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首页> 外文期刊>Scientific reports. >Mutagenicity of drinking water sampled from the Yangtze River and Hanshui River (Wuhan section) and correlations with water quality parameters
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Mutagenicity of drinking water sampled from the Yangtze River and Hanshui River (Wuhan section) and correlations with water quality parameters

机译：从长江和汉汉河（武汉段）采样的饮用水崩溃，与水质参数相关

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A total of 54 water samples were collected during three different hydrologic periods (level period, wet period, and dry period) from Plant A and Plant B (a source for Yangtze River and Hanshui River water, respectively), and several water parameters, such as chemical oxygen demand (COD), turbidity, and total organic carbon (TOC), were simultaneously analyzed. The mutagenicity of the water samples was evaluated using the Ames test with Salmonella typhimurium strains TA98 and TA100. According to the results, the organic compounds in the water were largely frame-shift mutagens, as positive results were found for most of the tests using TA98. All of the finished water samples exhibited stronger mutagenicity than the relative raw and distribution water samples, with water samples collected from Plant B presenting stronger mutagenic strength than those from Plant A. The finished water samples from Plant A displayed a seasonal-dependent variation. Water parameters including COD ( r = 0.599, P = 0.009), TOC ( r = 0.681, P = 0.02), UV254 ( r = 0.711, P = 0.001), and total nitrogen ( r = 0.570, P = 0.014) exhibited good correlations with mutagenicity (TA98), at 2.0?L/plate, which bolsters the argument of the importance of using mutagenicity as a new parameter to assess the quality of drinking water.
机译：在来自植物A和植物B（分别为长江和汉宇河水的源头）和几个水参数的三种不同的水文期（水平期，潮湿的时期和干燥期）中收集了54个水样中的54个水样。随着化学需氧量（COD），同时分析浊度和总有机碳（TOC）。使用AMES试验用沙门氏菌培尿菌株TA98和TA100进行评估水样的致突变性。根据结果​​，水中的有机化合物很大程度上是框架偏移诱变，因为使用TA98的大部分测试发现阳性结果。所有成品样品都表现出比相对原料和分布水样的更强的致突变性，水样从植物B中收集的水样，呈现出比植物A的更强的致突变强度。从植物A的成品水样呈现出季节性依赖性变化。包括鳕鱼（r = 0.599，p = 0.009），toc（r = 0.681，p = 0.02），UV 254 （r = 0.711，p = 0.001）和总氮气（r = 0.570，p = 0.014）与2.0℃，2.0？L /板的致突变性（TA98）表现出良好的相关性，这使得使用致突变性作为评估饮用水质量的新参数的重要性。

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