| WATER POLLUTION IN THE RIVER MOUTHS AROUND BOHAI BAY |
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| 作者姓名： | Cheng LIU Zhao-Yin WANG and Yun HE Dr. Asso. Prof. International Research and Training Center on Erosion and Sedimentation Beijing .
China Prof.. Dept. of Hydraulic Engineering Tsinghua University & International Research and Training Center on
Erosion and Sedimentation Beijing China.
China Institute of Water Resources and Hydropower Research. Beijing China |
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| 作者单位： | Cheng LIU，Zhao-Yin WANG and Yun HE Dr.，Asso. Prof.，International Research and Training Center on Erosion and Sedimentation，Beijing 100044.
China，Prof.. Dept. of Hydraulic Engineering，Tsinghua University & International Research and Training Center on
Erosion and Sedimentation，Beijing，100084，China.
China Institute of Water Resources and Hydropower Research. Beijing 100084，China |
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| 摘 要： | Twelve water samples were collected and analyzed. The samples were taken from the river mouths around Bohai Bay including the Jiyun. New Yongding, Haihe, Dagu, Duliujian, Qingjinghuang, Qikou, Dakou, and Yellow Rivers, and tested for concentrations of heavy metals, arsenic, total nitrogen (TN) and total phosphorus (TP). The results show that the river mouths are polluted and the water quality exceeds Class V of the Environmental Quality Standard for Surface Water (EQSSW). The main pollutants are Hg, nitrogen (N) and phosphorus (P). The concentrations of the other pollutants are within Class II of the Standard. The Hg content in the Haihe River mouth is now 10 times higher than it was 20 years ago, indicating that the accelerating water pollution has reached an alarming level. The high concentrations of N and P cause eutrophication of the waters. Analysis indicates that the terrestrial pollutants and nutrients are the main cause of frequently occurring red tides in the Bohai Sea.
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WATER POLLUTION IN THE RIVER MOUTHS AROUND BOHAI BAY |
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| Cheng LIU,Zhao-Yin WANG and Yun HE Dr.,Asso. Prof.,International Research and Training Center on Erosion and Sedimentation,Beijing .
China,Prof.. Dept. of Hydraulic Engineering,Tsinghua University & International Research and Training Center on
Erosion and Sedimentation,Beijing,,China.
China Institute of Water Resources and Hydropower Research. Beijing ,China.WATER POLLUTION IN THE RIVER MOUTHS AROUND BOHAI BAY[J].International Journal of Sediment Research,2003,18(4). |
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| Authors: | Cheng Liu Zhao-Yin WANG Yun He |
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| Abstract: | Twelve water samples were collected and analyzed. The samples were taken from the river mouths around Bohai Bay including the Jiyun. New Yongding, Haihe, Dagu, Duliujian, Qingjinghuang, Qikou, Dakou, and Yellow Rivers, and tested for concentrations of heavy metals, arsenic, total nitrogen (TN) and total phosphorus (TP). The results show that the river mouths are polluted and the water quality exceeds Class V of the Environmental Quality Standard for Surface Water (EQSSW). The main pollutants are Hg, nitrogen (N) and phosphorus (P). The concentrations of the other pollutants are within Class II of the Standard. The Hg content in the Haihe River mouth is now 10 times higher than it was 20 years ago, indicating that the accelerating water pollution has reached an alarming level. The high concentrations of N and P cause eutrophication of the waters. Analysis indicates that the terrestrial pollutants and nutrients are the main cause of frequently occurring red tides in the Bohai Sea. |
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| Keywords: | River mouth Water quality Pollution Red tide Bohai Bay |
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