2007-2008年德州市二次供水水质调查 |
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引用本文: | 郑丽云,陈玉芝,刘丹欣,李国华. 2007-2008年德州市二次供水水质调查[J]. 预防医学文献信息, 2009, 0(10): 953-955 |
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作者姓名: | 郑丽云 陈玉芝 刘丹欣 李国华 |
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作者单位: | 德州市德城区疾病预防控制中心,山东德州253018 |
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摘 要: | [目的]了解德州市德城区二次供水的卫生状况。[方法]现场调查二次供水基本卫生状况,同时采集水样进行检测,并对检测结果进行分析。[结果]对65个二次供水单位260份水样检测,合格57份,合格率21.92%。其中,色度、嗅味、肉眼可见物、砷、铁、锰、氨氮、亚硝酸盐氮、硝酸盐氮、pH值合格率100.00%;菌落总数106份合格,合格率为40.77%;大肠菌群150份合格,合格率为57.69%;浑浊度221份合格,合格率为85.00%;游离余氯57份合格,合格率为21.92%。[结论]二次供水水质合格率较低,要加强预防性卫生监督,做好水质二次消毒工作。
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关 键 词: | 二次供水 水质 监督管理 |
Investigation on Water Quality of Secondary Water Supply in Dezhou City from 2007 to 2008 |
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Affiliation: | ZHENG Li-yun, CHEN Yu-zh i , L IU Dan-xin , et al. ( Decheng District Center for Disease Control and Prevention, Dezhou , 253018, Shandong , China) |
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Abstract: | [Objective]To understand the hygienic status of water from second water supplies. [Methods] On-the-spot investigation was conducted on the basic hygienic status of the second water supply, water samples were collected and tested,the results were analyzed. [Results]260 water samples collected from 65 units of second water supply were tested,57 of them were qualified, accounting for 21.92 %. The qualified rate of color scale, odor, visible materials, arsenic, iron, mangahum, ammonia nitrogen, nitrite nitrogen,nitrate nitrogen and p H value was 100. 00 %. 160 of them were qualified for total colony,accounting for 40. 77 %. 150 of them were qualified for coil group,accounting for 57.69 %. 221 of them were qualified for opacity, accounting for 85 %. 57 of them were qualified for free chlorine residue, accounting for 21.92 %. [Conclusion]The qualified rate.of water from second water supply was low, preventive health supervision must be strengthened, disinfection for 2 times must be carried out. |
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Keywords: | Second water supply Water quality Management of supervision |
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