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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 To understand the status of mold contamination and the types of molds in different types of drinking water and explore the hygienic significance of mold contamination in drinking water. Methods The changes of fungal content in pipe network water and high level water tanks in 2 cities from 2002 to 2004 and the types of molds were investigated. Results In three years, the content of mold in drinking water was significantly higher than that in 2002 except that in 2002. There were 19 kinds of molds in the water supply system, of which 15 were toxic molds. The contents of molds and mold Of the species and toxic mold content and species significantly more than the network water. Conclusion The centralized water supply enterprises should pay attention to mold pollution prevention and control.