| 湘江乌龙嘴断面监测数据统计
|
||||||||||
| 采样日期:2016.1.3
|
|
|||||||||
| 监测 项目
|
单位
|
采样位置
|
最低值
|
最高值
|
平均值
|
Ⅲ类水质标准
|
超标率 %
|
单项水质类别
|
||
| 左
|
中
|
右
|
||||||||
| 水温
|
摄氏度
|
14.3
|
14.3
|
14.3
|
14.3
|
14.3
|
14.3
|
/
|
/
|
/
|
| 电导率
|
ms/m
|
24.9
|
24.6
|
25.6
|
24.6
|
25.6
|
25.0
|
/
|
/
|
/
|
| pH
|
无量纲
|
6.17
|
6.13
|
6.45
|
6.13
|
6.45
|
6.25
|
6~9
|
0.00
|
Ⅰ
|
| 溶解氧
|
mg/L
|
7.50
|
7.14
|
6.98
|
6.98
|
7.50
|
7.21
|
≥5
|
0.00
|
Ⅱ
|
| 高锰酸盐指数
|
mg/L
|
1.84
|
1.91
|
1.90
|
1.84
|
1.91
|
1.88
|
≤6
|
0.00
|
Ⅰ
|
| 化学需氧量
|
mg/L
|
13.1
|
12.8
|
13.3
|
12.8
|
13.3
|
13.1
|
≤20
|
0.00
|
Ⅰ
|
| 生化需氧量
|
mg/L
|
2.62
|
2.56
|
2.66
|
2.56
|
2.66
|
2.61
|
≤4
|
0.00
|
Ⅰ
|
| 氨氮
|
mg/L
|
0.601
|
0.607
|
0.605
|
0.601
|
0.607
|
0.604
|
≤1.0
|
0.00
|
Ⅲ
|
| 总磷
|
mg/L
|
0.123
|
0.117
|
0.111
|
0.111
|
0.123
|
0.117
|
≤0.2
|
0.00
|
Ⅲ
|
| 总氮
|
mg/L
|
2.235
|
2.259
|
2.245
|
2.235
|
2.259
|
2.246
|
≤1.0
|
/
|
/
|
| 铜
|
mg/L
|
0.001ND
|
0.001ND
|
0.001ND
|
0.001ND
|
0.001ND
|
0.001ND
|
≤1.0
|
0.00
|
Ⅰ
|
| 锌
|
mg/L
|
0.01ND
|
0.01ND
|
0.01ND
|
0.01ND
|
0.01ND
|
0.01ND
|
≤1.0
|
0.00
|
Ⅰ
|
| 氟化物
|
mg/L
|
0.16
|
0.13
|
0.18
|
0.13
|
0.18
|
0.16
|
≤1.0
|
0.00
|
Ⅰ
|
| 硒
|
mg/L
|
0.0004ND
|
0.0004ND
|
0.0004ND
|
0.0004ND
|
0.0004ND
|
0.0004ND
|
≤0.01
|
0.00
|
Ⅰ
|
| 砷
|
mg/L
|
0.0020
|
0.0020
|
0.0020
|
0.0020
|
0.0020
|
0.0020
|
≤0.05
|
0.00
|
Ⅰ
|
| 汞
|
mg/L
|
0.00004ND
|
0.00004ND
|
0.00004ND
|
0.00004ND
|
0.00004ND
|
0.00004ND
|
≤0.0001
|
0.00
|
Ⅰ
|
| 镉
|
mg/L
|
0.0001ND
|
0.0001ND
|
0.0001ND
|
0.0001ND
|
0.0001ND
|
0.0001ND
|
≤0.005
|
0.00
|
Ⅰ
|
| 六价铬
|
mg/L
|
0.004ND
|
0.004ND
|
0.004ND
|
0.004ND
|
0.004ND
|
0.004ND
|
≤0.05
|
0.00
|
Ⅰ
|
| 铅
|
mg/L
|
0.001ND
|
0.001ND
|
0.001ND
|
0.001ND
|
0.001ND
|
0.001ND
|
≤0.05
|
0.00
|
Ⅰ
|
| 氰化物
|
mg/L
|
0.004ND
|
0.004ND
|
0.004ND
|
0.004ND
|
0.004ND
|
0.004ND
|
≤0.2
|
0.00
|
Ⅰ
|
| 挥发酚
|
mg/L
|
0.0003ND
|
0.0003ND
|
0.0003ND
|
0.0003ND
|
0.0003ND
|
0.0003ND
|
≤0.005
|
0.00
|
Ⅰ
|
| 石油类
|
mg/L
|
0.01
|
0.02
|
0.01
|
0.01
|
0.02
|
0.01
|
≤0.05
|
0.00
|
Ⅰ
|
| 阴离子表面活性剂
|
mg/L
|
0.05ND
|
0.05ND
|
0.05ND
|
0.05ND
|
0.05ND
|
0.05ND
|
≤0.2
|
0.00
|
Ⅰ
|
| 硫化物
|
mg/L
|
0.005ND
|
0.005ND
|
0.005ND
|
0.005ND
|
0.005ND
|
0.005ND
|
≤0.2
|
0.00
|
Ⅰ
|
| 粪大肠菌群
|
个/L
|
3500
|
2400
|
3500
|
2400
|
3500
|
3133
|
≤10000
|
0.00
|
Ⅲ
|
| 断面水 质级别
|
良好
|
主要 污染物
|
/
|
|||||||