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目的分析广州市海珠区2006—2009年管网末梢水和二次供水水质状况,探讨水质在不同年度、季节中的变化特点,为预防水污染事件的发生提供科学依据。方法对海珠区2006—2009年管网末梢水和二次供水水质监测资料进行统计分析,按照《生活饮用水卫生标准》、《生活饮用水标准检验方法》进行检验和评价。结果管网末梢水合格率87.67%,2009年合格率最低(77.11%),2006年合格率最高(97.62%)。二次供水的合格率为84.04%,年度间差异无统计学意义。结论该区生活饮用水水质卫生状况一般,应不断加强生活饮用水卫生管理,严控水污染事件的发生。
Objective To analyze the water quality of the peripheral water and secondary water supply of pipe network in Haizhu District of Guangzhou City from 2006 to 2009, discuss the changing characteristics of water quality in different years and seasons, and provide a scientific basis for preventing water pollution incidents. Methods Statistical analysis was conducted on monitoring data of water supply and secondary water quality at the pipe network from 2006 to 2009 in Haizhu District. The data were tested and evaluated according to the Standards for Drinking Water Quality and Standard Test Method for Domestic Drinking Water. As a result, the water passing rate at the end of the pipe network was 87.67%, the lowest pass rate in 2009 (77.11%) and the highest passing rate in 2006 (97.62%). The secondary water supply pass rate was 84.04%, there was no significant difference between the year. Conclusion The sanitary drinking water quality in this area is normal. Health management of drinking water should be continuously strengthened and water pollution incidents should be strictly controlled.