摘要
目的探讨影响涟水县农村生活饮用水卫生安全的主要影响因素,为政府治理提供科学依据。方法对2014年-2016年涟水县城乡水厂及其生活饮用水监测资料进行综合分析。结果涟水县城乡生活饮用水质量存在明显的差别,城区优于农村,农村枯水期优于丰水期。在农村生活饮用水中,微生物、理化指标不合格项次分别占总不合格项次的97. 93%、2. 07%,微生物指标不合格项占比远高于理化指标(χ~2=1 067. 983,P=0. 000),不合格项主要集中在菌落总数、总大肠菌群、耐热大肠菌群,枯水期、丰水期微生物指标不合格项次分别占同期总不合格项次的94. 64%、98. 72%,丰水期微生物不合格项占比高于枯水期(χ~2=7. 432,P=0. 015),丰水期微生物指标超标问题更为严重。结论涟水县农村生活饮用水微生物指标超标是影响其水质的最主要因素,存在着引发多种介水性疾病的隐患,需要有关单位和部门的关注,并采取针对性措施加以治理。
Objective To explore the main factors influencing drinking water safety in rural areas of Lianshui Country,so as to provide scientific basis for the government department. Methods The monitoring data of urban and rural drinking water in Lianshui Country from 2014 to 2016 were conducted for comprehensive analysis. Results The drinking water quality between urban and rural areas in Lianshui County had significant difference,which in urban area was superior to that in rural area,and in drought period was better than that in abundant period. The unqualified rates of microbiological and physical-chemical indicators for drinking water in rural area were respectively 97. 93% and 2. 07%. The unqualified rates of microbiological indicators were higher than physical-chemical indicators（ χ^2= 1 067. 983,P = 0. 000）. The unqualified items mainly focused on the total number of colonies,total coliform bacteria,and heat-resistant coliform bacteria. The unqualified rates of microbial indicators in the drought period and abundant period were 94. 64% and 98. 72%. The unqualified rates of abundant period were higher than drought period（ χ^2= 7. 432,P = 0. 015）. Microbiological indicators exceeding standards in abundant period was severe. Conclusion Excessive microbial indicators of drinking water in the rural area of Lianshui County are the main factors affecting water quality. Hidden problems could cause various water-borne diseases. Attention needs to be paid by relevant units and departments,and targeted measures must be taken.
作者
张军成
ZHANG Jun-cheng(Lianshui Center for Disease Control and Prevention,Lianshui,Jiangsu 223400,China)
出处
《中国卫生检验杂志》
CAS
2018年第21期2672-2675,2678,共5页
Chinese Journal of Health Laboratory Technology
关键词
农村
生活饮用水
卫生安全
Rural area
Domestic drinking water
Hygiene security
