零陵区中小学校饮用水卫生现状及介水传染病调查

Investigation on Drinking Water Quality and Water-borne Infection in Middle and Elementary Schools of Lingling District

目的:了解零陵区中小学校饮用水卫生现状及介水传染病的发病情况,为进一步改善饮用水质量,预防介水传染病的发生和流行提供科学依据。方法按照国家水质分析标准方法对该区的16所中小学校的生活饮用水进行分析。按照拟定的调查表,采用现状加回顾性的流行病学的调查方法对饮用该水的学生进行介水传染病的发病情况调查。结果该区中小学校饮用水的合格率仅为25.00%,不合格项目为细菌总数、总大肠菌群超标,游离性余氯;近1年16所学校饮水学生的肠炎、细菌性痢疾、甲型肝炎的发病率分别为5.55%、0.34%、0.09%。结论零陵区中小学校饮用水存在微生物污染,导致了介水传染病的发生。

Objective To understand the present situation of drinking water of middle and elementary schools and the prevalence of waterborne infectious diseases in Lingling district in Hunan Province so as to provide scientific evidence to improve the drinking water quality and prevent the occurrence of epidemic of waterborne infectious diseases.Method:16 schools’ drinking water was tested by using the state standard method of water quality analysis. Cross-sectional and retrospective study was conducted and self-made questionnaire was used to investigate the prevalence of waterborne infectious diseases in students.Result:The qualified rete of drinking water of schools in this district was 25.00 %, the failed items were the total bacterial count, total coliform group and free residual chiorine. The annual incidence rate of enteritis, dysentery and hepatitis A was 5.55%、0.34% and 0.09% respectively. Conclusion :Microbiological contamination is found in the drinking water of this district, which led to the occurrence of waterborne infectious diseases.