主要水系
监测断面
分类水质断面占全部断面百分比(%)
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
than
(unit)
GradeⅤ