2016—2020年四川省农村饮用水供水状况和水质变化趋势分析  

Trend analysis of rural drinking water supply status and water quality in Sichuan,2016-2020

作　　者：秦岭[1] 朱鸿斌[1] 郭虹雨 QIN Ling;ZHU Hong-bin;GUO Hong-yu(Sichuan Center for Disease Control and Prevention,Chengdu,Sichuan 610041,China)

机构地区：[1]四川省疾病预防控制中心,四川成都610041

出　　处：《现代预防医学》2023年第4期618-622,共5页Modern Preventive Medicine

摘　　要：目的分析四川省农村饮用水水质监测数据和供水工程信息,为农村饮用水卫生安全保障提供依据。方法收集和整理四川省2016—2020年农村集中式供水水质监测数据及其对应的供水工程基本信息,采用卡方检验比较各年度间供水工程状况,运用水质指数评价法和Kruskal-Wallis H非参数检验比较水质差异。结果2016—2020年四川省监测农村饮用水水样中完全处理水样比例、大型工程(Ⅰ型和Ⅱ型)水样比例、消毒水样中配备有消毒设备且按要求使用的水样比例都有提高,各年度间差异均有统计学意义(P<0.05)。2020年浑浊度水质指数值低于其余各年度,2020年总大肠菌群水质指数值低于2016年和2019年,Ⅰ型供水工程水样浑浊度水质指数值低于其余规模水样,Ⅰ型和Ⅱ型供水工程水样总大肠菌群水质指数低于其余规模水样,差异均有统计学意义(调整后P<0.05)。结论2016—2020年四川省农村饮用水供水状况和水质总体上有改善,应持续推进农村供水规模化、标准化改造,保障饮用水卫生安全。Objective To analyze the monitoring data and project information on rural drinking water in Sichuan Province and to provide the basis for safety safeguard of rural drinking water.Methods The water quality monitoring data of rural central water supply and the information on water supply projects in Sichuan Province from 2016 to 2020 were collected.Chi-square test was used for comparison of water supply projects status in different years,water quality index assessment.Kruskal-Wallis H nonparametric test were used for comparison of water quality.Results The proportion of fully treated water samples,large-scale projects(Types Ⅰ and Ⅱ)water samples,and disinfection water samples equipped with disinfection equipment and used as required increased from 2016 to 2020,with statistically significant differences between years(P<0.05).Turbidity index value in 2020 was the lowest of all years,total coliform index value in 2020 was lower than that in 2016 and 2019,the turbidity index value of type Ⅰ water supply projects was lower than that of other scale projects,the total coliform index value of type Ⅰ and type Ⅱ water supply projects was lower than that of other scale projects,all with statistically significant differences(adjustment P<0.05).Conclusion The rural drinking water supply status and water quality in Sichuan Province had been improved from 2016 to 2020.Large-scale and standardization transformation of rural drinking water supply should be promoted continuously for the safety of drinking water.

关 键 词：农村 饮用水 供水状况 水质 

分 类 号：R123.1[医药卫生—环境卫生学]