摘要
目的了解南京市溧水区学生饮用水的安全状况,为加强学生饮用水的监督管理措施提供科学依据。方法在全区中小学采集学生饮用水,按照国家标准方法进行检测。结果共检测样品479份,总合格率为86.8%;2012-2014年学生饮用水合格率分别为78.7%、87.9%和92.9%;菌落总数、色度、大肠菌群、浑浊度和余氯检测合格率由低到高分别为93.5%、97.9%、98.1%、98.3%和98.9%,其中菌落总数检测合格率最低,其他检测指标均合格;桶装纯净水和自制净水检测合格率分别为89.4%和77.7%,两者检测合格率比较差异有统计学意义(P<0.05);夏秋季节和冬春季节学生饮用水检测合格率分别为83.9%和91.0%,两者检测合格率比较差异有统计学意义(P<0.05)。结论溧水区学生饮用水受到了不同程度的污染,相关部门应采取综合性预防控制措施,加强监督管理,确保学生饮用水的安全。
ObjectiveTo investigate safety of drinking water for students in Lishui District of Nanjing and provide a scientific basis for enhancing supervision and administration of drinking water, nethodsSamples of drinking water for students were collected from elemental and middle schools in the whole district and analyzed by methods according to national standards. ResultsA total of 479 samples were analyzed, and the total conformity rate was 86. 8%. From 2012 to 2014, the conformity rates of drinking water for students were 78.7%, 87.9% and 92.9%, respectively. Conformity rates of total colony count, colority, coliforms, turbidity and residual chlorine were 93.5%, 97.9%, 98.1%, 98.3% and 98.9%, respectively. The conformity rate of total colony count was the lowest, while all other indicators meet the standards. Conformity rates of bottled purified water and self -made purified water were 89.4% and 77.7%, respectively; this difference was statistically significant （P 〈 0. 05）. Conformity rates of drinking water for students were 83.9% and 91.0% in summer/autumn and winter/spring, respectively; the difference was statistically significant （P 〈 0.05 ）. ConclusionDrinking water for students in Lishui District has been contaminated to different degrees. Related departments should take comprehensive prevention and control measures and enhance supervision and administration to ensure safety of drinking water for students.
出处
《预防医学情报杂志》
CAS
2017年第6期564-567,共4页
Journal of Preventive Medicine Information
关键词
学生饮用水
预防控制
检测
监督管理
drinking water for students
prevention andcontrol
analysis
supervision and administration
