Cu2+、Zn2+、Al3+对泥鳅的单一和联合毒性研究
Science & Technology Review（2017）
Abstract
本文研究了Cu2+、Zn2+、Al+3种离子对泥鳅的单一和联合毒性.结果表明:Zn2+和Al3+对泥鳅24 h的半致死浓度(LC50)分别为3.24和1.50 mg/L;Cu2+、Zn2+和Al3+对泥鳅48 h的LC50分别为1.05、3.02和1.43 mg/L,对泥鳅72 h的LC50则为0.67、3.02和1.39 mg/L,对泥鳅96 h的LC50分别为0.56、2.87和1.35 rng/L;而Cu2+、Zn2+、Al3+3种离子对泥鳅96 h的安全浓度分别为0.0056、0.029和0.014 mg/L.采用Marking相加指数评价法进一步分析结果显示,Cu2+-Zn2+-Al3+混合溶液对泥鳅表现出拮抗作用(48和72 h)和协同作用(96 h).
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Key words
Cu2+,Al3+,Zn2+,loach,single toxicity,joint toxicity
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