2017—2021年贺州市农村集中式供水饮用水水质调查  

The quality of drinking water by centralized water supply system in rural areas of Hezhou city in 2017-2021

作　　者：谢静 林思宇[1] 廖健[1] XIE Jing;LIN Siyu;LIAO Jian(Hezhou Center for Disease Control and Prevention,Hezhou,Guangxi Zhuang Autonomous Region 542899,China)

机构地区：[1]贺州市疾病预防控制中心,广西壮族自治区贺州542899

出　　处：《中国预防医学杂志》2023年第3期270-273,共4页Chinese Preventive Medicine

摘　　要：目的 了解2017—2021年贺州市农村集中式供水生活饮用水的卫生状况,为政府和有关部门制定政策和措施提供可靠依据。方法 贺州市各监测乡镇(含辖区村)设立2~4个监测点,由专业技术人员收集2017—2021年农村集中式供水监测点水质样品,频率为每年2次,枯水期(3—4月)和丰水期(7—9月)各1次,每个监测点分别采集出厂水和末稍水样,并进行统计分析。结果 共采集农村饮用水水样1 566份,样品总合格率为68.26%(1 069/1 566);2017—2021年合格率呈逐年上升趋势,2021年稍有下降,不同年份水质合格率差异有统计学意义(χ^(2)=24.879,P<0.01);各县(区)合格率依次为昭平县>富川县>平桂区>八步区>钟山县,差异有统计学意义(χ^(2)=20.941,P<0.01);2019年、2020年丰水期水质合格率大于枯水期,差异有统计学意义(χ^(2)=11.919、10.323,P<0.01);2017、2018、2021年不同水期水质合格率的差异无统计学意义(P>0.01);微生物指标合格率[71.90%(1 126/1 566)]低于其他指标合格率,差异有统计学意义(χ^(2)=635.135,P<0.01)。结论 微生物污染依然是贺州地区农村饮用水水质主要的卫生问题,应当引起相关部门的重视,加强农村水卫生管理,提升水质合格率。Objective To understand the sanitation status of rural centralized water supply in Hezhou,and to provide reliable basis for the government and related departments to formulate policies and measures.Methods Drinking water samples were collected from monitoring sites in rural areas of Hezhou by well-trained personnel from 2017 to 2021 twice a year during dry season(March to April)and wet season(July to September).Two water samples were collected each time including distribution water sample and end-use water sample.Water samples were tested and analyzed.Results A total of 1566 rural drinking water samples were collected from 2017 to 2021,and overall 68.26%(1069/1566)of water samples met drinking water standards,which increased from 2017 to 2020,while decreased slightly in 2021,and varied significantly in different year(χ^(2)=24.879,P<0.01).The pass rates of drinking water was the highest in Zhaoping county,followed by Fuchuan county,Pinggui district,Babu dstrict,while was the lowest in Zhongshan county(χ^(2)=20.941,P<0.01).According to the test results of rural centralized water supply in Hezhou from 2017 to 2021,the pass rates of drinking water in 2019 and 2020 were higher in wet seasons than that in the dry seasons,and the differences were statistically significant(χ^(2)=11.919,10.323,P<0.01).The pass rate for microbial indexes was 71.90%(1126/1566),which was significantly lower than that of other indexes(χ^(2)=635.135,P<0.01).Conclusions Microbial contamination is still the major sanitary problem of drinking water quality in rural areas of Hezhou,which should be addressed by local government.Strengthening rural water sanitation management can significantly improve the quality of drinking water.

关 键 词：农村 水质 卫生 监测 

分 类 号：R123[医药卫生—环境卫生学]