Quantification of vertical and horizontal loss of Hg in Jiaozhou Bay 1988

3rd International Conference on Energy Equipment Science and Engineering

Yang, Dongfang^1,2 ; Zhang, Longlei^1 ; Wang, Qi^1 ; Zhao, Lianguo^1 ; Li, Haixia^1

Accountancy Shool, Xijing University, Xian

710123, China^1

North China Sea Environmental Monitoring Center, SOA, Qingdao

266033, China^2

关键词: Bottom water;    Jiaozhou Bay;    Migration distance;    Open water;    Sampling site;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/128/1/012033/pdf
DOI  :  10.1088/1755-1315/128/1/012033

来源: IOP

【 摘 要 】

This paper quantified the horizontal and vertical loss of Hg in Jiaozhou Bay based on investigation data on surface and bottom waters in six sampling sites in April and July 1988. Results showed that the horizontal absolute loss amounts of Hg contents in surface and bottom waters were 0.004-0.048 μg L-1, and the horizontal relative loss amounts of Pb contents were 8.16-64.00%, respectively. The vertical absolute dilution amounts of Pb contents were 0.000-0.008 μg L-1, and the vertical relative dilution amounts were 0.00-16.32%. The vertical absolute accumulation amounts of Pb contents were 0.003-0.042 μg L-1, and the vertical relative accumulation amounts were 6.25-56.00%. During the transporting process through the bay mouth, no matter from the internal waters to the open water, or from the open waters to the internal waters, the loss of Hg at horizontal direction could be 8.16-64.00%. In case of the horizontal loss of Hg in surface waters was relative high/low, the horizontal loss of Hg in bottom waters would be also relative high/low. The changes of Hg contents in surface and bottom waters were determined by the migration distance of Hg in surface waters.