摘要
目的分析2008-2011年某市太湖水源生活饮用水水质状况及变化趋势,为保障和改善居民饮用水卫生安全和卫生质量提供科学依据。方法依据《生活饮用水卫生标准》(GB 5749-2006)对2008-2011年某市太湖水源生活饮用水监测结果分析及评价。结果检测水样1 432份,合格1 331份,总合格率92.9%;年度合格率由2008年的80.5%提高到2011年的97.1%,差异有统计学意义(χ2=40.078,P<0.001);不合格指标中,菌落总数、浑浊度和铁超标项次数最多,为主要不安全水质指标;对不同季节菌落总数超标率比较,差异有统计学意义(χ2=10.215,P<0.017),其中第三季度最高(5.3%)。结论目前该市太湖水源生活饮用水水质基本符合GB 5749-2006的要求,少数管网水质存在微生物污染等安全隐患,今后工作中必须加强管网末梢水质的卫生监督管理。
Objective To analyze the quality and variation trend of drinking water derived from Taihu Lake in a certain city, provide scientific basis for further improvement on potable water security and quality. Methods To analyze and evaluate the monitoring results of drinking water of Taihu Lake water in a city during 2008 - 2011, according to Standards for Drinking Water Quality （GB 5749 -2006） . Results Detected water sam- ples 1, 432, 1, 331 samples qualified , the total qualified rate was 92. 9% ; The annual rate improved from 80. 5% in 2008 to 97. 1% in 2011 , there was a statistically significant difference （X^2 = 40.078, P 〈 0. 001 ） . Among the unqualified indexes, total number of colonies, turbidity and iron were the major unsafe indicators ; There was a statistically significant difference in the total number of colonies$ over standard rate of different seasons （X^2 = 10. 215, P 〈0. 017）, of which is the highest in the 3ra quarter （5. 3% ） . Conclu- sions The drinking water quality of Taihu Lake water source basically met the requirement of GB5749 - 2006 in the city, there were microbial pollution and other security danger hidden in part of pine network water quality, health supervision and administration of the network peripheral water quality should be strengthen in the fu- ture.
出处
《医学动物防制》
2014年第5期473-475,共3页
Journal of Medical Pest Control
基金
环境医学工程教育部重点实验室开放课题(2011EME003)
苏州市饮用水安全与水性疾病监测公共服务平台(SZP201106)
苏州市医学重点学科(苏卫科教[20131号]
关键词
饮用水
太湖水源
水质监测
评价
Drinking water
Taihu water source
Water quality monitoring
Evaluation
