| 几种消毒剂对饮水致突变活性的影响 |
| 摘要点击 1831 全文点击 1691 投稿时间：1994-05-11 |
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| 中文关键词 氯 二氧化氯 臭氧 饮水 致突变性 |
| 英文关键词 chlorine chlorine dioxide ozone mutagpnicity of drinking water |
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| 中文摘要 |
| 本研究应用Ames致突变试验对武汉东湖水分别经氯、二氧化氯和臭氧消毒处理后的致突变活性进行了检测与比较。结果表明。东湖水以及臭氧消毒处理水样未呈现致突变性,氯与二氧化氯处理的水样致突变性检测结果为阳性,这3种消毒剂处理的各水样致突变比活性强度顺序由强至弱依次为氯>二氧化氛>臭氧;同时对东湖水用高锰酸钾预处理,以降低氯化消毒饮水致突变活性的效果也进行了比较,结果发现用高锰酸钾预处理东湖水,可降低氯化消毒饮水的致突变活性,而且高锰酸钾较高投加量的处理效果要优于低投加量。 |
| 英文摘要 |
| In this study,the mutagenicity was detected and compared after treatment of the Wuhan East Lake water with chlorine,chlorine dioxide or ozone. The concentrates of untreated and ozonetreated water at all sample collection dates were nonmutagenic in the Ames test. Both chlorine and chlorine dioxide treatment of the water resulted in increases of TA98 mutagenicity. Comparative analysis of these treated waters for mutagenicity showed a consistent pattern of mutagenic potency,with decreasing activity in the order:chlorine > chlorine dioxide > ozone. The study also found that pretre.Ptment of water with potas.slum permanganate prior to chlorination was effective in reducing the level of rnutagenicity which formed durihg chlorination., |
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