2015~2019年玉林市农村集中式供水水质监测  

Monitoring on water quality of rural centralized water supplies,Yulin city,2015-2019

作　　者：王圆 蒙宗树[1] 覃彦琳[1] 叶晓燕[1] 梁阳[1] WANG Yuan;MENG Zong-shu;QIN Yan-lin;YE Xiao-yan;LIANG Yang(Yulin City Center for Disease Control and Prevention,Yulin,Guangxi,537000,China)

机构地区：[1]玉林市疾病预防控制中心,广西玉林537000

出　　处：《预防医学论坛》2020年第6期472-474,共3页Preventive Medicine Tribune

摘　　要：目的了解玉林市集中式供水水质卫生状况,为相关部门实施农村饮用水卫生管理提供科学依据。方法2015~2019年对玉林市所辖的玉州区和福绵区的供水点进行监测,分别在枯水期、丰水期分批采集出厂水、末梢水进行水样采集、保存和检测,并进行评价。结果共采集农村生活饮用水473份,合格346份,总合格率为73.15%。2015~2019年水质合格率分别为77.08%(74/96)、64.13%(59/92)、67.01%(65/97)、69.79%(67/96)、88.04%(81/92)。丰水期水质合格率77.64%(184/237)高于枯水期68.64%(162/236)(P<0.05);不合格指标中总大肠菌群不合格率最高,为18.82%(89/473),其次是耐热大肠菌群,不合格率为13.74%(65/473)。不同水处理方式的合格率分别为:常规处理77.06%(299/388)、仅消毒69.44%(25/36)、仅沉淀、过滤57.14%(12/21)、未处理35.71%(10/28),不同处理方式合格率差异有统计学意义(P<0.01)。结论玉林市农村集中式供水水质合格率较低,微生物污染仍是水质合格率较低的主要原因。Objective To understand the quality of water in centralized water supplies rural ares of Yulin city,so as to provide scientific evidence for relevant departments to implement rural drinking water sanitation management.Methods The water supply stations in Yuzhou and Fumian district of Yulin city were monitored during 2015-2019,and tap water,terminal water,non-central water were respectively sampled in flood seasons and dry seasons for storage,detection and evaluation.Results A total of 473water samples were detected,and 348samples were qualified,with the overall qualified rate of 73.15%,and the qualified rates were respectively 77.08%(74/96),64.13%(59/92),67.01%(65/97),69.79%(67/96)and 88.04%(81/92)during 2015-2019.The qualified rates in wet seasons(77.64%,184/237)was higher than in dry seasons(68.64%,162/236)with significant difference(P<0.05).The highest unqualified item was total coliform(18.82%,89/473),followed by rmotolerant coliform(13.74%,65/473).The qualified rates of different water treatment methods were 77.06%(299/388)in conventional treatment,69.44%(25/36)in disinfection,57.14%(12/21)in sedimentation and filtration,and 35.71%(10/28)in untreated treatment,respectively,the difference was statistically significant(P<0.01).Conclusion The qualified rate of centralized water supply in rural areas of Yulin city is relatively low,and microbial pollution is still the main reason for the low qualified rate of water quality.

关 键 词：农村集中式供水 水质监测 卫生状况 

分 类 号：R123.1[医药卫生—环境卫生学]