Comprehensive Investigation and Assessment of Nutrient and Heavy Metal Contamination in the Surface Water of Coastal Bohai Sea in China  

作　　者：LIN Heshan LI Hongjun YANG Xiaolong XU Zizhou TONG Yindong YU Xingguang 

机构地区：[1]College of Environmental Science and Engineering,Ocean University of China,Qingdao 266100,China [2]Marine Ecology Department,National Marine Environmental Monitoring Center,Dalian 116023,China [3]School of Environmental Science and Engineering,Tianjin University,Tianjin 300072,China [4]Third Institute of Oceanography,Ministry of Natural Resources,Xiamen 361005,China

出　　处：《Journal of Ocean University of China》2020年第4期843-852,共10页中国海洋大学学报（英文版）

基　　金：grant from the National Natural Science Foundation of China(No.31572595).

摘　　要：With the rapid development of industrialization and urbanization of coastal regions,eutrophication and metal pollution have caused serious environmental problems in China.To better understand the potential environmental risks associated with nutrients and heavy metals,the surface water was comprehensively investigated in the coastal Bohai Sea.A total of 150 sites were sampled from seven coastal regions,and the concentrations of nutrients(DIN and DIP)and metals(Cd,Pb,Zn,Cu,Cr,As and Hg)in the surface seawater were measured.The results showed that the DIN concentration of about 50%sites exceeded the Grade-I of Seawater Quality Standard of China.Due to high concentrations of DIN,the status of eutrophication was serious in the Bohai Bay and Shuangtaizi Estuary.According to Seawater Quality Standard of China,Pb,Zn,Hg and Cu were the main metal pollutants in the coastal Bohai Sea.There was generally low ecological risk caused by heavy metals,but certain hotspots existed near Shuangtaizi Estuary and Changxingdao Island.

关 键 词：Bohai Sea EUTROPHICATION heavy metal ecological risk assessment species sensitivity distribution 

分 类 号：X55[环境科学与工程—环境工程]