Bioaccumulation and human health risk assessment of DDT and its metabolites (DDTs) in yellowfin tuna (Thunnus albacares) and their prey from the South China Sea
文献类型： 外文期刊
作者： Sun, Run-Xia 1 ; Sun, Yue 2 ; Xie, Xian-De 3 ; Yang, Bing-Zhong 4 ; Cao, Lin-Ying 3 ; Luo, Shuang 3 ; Wang, Yang-Yang; 1 ;
作者机构： 1.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Peoples R China
2.Shenzhen Univ, Hlth Sci Ctr, Sch Biomed Engn, Shenzhen 518060, Peoples R China
3.Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China
4.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China
5.Minist Agr & Rural Affairs, Key Lab Open Sea Fishery Dev, Guangzhou 510300, Peoples R China
6.Henan Univ, Coll Environm & Planning, Kaifeng 475004, Peoples R China
7.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China
关键词： DDTs; Yellowfin tuna; Biomagnification; Dietary exposure; South China Sea
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 158 卷
页码：
收录情况： SCI
摘要： DDTs were detected in yellowfin tuna (Thunnus albacares, 92.1-221.8 ng.g(-1) lipid weight) and their prey (54.9-93.5 ng.g(-1) lipid weight) from the South China Sea (SCS). DDT levels reported in this study were lower than those of the previous studies indicated the recent mitigation of DDT contamination in the SCS. Higher DDT levels were observed in fat abdominal muscle than lean dorsal muscle in adult yellowfin tuna. Meanwhile, DDT levels in adult yellowfin tuna were higher than the young ones. The composition profiles of DDT and its metabolites suggested DDTs in fish in the SCS were mainly derived from the historical use of technical DDTs. DDTs were biomagnified through food chains with the trophic magnification factor of 2.5. Risk assessment results indicated that dietary exposure to DDTs through lifetime fish consumption from the SCS would pose lithe cancer and noncarcinogenic risk to coastal residents.
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