钟旭;宋宁宁;王学东;马义兵;

• 1:首都师范大学资源环境与旅游学院
• 2:中国农业科学院农业资源与农业区划研究所

摘要(Abstract)：

重金属的复合污染在环境污染中普遍存在,所以复合污染的联合毒性研究对于准确评价重金属污染有着重要的意义。本论文以大麦根伸长为研究对象,探索了铜(Cu)和镍(Ni)对大麦根伸长的联合毒性。基于Cu-Ni混合物的剂量-效应曲线,运用扩展的浓度加和(CA)与独立作用(RA)两个模型对不同浓度组合的Cu-Ni混合物的交互作用及联合毒性进行预测。结果表明,扩展的CA和RA模型均能较好地预测Cu-Ni混合物对大麦根伸长的联合毒性,低剂量的Ni能缓解Cu对大麦根伸长的毒性作用,但是低剂量的Cu对Ni的生物毒性没有显著影响。研究阐明了Cu、Ni复合作用对大麦根伸长联合毒性的效应机理。

关键词(KeyWords)： 联合毒性;铜;镍;浓度加和模型;独立作用模型

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(40971262);; 公益性行业(农业)科研专项项目(200903015)

作者(Author): 钟旭;宋宁宁;王学东;马义兵;

Email:

DOI:

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