2007-2008年呼伦贝尔市海拉尔区集中式供水水质卫生现状

目的了解呼伦贝尔市海拉尔区集中式供水系统在GB5749—2006（生活饮用水卫生标准》发布以来的水质卫生状况，为改善饮用水水质提供依据。方法按照GB／T5750—2006（（生活饮用水标准检验方法》对样品进行采集、保存、检测分析，依据GB5749—2006（生活饮用水卫生标准》检验项目及限值进行评价。结果检测水样190份，总合格率为47．89％，水源水的合格率为37．50％，出厂水和管网末梢水的合格率分别为53．33％、50．00％；影响水质的主要指标是色度、耗氧量、铁、锰等。结论海拉尔区集中式供水单位应加强水质卫生管理，改进生产工艺，提高生活饮用水的卫生质量。卫生部门要加强卫生监督监测工作，切实保障人民群众饮水卫生安全。

Water Quality of Centralized Water Supply in Hailar District of Hulunbeier City during 2007-2008

Objective ] To understand the sanitary quality of drinking water in centralized water supply in Hailar district of Hulunbeier City after the promulgation of GB 5749 - 2006 ＂ Sanitation Standards for Drinking Water ＂. Methods] The water samples were collected, preserved, detected and analyzed according to GB / T 5750 - 2006 ＂Standard Testing Methods for Drinking Water＂, the evaluation of test items and limit value were based on GB 5749 -2006 ＂ Sanitation Standards for Drinking Water ＂. Results] Of 190 tested water samples, the total qualified rate was 47.89%, the qualified rate of source water, finished water and tap water was 37.50%, 53.33%, 50.00% respectively; the major influencing indicators of water quality were chroma, oxygen consumption, iron, manganese and so on. Conclusion ] Water quality management of centralized water supply should be enhanced in Hailar District. The production processes should be modified to improve the sanitary quality of drinking water. The health department should strengthen health supervision and monitoring to guarantee the safety of drinking water.