Arsenic contamination in the freshwater fish ponds of Pearl River Delta: bioaccumulation and health risk assessment

文献类型： 外文期刊

第一作者： Cheng, Zhang

作者： Cheng, Zhang;Wu, Sheng Chun;Wong, Chris Kong-Chu;Wong, Ming-Hung;Cheng, Zhang;Wu, Sheng Chun;Wong, Chris Kong-Chu;Wong, Ming-Hung;Chen, Kun-Ci;Li, Kai-Bin;Nie, Xiang-Ping;Wu, Sheng Chun;Wong, Ming-Hung;Wu, Sheng Chun;Wong, Ming-Hung

作者机构：

关键词： Arsenic;Environmental assessment;Bioaccumulation;Biomagnification;Aquaculture fish;Pearl River Delta

期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：4.223； 五年影响因子：4.306 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： This study investigated the extent of arsenic (As) contamination in five common species of freshwater fish (northern snakehead [Channa argus], mandrarin fish [Siniperca chuatsi], largemouth bass [Lepomis macrochir-ous], bighead carp [Aristichthys nobilis] and grass carp [Ctenopharyngodon idellus]) and their associated fish pond sediments collected from 18 freshwater fish ponds around the Pearl River Delta (PRD). The total As concentrations detected in fish muscle and sediment in freshwater ponds around the PRD were 0.05-3.01 mgkg~(-1) wet weight (w. wt) and 8.41-22.76 mgkg~(-1) dry weight (d. wt), respectively. In addition, the As content was positively correlated (p<0.05) to total organic carbon (TOC) contents in sediments. Biota sediment accumulation factor (BSAF) showed that omnivorous fish and zooplankton accumulated higher concentrations of heavy metals from the sediment than carnivorous fish. In addition, feeding habits of fish also influence As accumulation in different fish species.

分类号： X5

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