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目的了解厦门市集美区生活饮用水的水质卫生状况,为水质监督管理及改善提供科学依据。方法按不同时期的监测方案要求,对集美区2008—2015年管网末梢水和二次供水水样的水质监测结果进行分析。结果2008—2015年共采集管网末梢水621份、二次供水309份,合计930份。水质总合格率66.2%,合格率2008年最高(78.1%),2009年最低(55.0%);管网末梢水合格率(72.9%)较二次供水(52.8%)高,主要是感官性状和一般化学指标及消毒剂指标合格率高于二次供水。检测项目中游离余氯的合格率最低(76.1%),其次是浑浊度(90.4%)、铁(93.4%)、菌落总数(95.8%)和色度(98.8%)等项目。结论集美区生活饮用水总体水平有待提高。
Objective To understand the sanitary status of drinking water in Jimei District of Xiamen City and to provide a scientific basis for water quality supervision and management. Methods According to the requirements of monitoring program in different periods, the monitoring results of the water quality of peripheral and secondary water supply pipelines in Jimei District during 2008-2015 were analyzed. Results A total of 621 peripheral water pipelines were collected from 2008 to 2015, and 309 secondary water supplies were collected, totaling 930. The overall qualified rate of water quality was 66.2%, the highest passing rate was in 2008 (78.1%) and the lowest was in 2009 (55.0%). The qualified rate of water at the end of pipe network (72.9%) was higher than that of secondary water supply (52.8%), General chemical indicators and disinfectant indicators pass rate higher than the secondary water supply. The qualified rate of free residual chlorine in the test items was the lowest (76.1%), followed by turbidity (90.4%), iron (93.4%), total number of colonies (95.8%) and color (98.8%). Conclusion The overall level of domestic drinking water in Jimei District needs to be improved.