硝基芳烃对虹鳉鱼(Poecilia reticulata)的毒性  

The toxicity of nitrotoluenes to guppy

作　　者：张蕾[1] 徐镜波[1] 

机构地区：[1]东北师范大学环境科学与工程系,吉林长春130024

出　　处：《生态环境》2004年第1期31-33,共3页Ecology and Environmnet

基　　金：教育部科学技术研究重点项目(01063)

摘　　要：主要研究了2,6-二硝基甲苯(2,6-DNT)和4-硝基甲苯(4-NT)两种硝基芳烃对虹鳉鱼的急性毒性、亚急性毒性及联合毒性效应,旨在为渔业水质标准的制定与完善提供可靠的科学依据。研究表明,2,6-DNT的急性毒性大于4-NT,二者的96 h LC50值分别为(25.22±0.19)mg/L和(60.26±0.09)mg/L;亚急性毒性研究中,两种化合物的各种质量浓度在40天内,对试验动物的生长有不同程度的影响;应用Marking相加指数法评价二者的联合毒性,结果表明其联合毒性为协同。Acute toxicity, subacute toxicity and joint toxicity of 2,6-dinitrotoluene and 4-nitrotoluene to guppy was determined. It would give credible foundation to constitute or perfect water quality standard for fisheries. The results showed that the values of 96 h LC50 of 2,6-dinitrotoluene and 4-nitrotoluene were (25.22±0.19) mg/L and (60.26±0.09) mg/L. Then, the two nitrotoluenes affected upgrowth of guppy in 40 days differently and the joint toxicity of 2,6-dinitrotoluene and 4-nitrotoluene was synergistic effect in 96 h.

关 键 词：硝基芳烃 虹鳉鱼 联合毒性 2 6二硝基甲苯 亚急性毒性 

分 类 号：X503.225[环境科学与工程—环境工程]