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为了解深圳市管网末梢水的卫生状况,深圳市疾病预防控制中心对深圳市管网末梢水的卫生指标(总大肠菌群、菌落总数、色度、浑浊度、臭和味、肉眼可见物、pH值、铁、锰、耗氧量和游离性余氯)进行检验,并对2007-2008年的检测结果进行统计分析。检测结果表明本次共检测管网末梢水水样471份,各项指标全部合格的有439份,总体合格率达93.2%,主要不合格指标有菌落总数、浑浊度、游离氯、铁和pH等。检测结果认为深圳市生活饮用水(管网末梢水)的水质状况良好,但应注意加强游离余氯含量的控制,减少管网末梢水细菌总数。
In order to understand the sanitary conditions of the peripheral water in Shenzhen Pipe Network, Shenzhen Center for Disease Control and Prevention on the health indicators (the total coliform bacteria, the total number of colonies, color, turbidity, smelly and taste, macroscopic , PH, iron, manganese, oxygen consumption and residual free chlorine) were tested, and the results of 2007-2008 were statistically analyzed. The test results showed that there were 471 water samples in all at the end of the pipeline network, 439 of which were all qualified, with an overall pass rate of 93.2%. The main unqualified indicators were total number of colonies, turbidity, free chlorine, iron and pH Wait. The test results show that the water quality of drinking water in Shenzhen (pipe network water) is in good condition, however, care should be taken to strengthen the control of free residual chlorine to reduce the total amount of water bacteria in the pipe network.