渤海典型海湾海水中痕量金属和多环芳烃的风险评估
Risk assessment of trace metals and polycyclic aromatic hydrocarbons in seawater of typical bays in the Bohai Sea.
作者信息
Zhang Xiaoyu, Sun Tao, Li Fei, Ji Chenglong, Wu Huifeng
机构信息
CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences (CAS), Qingdao 266071, PR China.
出版信息
Mar Pollut Bull. 2024 Mar;200:116030. doi: 10.1016/j.marpolbul.2024.116030. Epub 2024 Jan 23.
The ecological risks of trace metals (Cu, Zn, As, Cd, Pb, and Hg) and PAHs in seawater from three typical bays of the Bohai Sea (the Liaodong Bay, Bohai Bay, and Laizhou Bay) were comprehensively assessed by recompiling 637 sites. Results highlighted that scrutiny should be given to the ecological risks of Cu (3.80 μg/L) in the Bohai Bay and Hg (0.23 μg/L) in the Laizhou Bay. Conversely, the Liaodong Bay exhibited negligible ecological risks related to trace metals. The risks of ΣPAHs in the Liaodong Bay, Bohai Bay, and Laizhou Bay were moderate, with mean concentrations of 368.16 ng/L, 731.93 ng/L, and 187.58 ng/L, respectively. The source allocation of trace metals and PAHs required consideration of spatial variability and anthropogenic factors, which greatly affected the distribution and composition of these pollutants. The combined ecological risks in the Bohai Bay (6.80 %) and Laizhou Bay (5.43 %) deserved more attention.
通过重新整理637个站点的数据，对渤海三个典型海湾（辽东湾、渤海湾和莱州湾）海水中痕量金属（铜、锌、砷、镉、铅和汞）和多环芳烃的生态风险进行了综合评估。结果表明，应关注渤海湾中铜（3.80μg/L）和莱州湾中汞（0.23μg/L）的生态风险。相反，辽东湾与痕量金属相关的生态风险可忽略不计。辽东湾、渤海湾和莱州湾中多环芳烃总量的风险为中等，平均浓度分别为368.16ng/L、731.93ng/L和187.58ng/L。痕量金属和多环芳烃的源分配需要考虑空间变异性和人为因素，这些因素极大地影响了这些污染物的分布和组成。渤海湾（6.80%）和莱州湾（5.43%）的综合生态风险值得更多关注。
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