |
23.1 |
15.4 |
30.8 |
23.1 |
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资料来源：环境保护部。 |
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Source: Ministry of Environmental Protection. |
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