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目的分析广州市分质供水水质的卫生状况,探讨分质供水水质卫生安全及卫生评价标准和措施。方法对2005-2007年广州市分质供水的水源水、处理水、末梢水的监测资料进行整理分析和统计,参照卫生部《生活饮用水卫生规范》2001、GB5749-2006《生活饮用水卫生标准》和《饮用净水水质标准》(CJ94-2005)进行评价分析。结果共检测水源水260份,各项指标合格率为79.23%～100.00%;检测处理水260份,各项指标合格率为93.46%～100.00%;检测末梢水260份,各项指标合格率为92.31%～100.00%。末梢水主要超标项目为色度、浑浊度、pH、耗氧量、锰、铅、细菌总数、总大肠菌群、粪大肠菌群。结论需加强广州市分质供水的卫生管理,另外,迫切需要制定相应的分质供水卫生学评价标准和规范。
Objective To analyze the hygienic status of quality water supply in Guangzhou and to discuss the hygienic, safety and health evaluation standards and measures of quality of water supply. Methods The monitoring data of water supply, treated water and peripheral water from 2005 to 2007 in Guangzhou were analyzed and statistically analyzed. According to Health Standards for Drinking Water of the Ministry of Health, 2001, GB5749-2006, “Drinking Water Quality Standard ”And“ drinking water quality standards ”(CJ94-2005) for evaluation analysis. Results A total of 260 water sources were tested. The qualified rate of each index was 79.23% ~ 100.00%. The detection and treatment water was 260, the pass rate of each index was 93.46% ~ 100.00% 92.31% ~ 100.00%. The main items of peripheral water exceeded the standard chroma, turbidity, pH, oxygen consumption, manganese, lead, total bacteria, total coliforms, fecal coliform. Conclusion It is necessary to strengthen the health management of Guangzhou sub-quality water supply. In addition, it is urgent to formulate the corresponding evaluation standards and norms for quality water supply and sanitation.