Abstract:Concentrations of six heavy metals, such as Cu, Pb, Zn, Cd, Cr and Hg in shellfish were analyzed in the intertidal zone of 22 typical islands in China during 2007~2008. Zn and Cu had comparatively higher concentrations than the others, while Hg had the lowest concentration in shellfish. Comparison of the metal concentrations in this study with those obtained during 1989 and 1992 suggested that no significant changes in metal concentration occurred since 1992. In addition, the pollution level of heavy metals was assessed based on the Standards for Marine Biological Quality. The results showed that concentrations of Zn exceeded seriously the standards in some sea areas, Cu and Cd took second place, and others were the lightest. The cause may be the discharges of land based pollutant and the different accumulation ability of heavy metals in shellfish.
孙元敏, 马志远, 黄海萍. 我国海岛潮间带贝类体中重金属含量及其评价[J]. 中国环境科学, 2015, 35(2): 574-578.
SUN Yuan-Min, MA Zhi-Yuan, HUANG Hai-Ping. Contamination and assessment of heavy metals in shellfish in the intertidal zone of sea islands in China. CHINA ENVIRONMENTAL SCIENCECE, 2015, 35(2): 574-578.