| 钒对日本青鳉的急性毒性及与镍·镉的毒性比较 |
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| 引用本文： | 易浪波,梅丹,刘小英,马陶武,何齐庄,彭清静.钒对日本青鳉的急性毒性及与镍·镉的毒性比较[J].安徽农业科学,2010,38(5):2399-2400,2440. |
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| 作者姓名： | 易浪波 梅丹 刘小英 马陶武 何齐庄 彭清静 |
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| 作者单位： | 吉首大学生物资源与环境科学学院,湖南吉首,416000 |
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| 基金项目： | 湖南省教育厅资助项目(09c790);;吉首大学资助项目(JSU-CX-2008-22) |
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| 摘 要： | 目的]研究钒对水生生物毒性强弱,为制定含钒废水排放标准提供科学依据。方法]以日本青鳉为受试生物,采用半静止生物测试法,比较研究了V（Ⅴ）和Ni2＋、Cd2＋对日本青鳉的急性毒性。结果]V（Ⅴ）、Ni2＋和Cd2＋对日本青鳉的96 hLC50分别为2.73、6.02和0.22 mg/L;3种重金属毒性强度依次为Cd2＋〉V（Ⅴ）〉Ni2＋。结论]Cd对日本青鳉是高毒物质,V和Ni是中毒物质,可见V与Cd和Ni一样应属于第1类污染物,建议参照Cd和Ni排放标准,将废水中V的排放浓度定为0.1～1.0 mg/L。
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| 关 键 词： | 日本青鳉 急性毒性 V（Ⅴ） Ni2＋ Cd2＋ |
Comparison of Acute Toxicity Made by V(Ⅴ),Ni~(2+) and Cd~(2+)on Janpanese Medaka |
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| YI Lang-bo et al.Comparison of Acute Toxicity Made by V(Ⅴ),Ni~(2+) and Cd~(2+)on Janpanese Medaka[J].Journal of Anhui Agricultural Sciences,2010,38(5):2399-2400,2440. |
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| Authors: | YI Lang-bo |
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| Institution: | College of Biology and Environmental Sciences;Jishou University;Jishou;Hunan 416000 |
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| Abstract: | Objective] The aim was to study toxicity of V on aquatic species and provide scientific basis to setting standards for discharge of vanadium-containing wastewater.Method] Japanese medaka was selected as test species to investigate the acute toxicity of V(Ⅴ),Ni~(2+) and Cd~(2+) on the fish model by using the semi-static bioassay method.Result]The 96 h LC_(50) of V(Ⅴ),Ni~(2+)and Cd~(2+) on Japanese medaka were 2.73,6.02 and 0.22 mg/L respectively.The order of toxicity for three metals was Cd~(2+)> V(Ⅴ)> Ni~(2+).Conclusion] Cd was highly toxic to Japanese medaka,V and Ni were moderate toxic.V belonged to the first category of pollutants,therefore,recommended discharge limit for vanadium-containing wastewater was 0.1-1.0 mg/L. |
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| Keywords: | Ni~(2+) Cd~(2+) Janpanese medaka Acute toxicity Ni~(2+) Cd~(2+) |
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