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Bioaccumulation and health risk assessment of heavy metals to bivalve species in Daya Bay (South China Sea): Consumption advisory

文献类型： 外文期刊

作者： Yuan, Yuan 1 ; Sun, Ting 1 ; Wang, Huijuan 2 ; Liu, Yafeng 1 ; Pan, Ye 1 ; Xie, Yujing 1 ; Huang, Honghui 2 ; Fan, Zhengq 1 ;

作者机构： 1.Fudan Univ, Dept Environm Sci & Engn, Shanghai 200438, Peoples R China

2.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou 510300, Peoples R China

关键词： Heavy metals; Bioaccumulation; Filter feeder; Bivalves; Health risk assessment; Maximum allowable consumption rate

期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.553； 五年影响因子：5.907 ）

ISSN： 0025-326X

年卷期： 2020 年 150 卷

页码：

收录情况： SCI

摘要： Bivalves are one of the key components of the biogeochemical cycle in the marine system, and respond to heavy metal (HM) sensitively as filter feeders. To determine relationship of HMs in edible bivalve and seawater and HM effects on human health when digesting bivalves, HMs were analyzed in bivalves and seawater. The results showed that the mean HM concentrations in bivalves decreased in the order of Zn > Cu > Cr > Pb > As > Cd > Hg. Generally, all the bioconcentration factor values of bivalves were higher than 100, suggesting that bivalves have a high bioaccumulation ability. Nonmetric multidimensional scaling analysis indicated that all bivalves have a high bioaccumulation capacity for Cu and Zn. It was found that there are health risks associated with consuming bivalves, and children are more vulnerable than adults. Finally, the maximum allowable consumption rates of non-carcinogenic and carcinogenic risk were determined. These results provide the underlying insights needed to guide the consumption of seafood.

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