作　　者： ; ; ; ; ; ;

机构地区： 中国水产科学研究院珠江水产研究所

出　　处： 《中国环境科学》 2011年第4期642-646,共5页

摘　　要： 研究了三甲基氯化锡(TMT)对蛋白核小球藻、大型溞和斑马鱼的急性毒性影响.结果表明,TMT在实验浓度下,对蛋白核小球藻的生长有抑制作用,浓度越高抑制作用越明显.较高浓度组(5.31,20mg/L)可致死部分蛋白核小球藻细胞,TMT对蛋白核小球藻的96h-EC50为0.46mg/L,属于极高毒物质;TMT对大型溞的48h-LC50为0.087mg/L,也属于极高毒性;TMT对斑马鱼的96h-LC50为2.45mg/L,属于高毒性.TMT对这3种水生生物的抑制率/致死率(EC50/LC50)随时间呈规律性变化.TMT的神经毒性和亲脂特性可能是其对水生生物较高毒性的主要原因. A study was carried out on the acute toxicity effects of Trimethyltin chloride（TMT） on Chlorela pyrenoidosa,Daphnia magna and Danio rerio.The results suggested that the growth of Chlorela pyrenoidosa was inhibited in the TMT of experimental content,the inhibiting effect increased significantly with the concentration increasing.The part of Chlorela pyrenoidosa cells even would be lethal in the higher concentration group（5.31,20mg/L）.The toxic effects of TMT had the highest toxicity to Chlorela pyrenoidosa and Daphnia magna,and the 96h-EC50 and 48h-LC50 was 0.46mg/L and 0.087mg/L,respectively.while was high-toxic to Danio rerio,the 96h-LC50 concentration was 2.45mg/L.EC50/LC50 changed regularly with the test time.The two main reasons leading to the potential threat to the aquatic organisms could be the neurotoxicity and lipophilic property of TMT.

关 键 词： 毒性 蛋白核小球藻 大型溞 斑马鱼

领　　域： [环境科学与工程]