WATER POLLUTION IN THE RIVER MOUTHS AROUND BOHAI BAY

作     者：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 onErosion and Sedimentation, Beijing, 100084, China.China Institute of Water Resources and Hydropower Research. Beijing 100084, China, 

作者机构：Dr. Asso. Prof. International Research and Training Center on Erosion and Sedimentation Beijing 100044China Dr. Asso. Prof. International Research and Training Center on Erosion and Sedimentation Beijing 100044China Prof. Dept. Of Hydraulic Engineering Tsinghua University & International Research and Training Center on Erosion and Sedimentation Beijing China Institute of Water Resources and Hydropower ResearchBeijing100084China 

出 版 物：《International Journal of Sediment Research》 (国际泥沙研究(英文版))

年 卷 期：2003年第18卷第4期

页      面：326-332页

学科分类：08[工学] 0815[工学-水利工程] 

基　　金：国家自然科学基金(50379056  50318003) 

主　　题：River mouth Water quality Pollution. Red tide Bohai Bay 

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.