Tissue distribution and exposure risk assessment of dioxins, dioxin-like polychlorinated biphenyls and perfluoroalkyl substances in red swamp crayfish
文献类型： 外文期刊
作者： Wang, Xianli 1 ; Rao, Qinxiong 1 ; Zhang, Qicai 1 ; Liu, Chengbin 1 ; Li, Yameng 1 ; Wang, Danhe 1 ; Huang, Di 1 ; Li, Yanshen 2 ; Yao, Chunxia 1 ; Song, Weiguo 1 ;
作者机构： 1.Shanghai Acad Agr Sci, Inst Agrifood Stand & Testing Technol, Shanghai 201403, Peoples R China
2.Yantai Univ, Coll Life Sci, Yantai 264000, Shandong, Peoples R China
3.Shanghai Engn Res Ctr Agroprod Qual & Safety, Shanghai 201403, Peoples R China
关键词： Red swamp crayfish; Persistent organic pollutants; Tissue distribution; Health risk
期刊名称：FOOD CONTROL （ 影响因子：5.6； 五年影响因子：5.4 ）
ISSN： 0956-7135
年卷期： 2024 年 166 卷
页码：
收录情况： SCI
摘要： Significant attention has been paid to the adverse effects of dioxins, dioxin-like polychlorobiphenyls (DL-PCBs) and per-and polyfluoroalkyl substances (PFAS) in environment and food on ecosystem and human health. However, limited information exists regarding the occurrence, tissue distribution and exposure risk of these pollutants in crayfish. This study investigated tissue-specific distribution characteristics, influence factors and exposure risk of dioxins, DL-PCBs and PFAS in crayfish. Dioxins, DL-PCBs, and PFAS were detected in crayfish samples, with concentrations ranging from 0.361 to 1.91 pg TEQ g- 1 for sum dioxins and DL-PCBs, and 1.54-21.2 ng g- 1 for sum PFAS. The highest concentrations of dioxins, DL-PCBs TEQ and total PFAS were found in crayfish viscera and accounting for over 69% of the relative body burden (RBBs) of these pollutants. The specific-tissue distribution of these pollutants linked to tissue fat and protein content and log Kow and molecular weights of homologues. The consumption of crayfish edible tissue posed no health risks from exposure to dioxins and DL-PCBs as well as sum 4 PFAS in adults. However, consumption of crayfish viscera significantly increased exposure risk. This study can provide valuable insights into the tissue-specific distribution and human exposure risks associated with dioxins, DL-PCBs and PFAS in crayfish.
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