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我国典型污染物水质基准研究

, PP. 665-672

Keywords: 水生生物,水质基准,典型污染物,生物区系,物种敏感度分布

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Abstract:

?本研究以我国淡水生态系统为保护对象,根据国内外最新的文献和数据库资料收集和筛选了锌、镉、铬(Ⅵ)、苯和硝基苯5种典型污染物的水生生物毒性数据,获得了我国区域保护水生生物水质基准值,并与国外相关基准和我国的相关标准进行了对比,同时总结了我国水质基准研究的关键要点.结果表明:5种污染物的物种敏感度分布存在显著性差异,物种对3种重金属的敏感性大于对2种有机污染物的敏感性.我国锌、镉、铬(Ⅵ)、苯和硝基苯的淡水水生生物急性基准分别为:48.43,0.4218,45.79,2651和1426μgL-1;慢性基准分别为:20.01,0.2428,14.22,530.2和286.2μgL-1.几种典型污染物的基准案例综合对比研究对中国水质基准的研究有重要的示范意义.

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