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Health Risk of PCBs and DDTs in Seafood from Southern Iran

机译:伊朗南部海鲜中多氯联苯和滴滴涕的健康风险

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摘要

Levels of polychlorinated biphenyls (PCBs) congeners and dichlorodiphenyl-trichloroethane and its metabolites (DDTs) were measured in 18 species of fish, crab, shrimp, and bivalve samples collected from the northern region of the Persian Gulf in Iran. The levels of ΣPCBs varied from 259.92 ± 31.04 ng/g to 1648.88 ± 176.96 ng/g in lipid weight. CB118 showed the highest concentration. ΣTDDT variations ranged from ND to 570.45 ± 806.74 ng/g in lipid weight. Health risk was assessed by estimating both dietary intakes and screening values (SVs). Daily intake levels were much lower than the Food and Agriculture Organization (FAO)/World Health Organization (WHO) standards for PCBs and DDTs. Based on an average bodyweight of 73 kg and consumption rates of 0.055 kg/person, day, the SVs for the carcinogen and non-carcinogen effects of PCB and DDT were calculated. Average concentrations of PCBs and DDTs showed that the levels of PCBs exceeded the established SV for carcinogens. This finding suggests the need to enhance risk management regarding seafood consumption through public advisory.
机译:在伊朗波斯湾北部地区采集的18种鱼,蟹,虾和双壳类动物样品中,测定了多氯联苯(PCBs)同源物和二氯二苯基三氯乙烷及其代谢物(DDT)的水平。脂质重量的ΣPCB含量从259.92±31.04 ng / g到1648.88±176.96 ng / g不等。 CB118显示最高浓度。 ΣTDDT的脂重变化范围为ND至570.45±806.74 ng / g。通过估计饮食摄入量和筛查值(SVs)评估健康风险。每日摄入水平远低于粮食及农业组织(FAO)/世界卫生组织(WHO)的PCBs和DDTs标准。根据平均体重73千克和每天0.055千克/人的消耗率,计算出PCB和DDT的致癌和非致癌作用的SV。多氯联苯和滴滴涕的平均浓度表明,多氯联苯的含量超过了确定的致癌物SV。这一发现表明有必要通过公共咨询来加强有关海鲜消费的风险管理。

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