江苏某地长江水源饮用水中有机物致突变性比较
发布时间：2018-12-21 11:33
【摘要】：目的了解江苏省某市长江水源水及长距离输送和相关自来水厂净水工艺处理对水中有机物致突变性的影响。方法采用大孔树脂XAD-2提取该市某自来水厂的进厂水、出厂水和管网水中非挥发性有机物,并通过Ames试验检测其致突变性,当回复突变率(mutation ratio,MR)≥2时,认为Ames试验阳性。结果各水样对TA98(-S9)的MR高于TA98(+S9)(P=0.005);自来水厂常规净水工艺处理使得水中有机物的MR值(TA98,-S9)升高(P=0.007);长距离管道输送可降低水样MR值(P=0.038);出厂水MR值(+S9)总体低于水源水(P=0.002),但出厂水致突变性试验阳性结果(-S9)检出频率高于水源水;管网自来水致突变性(TA98,+S9)低于长江水源水(P=0.008)。结论江苏省某市长江水源水及其自来水厂各净水处理单元的出水水样均检测出了致突变性,主要存在移码型直接致突变物。
[Abstract]:Objective to investigate the effect of source water and long distance transportation of Yangtze River water and water purification process on mutagenicity of organic matter in water in a city of Jiangsu Province. Methods macroporous resin XAD-2 was used to extract non-volatile organic compounds (NVOCs) from a waterworks in the city. The mutagenicity of them was tested by Ames test when the mutation ratio,MR was 鈮，
本文编号：2388857
[Abstract]:Objective to investigate the effect of source water and long distance transportation of Yangtze River water and water purification process on mutagenicity of organic matter in water in a city of Jiangsu Province. Methods macroporous resin XAD-2 was used to extract non-volatile organic compounds (NVOCs) from a waterworks in the city. The mutagenicity of them was tested by Ames test when the mutation ratio,MR was 鈮，
本文编号：2388857
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