饮用水中霉菌污染状况调查及分析

Investigation of Mould Pollution in Different Drinking Water

目的 了解不同类型饮水中霉菌污染状况和霉菌种类，探讨霉菌污染的饮水卫生学意义。方法 调查2城市2002～2004年管网水与高层水箱水中霉菌含量的变化以及霉菌的种类。结果 3年中，饮用水中霉菌含量除2004年明显高于2002年以外，其他差异均无显著性；供水系统中霉菌种类共19种，其中有毒霉菌为15种；高层水箱水中霉菌含量和霉菌的种类以及有毒霉菌的含量和种类明显多于管网水。结论 集中式供水企业应重视霉菌污染防治。

Objective In order to understand mould pollution in different drinking water and probe into its hygienic significance. Methods The change of mould and mould content in the pipe network water and tank water in two cities were investigated during the period from 2002～ 2004. Results There was no significant difference on mould content in the period except 2004. 19 moulds were found in the water - supply system. Of them, t5 moulds were harmful. Moulds and mould content in tank water were obviously higher than that in pipe network water. Conclusion Water supply plants should pay attention to mould control.