重金属污染土壤毒性的大型蚤法诊断  

Assessment on Ecotoxicity of Heavy Metals in Contaminated Soils by Daphnia Magna Straus ' Movement

作　　者：李永进[1] 李培军[1] 杨桂芬[1] 张海荣[1] 王丽文[2] 

机构地区：[1]中国科学院沈阳应用生态研究所,辽宁沈阳110016 [2]沈阳师范大学化学与生命科学学院,辽宁沈阳110034

出　　处：《农业环境科学学报》2003年第2期159-162,共4页Journal of Agro-Environment Science

基　　金：国家重点基础研究发展规划项目资助(G1999011808)

摘　　要：采用清洁土壤人工投加污染物的方法,应用大型蚤对4种重金属污染的草甸棕壤进行了毒性的诊断。实验确立了4种重金属在草甸棕壤中的IC50———Cd157.71mg·kg-1、Zn182.29mg·kg-1、Cu185.09mg·kg-1、Pb1223.29mg·kg-1。对复合污染的研究表明,重金属间存在明显的协同作用。Ecological toxicity of several hea vy metals was assessed with Daphnia magna Straus' movement using artificially soil fortified with the heavy metals.We e stablished general detection limits given by IC 50 of soil contaminated by single heavy metals,namely,Cd:157.71mg ·kg -1 ,Zn:182.29mg ·kg -1 ,Cu:185.09mg ·kg -1 ,Pb:1223.29mg ·kg -1 .The results from our study also indicated there was an apparent synergism among the heavy meta ls studied,i.e.the ecotoxicity of complex heavy metals pollution was stronger than that of i ndividual element in soil.

关 键 词：重金属污染 土壤 毒性 蚤 诊断 

分 类 号：X171.5[环境科学与工程—环境科学]