Dietary intake and potential health risk of DDTs and PBDEs via seafood consumption in South China

被引:126
作者
Guo, Jianyang [1 ,2 ]
Wu, Fengchang [2 ]
Shen, Rulang [1 ]
Zeng, Eddy Y. [1 ]
机构
[1] Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China
[2] Chinese Acad Sci, State Key Lab Environm Geochem, Inst Geochem, Guiyang 550002, Peoples R China
基金
中国国家自然科学基金;
关键词
Dietary intake; Risk assessment; Polybrominated diphenyl ethers; Dichlorodiphenyltrichloroethane; Seafood; South China; POLYBROMINATED DIPHENYL ETHERS; BROMINATED FLAME RETARDANTS; PEARL RIVER DELTA; ORGANOCHLORINE PESTICIDES OCPS; POLYCHLORINATED-BIPHENYLS PCBS; MUSSELS MYTILUS-EDULIS; MARKET-BASKET; FISH CONSUMPTION; COASTAL WATERS; HUMAN EXPOSURE;
D O I
10.1016/j.ecoenv.2010.08.009
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A total of 602 seafood samples, including fish, shrimps, crabs and molluscs, were analyzed for a suite of persistent halogenated compounds. The residual levels of DDTs (sum of o,p' - and p,p'-DDT, DDD, and DDE) and polybrominated diphenyl ethers (PBDEs) varied significantly among different species, and ranged from non-detectable (nd) to 699 ng/g and nd to 5.93 ng/g, respectively. Comparison of the levels of DDTs and PBDEs in mussel samples worldwide suggested that South China is probably one of the most DDT-polluted areas, but is moderate at most in terms of PBDE contamination. Combined with a recent dietary survey at the same sampling locations, dietary intakes of DDTs and PBDEs by local residents via seafood consumption for all age groups were estimated to be 147-564 and 4.7-18.5 ng/day, or 8.5-12.9 and 0.27-0.46 ng/kg bw/day, respectively. Among the different seafood types, fish contributed the largest portion of the dietary intakes of DDTs (57%), followed by molluscs (38%). Similarly, the dietary intakes of PBDEs were also dominated by fish (45%) and molluscs (45%). Assessment based on several available guidelines suggested that though no significant human health risk associated with the dietary intake of PBDEs, a lifetime cancer risk from dietary exposure to DDTs remains a probability. Because dietary intake of DDTs was dominated by fish and molluscs, added concern should be paid to fish and molluscs. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码:1812 / 1819
页数:8
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