Distribution and pollution assessment of heavy metals in surface sediments in Xiaoqing river estuary and its adjacent sea of Laizhou bay

3rd International Conference on Energy Equipment Science and Engineering

Wang, Li^1 ; Luo, Xianxiang^1 ; Fan, Yuqing^1

Institute of Coastal Environmental Pollution Control, Key Laboratory of Marine Environment and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao

266100, China^1

关键词: Marine sediments;    Metal concentrations;    Monitoring results;    Pollution assessment;    Potential ecological risk;    Sampling stations;    Surface sediments;    Xiaoqing rivers;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/128/1/012184/pdf
DOI  :  10.1088/1755-1315/128/1/012184

来源: IOP

【 摘 要 】

In this paper, the monitoring results of four heavy metals Cu, Pb, Zn and Hg at 10 sampling stations in Xiaoqing river estuary and its adjacent sea of Laizhou Bay in November 2008 were analyzed and evaluated. The results showed that the concentrations of heavy metals in the steam channel and estuary are higher than those in the adjacent sea, and the metal concentrations were below the standard for I class of marine sediment quality, excepting the station 2 in the steam channel and station 5 in the estuary. The assessment of the single-factor pollution index showed that the overall pollution level of the study area was relatively low, but there was serious pollution phenomenon in individual station. The potential ecological risk of heavy metals in the surface sediments was generally at a low level, and Hg had the highest potential risk.