| 湘江乌龙嘴断面监测数据统计
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| 采样日期:2016.10.8
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| 监测项目
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单位
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采样位置
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最低值
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最高值
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平均值
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超标率(%)
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检测下限
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单项水质类别
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||
| 左
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中
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右
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| 水温
|
摄氏度
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26
|
26
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26
|
26
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26
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26
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/
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/
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/
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| 流量
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m3/s
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/
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/
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/
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/
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/
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/
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/
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/
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/
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| 电导率
|
μS/cm
|
206
|
204
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199
|
199
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206
|
203
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/
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/
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/
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| pH
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无量纲
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6.82
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6.86
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6.85
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6.82
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6.86
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6.84
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0.00
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/
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Ⅰ
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| 溶解氧
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mg/L
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6.92
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6.66
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6.42
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6.42
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6.92
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6.67
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0.00
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0.2
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Ⅰ
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| 高锰酸盐指数
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mg/L
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1.83
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1.91
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1.90
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1.83
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1.91
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1.88
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0.00
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0.5
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Ⅰ
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| 化学需氧量
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mg/L
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13.6
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12.1
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12.3
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12.1
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13.6
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12.7
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0.00
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5
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Ⅰ
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| 生化需氧量
|
mg/L
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2.72
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2.42
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2.46
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2.42
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2.72
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2.53
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0.00
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0.5
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Ⅰ
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| 氨氮
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mg/L
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0.542
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0.582
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0.560
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0.542
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0.582
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0.561
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0.00
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0.025
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Ⅲ
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| 总氮
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mg/L
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2.75
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3.03
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2.89
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2.75
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3.03
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2.89
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/
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0.05
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/
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| 总磷
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mg/L
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0.117
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0.110
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0.105
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0.105
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0.117
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0.111
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0.00
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0.01
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Ⅲ
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| 铜
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mg/L
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0.001
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0.001
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0.001
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0.001
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0.001
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0.001
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0.00
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0.01
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Ⅰ
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| 锌
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mg/L
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0.01ND
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0.01ND
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0.01ND
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0.01ND
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0.01ND
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0.01ND
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0.00
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0.01
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Ⅰ
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| 氟化物
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mg/L
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0.29
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0.28
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0.28
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0.28
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0.29
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0.28
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0.00
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0.05
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Ⅰ
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| 硒
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mg/L
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0.0004ND
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0.0004ND
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0.0004ND
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0.0004ND
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0.0004ND
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0.0004ND
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0.00
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0.0002
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Ⅰ
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| 砷
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mg/L
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0.002
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0.0024
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0.0027
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0.002
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0.0027
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0.0024
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0.00
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0.0005
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Ⅰ
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| 汞
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mg/L
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0.00004ND
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0.00004ND
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0.00004ND
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0.00004ND
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0.00004ND
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0.00004ND
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0.00
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0.00002
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Ⅰ
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| 镉
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mg/L
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0.0001ND
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0.0001ND
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0.0001ND
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0.0001ND
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0.0001ND
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0.0001ND
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0.00
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0.0001
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Ⅰ
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| 六价铬
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mg/L
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0.004ND
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0.004ND
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0.004ND
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0.004ND
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0.004ND
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0.004ND
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0.00
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0.004
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Ⅰ
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| 铅
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mg/L
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0.001
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0.001
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0.001
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0.001
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0.001
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0.001
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0.00
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0.003
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Ⅰ
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| 氰化物
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mg/L
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0.004ND
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0.004ND
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0.004ND
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0.004ND
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0.004ND
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0.004ND
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0.00
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0.004
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Ⅰ
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| 挥发酚
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mg/L
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0.002ND
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0.002ND
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0.002ND
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0.002ND
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0.002ND
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0.002ND
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0.00
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0.002
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Ⅰ
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| 石油类
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mg/L
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0.04ND
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0.04ND
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0.04ND
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0.04ND
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0.04ND
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0.04ND
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0.00
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0.04
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Ⅰ
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| 阴离子表面活性剂
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mg/L
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0.05ND
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0.05ND
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0.05ND
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0.05ND
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0.05ND
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0.05ND
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0.00
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0.05
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Ⅰ
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| 硫化物
|
mg/L
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0.02ND
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0.02ND
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0.02ND
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0.02ND
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0.02ND
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0.02ND
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0.00
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0.02
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Ⅰ
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| 粪大肠菌群
|
个/L
|
2800
|
2200
|
3500
|
2200
|
3500
|
2833
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0
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/
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Ⅲ
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| 断面水 质级别
|
良
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主要污染物
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/
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