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器官组织中有机态/无机态重金属比值作为评价海水污染程度的标志物研究
Authors
冯丽剑
卓慧钦
黄河清
黄琳
Publication date
15 May 2009
Publisher
Abstract
以蓝斑背肛海兔(Notarchus Leachii cirrosus Stimpson,NLCS)为实验材料,研究NLCS经人工海水净化前后,NLCS各器官组织中有机态(结合态)/无机态(游离态)重金属含量相对比值及变化趋势,提出组织细胞中的有机态/无机态重金属比值参数,适合于监测流动海水中各类重金属污染程度及危害性的看法.实验结果发现,NLCS受铜盐污染后,海兔器官组织内的有机态/无机态重金属的比值应低于0.85;受Cd、Pb和Ag盐分别污染后,NLCS各器官组织中的有机态/无机态的Cd、Pb和Ag相对含量比值,分别为1.43~1.55、1.47~2.05和1.78~1.89;金属Mn的安全比值很高,但它的阈值却低于10.21.NLCS各器官组织中有机态/无机态重金属相对比值可作为连续监测流动海水中重金属污染程度及危害性的新颖标志参数,它比选用直接分析动植物及微生物机体中总金属含量作为评价环境污染程度的经典分析法,更为科学且合理,并具有潜在的应用前景
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Last time updated on 16/06/2016