摘要
目的了解温岭市直饮水的卫生状况,提出直饮水存在的二次污染,为提高温岭市直饮水卫生质量提供科学依据。方法在温岭市范围随机抽样30份,分别对净化前后水质中的25项指标进行检测分析。结果净化后的水质中7项指标含量降低;14项指标含量相差不大处于合格范围或低于检出限;锌净化后的结果明显高于净化前;亚硝酸盐含量和菌落总数均有部分净化后升高。结论温岭市直饮水在一定程度上得到了净化,但同时也存在较为明显的锌污染,且在长期使用过程中会出现亚硝酸盐及细菌的二次污染现象。随着直饮水的普及推广,希望相关部门能够规范直饮水水质卫生标准,加强直饮水检测卫生管理工作,保障直饮水的饮用安全性。
Objective To know about the sanitary status of direct drinking water in Wenling, show the existence of secondary pollution, so as to provide scientific basis for improving the sanitary quality of drinking water. Methods Twenty - five index, including microbiology items, sensory traits, general chemical indicators and toxicological index, were tested and analyzed before and after purification in 30 random water samples from Wenling. Results The contents of 7 kinds of index decreased in the purified water, while those of 14 kinds of index were within a certain range of fluctuation or smaller than the minimum detection limit. Zinc content was significantly higher than that before purification; Part of total nitrite content and colony increased after purification. Conclusion The direct drinking water is purified to a certain extent, but zinc pollution is obvious after purification. In addition, secondary pollution of nitrite and bacteria may appear in the long - term use. With the popularization of direct drinking water, it is suggested that the relevant departments should regulate the direct drinking water hygienic standard, strengthen detection and health management of direct drinking water to guarantee the safety of drinking water.
出处
《中国卫生检验杂志》
北大核心
2013年第12期2679-2681,共3页
Chinese Journal of Health Laboratory Technology
基金
温岭科技局资助项目(20101882)
关键词
直饮水
安全性
二次污染
Direct drinking water
Security
Secondary pollution
