大亚湾海域生物体中重金属含量状况及污染风险评估

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中图分类号：P745 文献标志码：A 文章编号：1005—9857（2025）07—0121—12

Heavy Metal Content and Pollution Risk Assessment of Marine Creatures in Daya Bay Area

ZHOU Zhikai， WANG Junxing， CHEN Bingling，HUANG Lixia，ZHONG Jinming （Marine TechnologyCenterofHuizhou，Huizhou 5l6ooo，China）

Abstract： This study used 29 species of marine creatures （including fish，crustaceans，and mollusks）from two cross-sections on the east and west sides of the Daya Bay in Huizhou in the winter of to analyze the content characteristics of heavy metals Cu，Pb， Zn，Cd，and Hg intheir bodies. Single Factor Index （SFI） and Metal Pollution Index （MPI） was used to evaluate the degree of heavy metal pollution，and data from 1988 to 2Ol5 were compared. Using SFI and MPI to discuss the changes of heavy metal content in marine creatures in Daya Bay. The results showed that：（1） The average content of heavy metals Cu ，Pb， Zn ，Cd，and Hg in fish，crustaceans，and mollusks in the Daya Bay area reached the first-class standard，and there was basically no heavy metal pollution. （2） The MPI values of marine creatures in the Daya Bay area followed the order of mollusks>crustaceans > fish.（3）The concentration capacity of marine economic organisms in water quality was Cu>Cd>Zn>Hg>Pb ， and the concentration capacity of heavy metals in sediments was Φ]g>Cd>Cu>Zn>Pb.（4）From 1988 to the winter of 20l7，the overall heavy metal content in marine creatures in Daya Bay showed a slow downward trend. Except for the significant changes in Pb content in fish and crustaceans，the content of other indicators tends to stabilize.

Keywords： Daya Bay，Quality of marine creatures，Heavy metals，Single Factor Index，Metal Pollution Index

0 引言

大亚湾海域资源丰富，生物种类多样。（剩余12003字）