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首页> 外文期刊>Environmental Pollution >Levels of trace elements in green turtle eggs collected from Hong Kong: Evidence of risks due to selenium and nickel
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Levels of trace elements in green turtle eggs collected from Hong Kong: Evidence of risks due to selenium and nickel

机译：从香港采集的绿海龟卵中的微量元素水平：硒和镍带来的风险证据

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Concentrations of 22 trace elements were determined in green turtle (Chelonia mydas) eggs collected from Hong Kong. Concentrations of selenium, lead and nickel in these eggs were generally higher than those reported in other studies. The predicted no effect concentrations (PNEC; ng/g wet weight) of Pb (1000), Se (340 and 6000 for the worst-case and best-case scenarios, respectively) and Ni (17) in the green turtle eggs were estimated. Hazard quotients (HQs) estimate that Se (HQs: 0.2-24.5) and Ni (HQs: 4.0-26.4) may pose some risks to the turtles. Our study also found that concentrations of Ag, Se, Zn, Hg and Ph in the shell of the turtle eggs were significantly correlated with levels in the whole egg contents (yolk + albumen). Once the precise relationships of specific elements are established, egg-shell concentrations may be used as a non-lethal, non-invasive, surrogate for predicting whole egg burden of certain contaminants in marine turtles. (c) 2006 Elsevier Ltd. All rights reserved.
机译：在从香港收集的绿海龟卵中测定了22种微量元素的浓度。这些鸡蛋中硒，铅和镍的浓度通常高于其他研究报告的浓度。估算了绿turtle卵中Pb（1000），Se（最坏情况和最佳情况下分别为340和6000）和Ni（17）的预测无作用浓度（PNEC； ng / g湿重）。 。危险商（HQs）估计，Se（HQs：0.2-24.5）和Ni（HQs：4.0-26.4）可能会对海龟构成一些风险。我们的研究还发现，乌龟卵壳中的Ag，Se，Zn，Hg和Ph的浓度与全卵含量（蛋黄+蛋白）的含量显着相关。一旦建立了特定元素的精确关系，蛋壳浓度就可以用作预测海龟中某些污染物的全蛋负荷的非致命，非侵入性替代指标。 （c）2006 Elsevier Ltd.保留所有权利。

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