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首页> 外文期刊>Journal of Hazardous Materials >Organic halogenated contaminants in mother-fetus pairs of harbor seals (Phoca vitulina richardii) from Alaska, 2000-2002
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Organic halogenated contaminants in mother-fetus pairs of harbor seals (Phoca vitulina richardii) from Alaska, 2000-2002

机译：2000年至2002年来自阿拉斯加的母海豹对（Phoca vitulina richardii）中的有机卤化污染物

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摘要

This study measured organochlorine pesticides (OCPs) including hexachlorocyclohexanes (HCHs), hexachlorobenzene (HCB), heptachlor and dichlorodiphenyltrichloroethanes (DDTs), polychlorinated biphenyls (PCBs), polychlorinated naphthalenes (PCNs) and polybrominated diphenyl ethers (PBDEs) in tissues of six mother-fetus pairs of harbor seals that were hunted for subsistence in Alaska waters of the Northern Pacific Ocean. These data suggest that significant amounts of these contaminants were transferred from mother harbor seals to fetuses during pregnancy and distributed among fetal organs. The tissue distribution depended on the chemical groups, the specific compounds in the groups and the target organs. Concentration profiles of ∑OCPs,∑PCBs, ∑PCNs and ∑PBDEs were remarkably similar among maternal blubber, liver, and placenta, fetal blubber, and liver (except for HCHs), possibly indicating that the placenta did not serve as a barrier for all of the compounds analyzed. DDTs, HCB, HCHs, PCBs and PBDEs could penetrate the placenta and accumulate in the blubber of the fetus in utero, while HCHs, PCBs and PBDEs penetrated the placenta and accumulated more preferentially in the fetal liver than in the fetal brain in comparison with DDTs and HCB. Heptachlor and PCNs penetrated the placenta and accumulated in the fetal liver and brain instead of fetal blubber. Similar maternal transfer trends for OCPs, PCBs, PCNs and PBDEs were shown by fetal to maternal (FM) blubber ratios and FM liver ratios. Prenatal transfer of these toxic contaminants from mothers to fetus presumably through the placenta may pose health risks to the fetus during early development.
机译：这项研究测量了六个组织中六氯环己烷（HCH），六氯苯（HCB），七氯和二氯二苯基三氯乙烷（DDT），多氯联苯（PCB），多氯萘（PCN）和多溴二苯醚（PBDEs）的有机氯农药（OCP）。在北太平洋的阿拉斯加水域被捕以谋生的海豹胎儿对。这些数据表明，这些污染物在怀孕期间从母海豹转移到胎儿，并在胎儿器官之间分布。组织分布取决于化学基团，基团中的特定化合物和靶器官。孕妇的脂肪，肝脏和胎盘，胎儿的脂肪和肝脏（六氯环己烷除外）中的∑OCPs，∑PCBs，∑PCNs和∑PBDEs的浓度分布显着相似，可能表明胎盘并非对所有人的屏障分析的化合物。与滴滴涕相比，滴滴涕，六氯苯，六氯环己烷，多氯联苯和多溴二苯醚可能会渗透到胎盘并在子宫内的胎儿的脂肪中积聚，而六氯环己烷，多氯联苯和多溴二苯醚会渗透到胎盘中，并且在胎儿肝脏中的积累要比在胎脑中优先。和HCB。七氯和PCNs渗透到胎盘并积累在胎儿的肝脏和大脑中，而不是胎儿的脂肪。 OCP，PCBs，PCN和PBDEs的母体转移趋势通过胎儿与母体（FM）的脂肪比率和FM肝脏比率显示。这些有毒污染物可能会通过胎盘从母亲产前转移到胎儿，这可能会对胎儿的早期发育造成健康危害。

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  • 来源
    《Journal of Hazardous Materials》 |2012年第15期|p.72-78|共7页
  • 作者

    Dongli Wang; Shannon Atkinson; Anne Hoover-Miller; Weilin L Shelver; Qing X. Li;

  • 作者单位

    Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa. Honolulu, HI 96822, USA,Present address: California Department of Public Health, Environmental HealthLaboratory Branch, 850 Marina Bay Parkway, G365, Richmond, CA 94804-6403, USA;

    School of Fisheries and Ocean Sciences, University of Alaska, Juneau, AK 99801, USA;

    School of Fisheries and Ocean Sciences, University of Alaska, Juneau, AK 99801, USA,Alaska SeaLife Center, 301 Railway Ave, Seward, AK 99664, USA;

    USDA-ARS Biosciences Research Laboratory, 1605 Albrecht Boulevard. Fargo, ND58102, USA;

    Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa. Honolulu, HI 96822, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    persistent organic pollutants; harbor seals; maternal transfer;

    机译：持久性有机污染物;斑海豹;产妇转移;

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