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首页> 外文期刊>Environmental Science & Technology >Predatory Bird Species Show Different Patterns of Hydroxylated Polychlorinated Biphenyls (HO-PCBs) and Polychlorinated Biphenyls (PCBs)
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Predatory Bird Species Show Different Patterns of Hydroxylated Polychlorinated Biphenyls (HO-PCBs) and Polychlorinated Biphenyls (PCBs)

机译：掠食性鸟类物种表现出不同的羟化多氯联苯（HO-PCBs）和多氯联苯（PCBs）模式

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摘要

Hydroxylated metabolites of polychlorinated biphenyls (HO-PCBs) have previously been associated with endocrine disrupting effects. Since metabolic capacity may differ among species, we investigated the levels and profiles of HO-PCBs and PCBs in livers of four predatory bird species from Belgium. Maximum concentrations for sum HO-PCBs were found in the common buzzard (Buteo buteo) up to 13 700 pg/g wet weight (ww). The most prominent HO-PCB congener in all bird species was 4-H0-CB187 (up to 6420 pg/g ww in buzzard liver), followed by 4-H0-CB146 in the buzzard (up to 1820 pg/g ww), sparrowhawk (Accipiter nisus), and grey heron (Ardea cinerea), and by 3'-H0-CB138 in long eared owl (Asio otus) and in one grey heron (up to 985 pg/g ww and 3450 pg/g ww, respectively). The mean profile of the grey heron differed from the other species with 3'-HO-CB138 and 4-HO-CB163 contributing more to the sum HO-PCBs. This indicates that aquatic and terrestrial predatory bird species may show differences in their HO-PCBs profiles. Variation in the diet and species-specific accumulation and metabolism of PCBs are probably the most important causes for these differences. Correlations between HO-PCBs and their parent PCBs were only found significant for buzzards.
机译：多氯联苯（HO-PCBs）的羟基化代谢产物以前与内分泌干扰作用有关。由于不同物种之间的代谢能力可能不同，因此我们研究了比利时四种掠食性鸟类肝脏中HO-PCBs和PCBs的水平和概况。在普通秃鹰（Buteo buteo）中发现总HO-PCBs的最大浓度高达13 700 pg / g湿重（ww）。在所有鸟类中，最显着的HO-PCB同系物是4-H0-CB187（在肉食肝中达6420 pg / g ww），其次是在肉食鸟中的4-H0-CB146（高达1820 pg / g ww），雀鹰（Accipiter nisus）和灰鹭（Ardea cinerea），以及3'-H0-CB138在长耳猫头鹰（Asio otus）和一只灰鹭（高达985 pg / g重量和3450 pg / g重量，分别）。苍鹭的平均轮廓不同于其他物种，其中3'-HO-CB138和4-HO-CB163对总HO-PCB的贡献更大。这表明水生和陆生掠食性鸟类的HO-PCBs谱可能存在差异。饮食的变化以及特定种类的多氯联苯的积累和代谢可能是造成这些差异的最重要原因。只发现HO-PCB与它们的父PCB之间的相关性对肉食很重要。

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