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首页> 外文期刊>Fisheries and Aquatic Sciences >Quantification of the Sub-lethal Toxicity of Metals and Endocrine-disrupting Chemicals to the Marine Green Microalga Tetraselmis suecica
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Quantification of the Sub-lethal Toxicity of Metals and Endocrine-disrupting Chemicals to the Marine Green Microalga Tetraselmis suecica

机译：金属和破坏内分泌的化学物质对海洋绿色微藻Tetraselmis suecica的亚致命毒性定量

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摘要

Microalgae are sensitive indicators of environmental changes, and hence they are widely used in environmental risk assessments and for the development of discharge guidelines. Here we evaluated the toxicity of metals and endocrine-disrupting chemicals (EDCs) to the marine green microalga, Tetraselmis suecica. The toxicants investigated included the metals, Cu, Ni, and Pb; and the EDCs, bisphenol A (BPA), endosulfan (ES), and polychlorinated biphenyl (PCB). The endpoints were variations in cell counts and chlorophyll a levels. T. suecica displayed a varied pattern of sensitivity to the toxicants. Based on the 72-h median effective concentration ( ), ES (0.045 mg/L) was most toxic to T. suecica, followed by PCB (3.96 mg/L) and Pb (9.62 mg/L). Interestingly, T. suecica was relatively tolerant to Cu (43.03 mg/L). The 72-h values of Ni and BPA were approximately 16 mg/L. Our data suggest that this species may be relatively tolerant to most of the chemicals within their permissible limits in the environment.
机译：微藻是环境变化的敏感指标，因此它们被广泛用于环境风险评估和排放准则的制定中。在这里，我们评估了金属和破坏内分泌的化学物质（EDC）对海洋绿色微藻Tetraselmis suecica的毒性。调查的毒物包括金属，铜，镍和铅。 EDC，双酚A（BPA），硫丹（ES）和多氯联苯（PCB）。终点是细胞计数和叶绿素a水平的变化。 T. suecica对毒物表现出不同的敏感性模式。根据72小时的中值有效浓度（），ES（0.045 mg / L）对锥虫的毒性最高，其次是PCB（3.96 mg / L）和Pb（9.62 mg / L）。有趣的是，T。suecica对铜的耐受性相对较高（43.03 mg / L）。 Ni和BPA的72小时值约为16 mg / L。我们的数据表明，该物种可能在环境允许的范围内相对耐受大多数化学物质。

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