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为了解集中供水系统的霉菌含量水平及与有关水质指标的相关关系，探讨霉菌的饮水卫生学意义，调查了供水系统的霉菌含量。结果表明，地面水源水霉菌数为１６．７～１４０ＣＦＵ／ｍＬ，水处理后的出厂水为０～０．７ＣＦＵ／ｍＬ，混凝沉淀的霉菌去除率达９９．７％。与出厂水比，管网水、高层水箱水中霉菌含量及检出率递增，均值分别为１．６ＣＦＵ／ｍＬ和２．３ＣＦＵ／ｍＬ，最高值分别为１４．３ＣＦＵ／ｍＬ和１４ＣＦＵ／ｍＬ，检出率的差异具有非常显著意义，提示配水系统存在不同程度的霉菌污染。但结果未见其与细菌总数、大肠菌群、浑浊度和游离余氯含量间存在线性相关。
In order to understand the mold content of centralized water supply system and its correlation with relevant water quality indicators, the significance of fungal drinking water hygiene was explored and the mold content of water supply system was investigated. The results showed that the number of fungi on the surface water source was 16.7-140CFU / mL, the treated water was 0-0.7CFU / mL, and the coagulation and sedimentation rate was 99.7%. Compared with the ex-factory water ratio, the content of fungi and the detection rate of water in the high-rise water tank increased gradually with the average values of 1.6 CFU / mL and 2.3 CFU / mL, respectively, and the highest values were 14.3 CFU / mL and 14 CFU / mL respectively The difference of output rate has a very significant meaning, suggesting that the water distribution system has different degree of mold contamination. However, there was no linear correlation between the results and the total number of bacteria, coliform bacteria, turbidity and free residual chlorine content.