饮水机微生物污染状况调查

目的 了解饮水机使用卫生状况，为饮水机清洗消毒提供科学依据。方法 采用统一设计的调查表格，按照国家标准GB4789．1-94和GB4789．2-94检验方法随机抽样进行菌落总数和大肠杆菌测定。结果 居民家庭、办公场所及饮食服务业三类饮水机均未进行清洗消毒，所采水样菌落总数大部分严重超标，大肠菌群检出率为20％～66．6%。结论 饮水机污染已成为不可忽视的卫生问题，所谓纯净水、矿泉水等直接饮用存在安全隐患。

Investigation of Water Fountain Bacterium Contamination

Objective To find out the sanitation status of the water fountain,offering scientific base for cleaning and sterilizing water fountain.Methods Adopt specially designed investigation form,random samples according to GB4789.1-94 and GB4789.2-94,determining the total of bacterium and coliform.Results There are three kinds of water fountains haven't been cleaned and sterilized in residence house,office,restaurant and service industry,the total bacterium from most samples exceed the standard,the determination rate of coliform range between 20% and 66.6%. Conclusion The water fountain contamination already became a sanitation issue which should not be neglected,there are hidden safety trouble in directly drinking purified water and mineral water.