杭州景点泉水霉菌污染现状及其成因分析

The Fungi Pollution and the Cause of Spring Water in Hangzhou Scenic Spots

[目的 ]了解杭州景点天然泉水霉菌污染状况 ,探讨其卫生学意义。 [方法 ]在 6个景点采集泉水水样 ,用GB4789 1994和GB 5 75 0 1985检测霉菌及水质。[结果 ]天然泉水普遍受霉菌污染 ,霉菌数为 0～ 5 80cfu/ml;平水期、枯水期霉菌数大于丰水期。用漂精片消毒处理有很好的效果 ,霉菌杀灭率达 10 0 % ;霉菌菌相分析显示 ,污染泉水的霉菌种类较多 ,且检出产毒菌株 ;水中细菌总数、大肠菌群、浑浊度、耗氧量及硝酸盐氮含量 ,与霉菌含量的相关系数似无规律性。[结论 ]泉水的霉菌污染主要来自土壤和空气 ,其次为取水器具和取用者的不良卫生习惯。

Objective To investigate the fungi pollution of natural spring water and to explore its hygiene significance. Methods Spring water samples were collected from 6 scenic spots. Fungi and water quality were examined by GB 4789-1994 and GB 5750-1985. Results The spring water was polluted by fungi universally and the range of fungi count is 0-580 cfu/ml. Fungi count of the water in dry season and temperate season was higher than that in wet season. 100% Fungi were killed by using calcium hypochlorite tablet. There were many kinds of fungi in spring water including poisonous fungi. It seems that no significant correlation between fungi count and water pollution indicators (total number of bacteria, coliform group, turbidity and oxygen consumption and nitrate nitrogen).Conclusions Fungi pollution of the spring water is mainly from soil and air, as well as water-taking tools and people's bad health habit.