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首页> 外文期刊>Ecotoxicology >Polychlorinated biphenyls, dioxins, furans, and organochlorine pesticides in spotted sandpiper eggs from the upper Hudson River basin, New York.
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Polychlorinated biphenyls, dioxins, furans, and organochlorine pesticides in spotted sandpiper eggs from the upper Hudson River basin, New York.

机译：纽约哈德逊河流域上游斑sand卵中的多氯联苯，二恶英，呋喃和有机氯农药。

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摘要

In 2004, spotted sandpipers (Actitis macularia) were studied on the Hudson River near Fort Edward south to New Baltimore, NY and on two river drainages that flow into the Hudson River. Concentrations of 28 organochlorine pesticides, 160 polychlorinated biphenyl (PCB) congeners, and 17 dioxin and furan (PCDD-F) congeners were quantified in eggs collected on and off the Hudson River. The pattern of organochlorine pesticides and PCDD-F congeners did not differ significantly between eggs collected on and off the Hudson River. In contrast, the pattern of PCB congeners differed significantly between the Hudson River and other rivers. Total PCBs were significantly greater in eggs from the Hudson River (geometric mean = 9.1 microg PCBs/g wet weight) than from the other two rivers (0.6 and 0.6 microg PCBs/g wet weight). Seven of 35 (20%) eggs exceeded 20 microg PCBs/g wet weight, the estimated threshold for reduced hatching in tree swallows (Tachycineta bicolor) and some raptor species; the maximum concentration was 72.3 microg PCBs/g wet weight. Models that predicted nest survival and egg success (the proportion of eggs hatching in a clutch if at least one egg hatched) as functions of contaminant levels were poorly distinguished from models that presumed no such associations. While small sample size could have contributed to the inability to distinguish among contaminant and no toxicant models, we cannot rule out the possibility that contaminant concentrations on the Hudson River were not sufficiently high to demonstrate a relationship between contaminant concentrations and reproductive success.
机译：2004年，在纽约州新巴尔的摩市以南的爱德华堡附近的哈德逊河和流入哈德逊河的两条河道上研究了斑sand（Actitis macularia）。在哈德逊河上下采集的卵中，对28种有机氯农药，160种多氯联苯（PCB）同源物和17种二恶英和呋喃（PCDD-F）同源物的浓度进行了定量。在哈德逊河上下采集的卵之间，有机氯农药和PCDD-F同源物的模式没有显着差异。相比之下，哈德逊河和其他河流之间的多氯联苯同类物模式差异很大。哈德逊河（几何平均值= 9.1微克多氯联苯/克湿重）中鸡蛋的总多氯联苯含量显着高于其他两条河流（0.6和0.6微克多氯联苯/克湿重）。 35枚鸡蛋中有7枚（20％）的蛋重超过20微克PCBs / g湿重，这是估计减少树燕子（Tachycineta bicolor）和某些猛禽物种孵化率的阈值;最大浓度为72.3 microg PCBs / g湿重。预测巢中存活率和卵成功率（如果至少孵化一个卵，则在卵中孵化的比例）与污染物水平的函数的模型与假定没有这种关联的模型很难区分开。虽然小样本量可能导致无法区分污染物模型和无毒物模型，但我们不能排除哈德逊河上的污染物浓度不够高，无法证明污染物浓度与繁殖成功之间的关系的可能性。

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