T. Mau, L. V. Trang, N. T. N. Trinh, Tran Ngoc Son, Vo Van Minh
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引用次数: 1
摘要
目前，重金属污染是包括越南在内的世界各国面临的紧迫问题。分析方法对于识别、评估和预测有毒成分的环境风险非常重要，其中生态毒理学被认为是最佳工具。我们对微藻进行了研究，目的是为利用浮游动物作为水污染风险的早期预警提供生物学基础。结果表明，micrura分离自越南中部岘港市29/3 Park Lake。重铬酸钾对微夜蛾的急性毒性试验显示，12、24、48小时的lc50分别为0.26、0.15、0.08 mg。分别为l-1 K2Cr2O7。ec50为0.015 mg。鸡蛋参数为l-1 K2Cr2O7, 0.009 mg。l-1 k2cr2o7为新生儿参数。急性和慢性毒性试验结果表明，微孔菌对毒力的敏感性高于大孔菌、小孔菌和小孔菌。
Effects of potassium dichromate on the survival and reproduction of Moina micrura Kurz. 1875 (Cladocera: Moinidae)
Today, heavy metal pollution is an urgent problem in the world including Vietnam. An analytical approach is very important to identify, assess and forecast environmental risks from toxic components, in which ecotoxicology is considered to be the optimal tool. We conducted a study on M. micrura in order to contribute the creation of a biological basis for the use of zooplankton as an early warning of the risk of water pollution. The results showed that M. micrura was isolated from 29/3 Park Lake, Da Nang City, central Vietnam. The acute toxicity test of potassium dichromate on M. micrura showed LC 50 at 12, 24 and 48 hr were 0.26, 0.15 and 0.08 mg.l-1 K2Cr2O7, respectively. EC 50 was 0.015 mg.l-1 K2Cr2O7 for egg parameter and 0.009 mg.l-1 K2Cr2O7for neonate parameter. The results of acute and chronic toxicity tests showed that M. micrura was more sensitive than D. magna, D. pulex and C. cornuta.
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