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首页> 外文期刊>Environmental Science & Technology >Persistent Organic Pollutants in Alaskan Murre (Uria spp.) Eggs: Geographical, Species, and Temporal Comparisons
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Persistent Organic Pollutants in Alaskan Murre (Uria spp.) Eggs: Geographical, Species, and Temporal Comparisons

机译：阿拉斯加鸡蛋（Uria spp。）鸡蛋中的持久性有机污染物：地理，种类和时间比较

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摘要

Concentrations of persistent organic pollutants (POPs) in eggs of common and thick-billed murres (Uria aalge and U. lomvia) from five Alaskan nesting colonies were dominated by 4,4'-DDE, total polychlorinated biphenyls (∑PCBs; 46 congeners comprised mainly of PCB congeners 153, 118, 138, 99, and 151), hexachlorobenzene (HCB),β-hexachlorocyclohexane (β-HCH), and chlordane compounds (2CHL). Concentrations of 4,4'-DDE, cis-nonachlor, and heptachlor epoxide were lower than those reported for some of the same colonies in the 1970s, while HCB concentrations were similar. In general, significantly higher concentrations were found in eggs from Gulf of Alaska colonies compared to those from Bering Sea colonies except for HCB (higher in the Bering Sea) and β-HCH (no significant difference between the two regions). Thick-billed murre eggs contained higher concentrations of 4,4'-DDE and ∑PCBs, whereas common murre eggs had higher HCB concentrations. Possible factors contributing to the POPs patterns found in eggs from these murre colonies are discussed.
机译：来自五个阿拉斯加筑巢地的常见和厚嘴鼠（乌拉河藻和U. lomvia）卵中的持久性有机污染物（POPs）的浓度主要由4,4'-DDE，总多氯联苯（∑PCBs； 46种同类物）组成主要包括PCB同类物153、118、138、99和151），六氯苯（HCB），β-六氯环己烷（β-HCH）和氯丹化合物（2CHL）。 4,4'-DDE，顺式-九氯和七氯环氧化物的浓度低于1970年代某些相同菌落的报告浓度，而六氯代苯的浓度相似。一般而言，除了HCB（白令海中含量较高）和β-HCH（两个地区之间无显着差异）外，阿拉斯加湾殖民地的卵中的浓度明显高于白令海殖民地的卵。粗嘴鲈鱼蛋含有较高浓度的4,4'-DDE和∑PCBs，而普通鼠鱼蛋具有较高的HCB浓度。讨论了可能导致这些murre殖民地鸡蛋中的POPs模式的因素。

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