摘要
目的了解深圳市宝安区龙华地区市政水厂与自建水厂管网末梢水的水质情况。方法根据《生活饮用水标准检验方法水样的采集与保存》(2006)对末梢水进行采样、保存、检测,结合龙华地区的水质情况,确定监测项目为游离性余氯、色度、浑浊度、臭和味、肉眼可见物、pH值、细菌总数、总大肠菌群等指标。结果2007—2008年龙华地区1家市政水厂与1家自建水厂末梢水共监测192份水样,合格率87.50%。其中市政水厂96份,合格率100.00%;自建水厂96份,合格率75.00%;两者之间比较,差异有统计学意义(χ2=37.42,P=0.00)。自建水厂管网末梢浑浊度指标合格率75.00%;其余各指标合格率为100.00%;自建水厂管网末梢水各季度的合格率第1季度=第4季度>第2季度>第3季度,各季度间比较,差异有统计学意义(χ2=39.11,P=0.00)。结论市政水厂末梢水合格率比自建水厂高,相关部门应加强对龙华地区自建水厂的监督检测,同时加快龙华地区自建水厂的市政化过程。
[ Objective ] To understand the quality of peripheral water from pipe networks of municipal waterworks and private waterworks. [ Methods ] The peripheral water sampling, preservation, testing was based on ＂The standard test methods of drinking water sample collection and preservation （2006） ＂ . Considering the water quality of Longhua area, free residual chlorine, color, turbidity, smell and taste, visible substance, pH, total bacteria, total coliforms were taken as monitoring items. [ Results] A total of 192 peripheral water samples from a municipal waterworks and a private waterworks in Longhua Area y during 2007--2008 were monitored, and the qualified rate was 87.50%. Among which 96 samples were collected from municipal waterworks, the qualified rate was 100. 00% ; 96 were from private waterworks, the qualified rate was 75. 00% ; the difference was significant （ χ^2 = 37.42, P =0.130）. The qualified rate of turbidity was 75.00% in private waterworks; that of other indexes were all 100.00% ; qualified rate in first season = that in fourth season 〉 that in second season 〉 that in third season, the difference between seasons was signifi- cant （χ^2 = 39.11, P = 0.00 ）. [ Conclusion ] Peripheral water qualified rate in municipal waterworks is better than that in private waterworks. Relevant departments should enhance the supervision and test of water quality in private waterworks, and speed up the Municipal process of private waterworks in Longhua District simultaneously.
出处
《职业与健康》
CAS
2010年第4期444-445,共2页
Occupation and Health
关键词
末梢水
水质
分析
Peripheral water
Water quality
Analysis
