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首页> 外文期刊>Environmental Science & Technology >Partitioning of Persistent Organic Pollutants between Blubber and Blood of Wild Bottlenose Dolphins: Implications for Biomonitoring and Health
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Partitioning of Persistent Organic Pollutants between Blubber and Blood of Wild Bottlenose Dolphins: Implications for Biomonitoring and Health

机译：持久性有机污染物在野生宽吻海豚的血脂和血液之间的分配：对生物监测和健康的影响

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摘要

Biomonitoring surveys of wild cetaceans commonly utilize blubber as a means to assess exposure to persistent organic pollutants (POPs), but the relationship between concentrations in blubber and those in blood, a better indicator of target organ exposure, is poorly understood. To define this relationship, matched blubber and plasma samples (n = 56) were collected from free-ranging bottlenose dolphins (Tursiops truncatus) and analyzed for 61 polychlorinated biphenyl (PCB) congeners, 5 polybrominated diphenyl ether (PBDE) congeners, and 13 organochlorine pesticides (OCPs). With the exception of PCB 209, lipid-normalized concentrations of the major POPs in blubber and plasma were positively and significantly correlated (R~2 = 0.828 to 0.976). Plasma concentrations, however, significantly increased with declining blubber lipid content, suggesting that as lipid is utilized, POPs are mobilized into blood. Compound- and homologue-specific blubber/blood partition coefficients also differed according to lipid content, suggesting POPs are selectively mobilized from blubber. Overall, these results suggest that with the regression parameters derived here, blubber may be used to estimate blood concentrations and vice versa. Additionally, the mobilization of lipid from blubber and concomitant increase in contaminants in blood suggests cetaceans with reduced blubber lipid may be at greater risk for contaminant-associated health effects.
机译：野生鲸类动物的生物监测调查通常利用油脂作为评估持久性有机污染物（POPs）暴露的手段，但是人们对油脂和血液中浓度之间的关系（目标器官暴露的更好指示）的了解却很少。为了定义这种关系，从自由放宽的宽吻海豚（Tursiops truncatus）中收集了匹配的油脂和血浆样品（n = 56），并分析了61种多氯联苯（PCB）同类物，5种多溴联苯二苯醚（PBDE）同类物和13种有机氯农药（OCP）。除PCB 209外，脂和血浆中主要POP的脂质归一化浓度呈正相关且显着相关（R〜2 = 0.828至0.976）。然而，血浆浓度随着脂肪脂含量的下降而显着增加，这表明随着脂质的利用，POPs被转移到血液中。化合物和同系物的脂族/血液分配系数也根据脂质含量而有所不同，表明POPs是从脂族中选择性迁移而来的。总体而言，这些结果表明，利用此处导出的回归参数，可以使用脂脂来估计血液浓度，反之亦然。另外，脂肪中脂类的动员以及血液中污染物的增加表明，脂类脂减少的鲸类可能面临与污染物相关的健康影响的更大风险。

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  • 来源
    《Environmental Science & Technology》 |2010年第12期|P.4789-4795|共7页
  • 作者

    JENNIFER E. YORDY; rnRANDALL S. WELLS; rnBRIAN C. BALMER; LORI H. SCHWACKE; rnTERI K. ROWLES; JOHN R. KUCKLICK;

  • 作者单位

    Hollings Marine Laboratory, National Institute of Standards and Technology, 331 Fort Johnson Road, Charleston, South Carolina 29412 Marine Biomedicine and Environmental Sciences Center, Medical University of South Carolina, Cliarleston, South Carolina 29412;

    rnChicago Zoological Society, c/o Mote Marine Laboratory, Sarasota, Florida 34236;

    rnChicago Zoological Society, c/o Mote Marine Laboratory, Sarasota, Florida 34236;

    rnCenter far Human Health Risks, National Oceanic and Atmospheric Administration, Charleston, South Carolina 29412;

    rnOffice of Protected Resources, National Marine Fisheries Service, Silver Spring, Maryland 20910;

    rnHollings Marine Laboratory, National Institute of Standards and Technology, 331 Fort Johnson Road, Charleston, South Carolina 29412;

  • 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);
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