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《Journal of Fujian Fisheries》 2015-01
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HCHs and DDTs residues in aquatic products from Zhangjiang River Estuary and human health risk assessment

LUO Dong-lian;JIANG Lin-lin;YU ying;YE mei;YANG Miao-feng;MO Hao-rong;Fisheries Research Institute of Fujian;  
The residues of Hexachlorocyclohexanes( HCHs) and Dichloro-diphenyl-tricgloroethanes( DDTs) in aquatic products from Zhangjiang River Estuary were detected by using GC-ECD. The residues levels,compositions of HCHs and DDTs,as well as the human health risk assessment were discussed. The results showed that,the residues of HCHs in fishes,shrimps and shellfishes ranged from undetected to 1. 42ng·g-1with an average of 0. 842 ng·g-1,undetected to 0. 762 ng·g-1with an average of 0. 374 ng·g-1,undetected to 1. 59 ng·g-1with an average of 1. 04 ng·g-1,in wet weight respectively; and the residues of DDTs ranged from 3. 40 ng·g-1to 432 ng·g-1with an average of 96. 3 ng·g-1,1. 53 ng. g-1to 12. 1 ng·g-1with an average of 6. 79 ng·g-1,9. 02 ng·g-1to 78. 0 ng·g-1with an average of 37. 0 ng·g-1,in wet weight respectively. The DDTs residuals were in the order of fishes shellfishes shrimps,which were higher than HCHs residuals in aquatic products. Compared to other areas,the residues of HCHs and DDTs in aquatic products from Zhangjiang River Estuary were at the medium level. The composition characteristics of HCHs and DDTs showed that there was no new HCHs inputs in the survey area recently,however new DDT inputs in few area might be related to the recent usage of dicofol. The residual amounts of DDTs and HCHs in the collected aquatic products were still lower than the maximum residue limits for pesticides in food set by China( GB2763-2014),which were also lower than the maximum residue limits set by Japan,European Union and other developed countries and regions. Therefore,DDTs and HCHs did little harm to human health through dietary exposure in the Zhangjiang River areas.
【Fund】: 国家海洋局海洋公益性行业科研专项(No.201305043-4;No.201205009-4);; 福建省渔业“五新”科技推广项目[闽海渔科(2012)001号]
【CateGory Index】: X56;X820.4
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