城市污水对斑马鱼胚胎的毒性

Zaiping Liu, Songlin Zhang
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摘要

[目的]探讨城市污水对斑马鱼胚胎及其孵化成的幼虫的影响。[方法]采用静态法,在实验室对照条件下,观察城市污水处理和未经处理对斑马鱼胚胎和幼虫的毒性影响。并对其可能的毒性机制进行了讨论。[结果]兰州市安宁区M污水处理厂污水、M污水处理厂接触池出水、M污水处理厂接触池直接排入黄河的污水对胚胎均有毒性,72h EC50在21.384% ~ 108.492%之间。同样,水样对经过处理的胚胎孵化的幼虫的毒性也非常明显。[结论]上述污水会降低斑马鱼胚胎的孵化率,增加对胚胎的毒性和对幼鱼的畸形。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The toxicity of urban sewage on embryos of zebrafish
[Objective]To determine influence of urban sewage to zebrafish embryos and their larvas hatched into. [Method]By using of static method, toxic effects of urban sewage treated or untreated on zebrafish embryos and larvas were observed under control conditions in laboratory. Furthermore, their possible toxic mechanisms were also discussed. [Result]The sewage of M sewage treatment plant in AnNing District, Lanzhou, the effluent of contact tank of M sewage treatment plant, the effluent directly poured into the Yellow River from contact pool of M sewage treatment plant, all of them had toxicity to the embryos, and EC50 of 72h was between 21.384% and 108.492%. Similarly, toxicity of water samples to larvas hatched from embryos treated was very obvious, too. [Conclusion]Those sewage mentioned above could reduce hatchability of zebrafish embryos, and increase toxicity to embryos and deformity to their larvas.
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