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目的对潮州市2010—2012年生活饮用水水质状况进行监测,为提高生活饮用水水质及卫生防护提供依据。方法按《生活饮用水标准检验方法》对潮州市的生活饮用水进行检测,据《生活饮用水卫生标准》进行评价。结果 2010—2012年共检测水样1 024份,合格率69.7%。集中式供水合格率最高(94.8%),其次为二次供水(94.3%),分散式供水最低(30.4%);分散式供水超标项目呈多样化,合格率最低的是浑浊度56.5%和pH值64.8%,其他依次为细菌总数67.0%、总大肠菌群76.1%、铁83.0%、锰84.2%、氨氮86.8%;家用过滤水细菌总数合格率81.5%;地下水合格率9.5%,山泉水13.1%,地表水11.1%;不同地区分散式供水合格率普遍偏低,其中饶平县最低10.0%,其次为潮安县23.4%、湘桥区37.5%、枫溪区71.0%。结论潮州市集中式供水和二次供水水质基本符合生活饮用水卫生要求,分散式供水除地质因素外,污染的来源也呈多样化趋势,应加强分散式供水的卫生监管。
Objective To monitor the status of drinking water quality in Chaozhou City from 2010 to 2012 and provide basis for improving the quality of drinking water and health protection. Methods According to “Standard Test Method for Domestic Drinking Water”, the drinking water in Chaozhou City was tested and evaluated according to “Sanitary Standard for Domestic Drinking Water”. Results A total of 1 024 water samples were collected from 2010 to 2012 with a pass rate of 69.7%. The highest rate of centralized water supply was 94.8%, followed by secondary water supply (94.3%) and the lowest distributed water supply (30.4%). The decentralized water supply exceeded the standard with 56.5% turbidity and pH Value of 64.8%, followed by the total number of bacteria 67.0%, total coliform 76.1%, iron 83.0%, manganese 84.2%, ammonia nitrogen 86.8%; domestic filtered water bacteria qualified rate of 81.5%; groundwater pass rate of 9.5% %, Surface water 11.1%; decentralized water supply in different regions generally low pass rate, of which Raoping lowest 10.0%, followed by Chaoan 23.4%, Xiangqiao 37.5%, Fengxi 71.0%. Conclusion The centralized water supply and secondary water supply in Chaozhou basically meet the requirements of drinking water hygiene. In addition to the geological factors, the sources of pollution also diversify. Therefore, decentralized water supply should be supervised.