2018—2023年河南省漯河市生活饮用水总硬度监测结果  

Monitoring results of drinking water total hardness in Luohe City of Henan Province from 2018 to 2023

作　　者：彭玉[1] 付韬[1] 周宁[1] PENG Yu;FU Tao;ZHOU Ning(Luohe Center for Disease Control and Prevention,Luohe 462001,China)

机构地区：[1]漯河市疾病预防控制中心,河南漯河462001

出　　处：《现代疾病预防控制》2025年第3期235-239,共5页MODERN DISEASE CONTROL AND PREVENTION

摘　　要：目的了解漯河市生活饮用水总硬度状况,指导居民健康饮水,保障饮用水安全。方法收集2018—2023年漯河市生活饮用水水质监测数据,对总硬度变化情况进行描述和统计分析。结果2018—2023年共检测生活饮用水2588份,总硬度188.0 mg/L,合格率为98.3%,年度间差异有统计学意义(H=26.275,P<0.001),各县区间水质总硬度差异有统计学意义(H=469.560,P<0.001);出厂水和末梢水总硬度分别为231.6、150.6 mg/L,年度间差异均有统计学意义(H_(出厂水)=14.620,P=0.012;H_(末梢水)=19.562,P=0.002);丰水期和枯水期总硬度分别为177.1、194.1 mg/L(H=22.329,P<0.001);农村水和城市水总硬度分别为240.0、136.0 mg/L(H=406.067,P<0.001);江河水、深井水总硬度分别为137.1、232.0 mg/L(H=280.945,P<0.001);生活饮用水pH与总硬度呈负相关关系(r=-0.43,P<0.001),生活饮用水溶解性总固体与总硬度呈正相关关系(r=0.35,P<0.001)。结论漯河市生活饮用水总硬度水平总体比较理想,但个别县区有不合格水样,饮用水总硬度存在年度、区域和水期的差异。Objective To understand the total hardness of drinking water in Luohe City,with the aim at guiding the residents towards healthy drinking and ensuring the safety of drinking water.Methods The monitoring data of drinking water quality in Luohe City from 2018 to 2023 were collected,and the changes of total hardness were described and statistically analyzed.Results From 2018 to 2023,a total of 2588 drinking water samples were tested.The total hardness was 188.0 mg/L,with a qualification rate of 98.3%.There were statistically significant differences in total hardness across different years(H=26.275,P<0.001)and counties(H=469.560,P<0.001).The total hardness in finished and terminal water was 231.6 mg/L and 150.6 mg/L,respectively,having the significant differences were also observed in finished and terminal water across different years(H_(finished)=14.620,P=0.012;H_(terminal)=19.562,P=0.002).The total hardness in the wet season and dry season was 177.1 mg/L and 194.1 mg/L,respectively(H=22.329,P<0.001).The total hardness of rural water and urban water was 240.0 mg/L and 136.0 mg/L,respectively(H=406.067,P<0.001),The total hardness of river and deep well water was 137.1 mg/L and 232.0 mg/L,respectively(H=280.945,P<0.001).PH value of drinking water was negatively correlated with total hardness(r=-0.43,P<0.001),while the total dissolved solids(TDS)were positively correlated with total hardness(r=0.35,P<0.001).Conclusions The overall level of drinking water total hardness in Luohe City is relatively ideal,but there are unqualified water samples in some counties or districts,and there are differences in the total hardness of drinking water by year,region and water period.

关 键 词：漯河市 生活饮用水 总硬度 PH 溶解性总固体 

分 类 号：R123.1[医药卫生—环境卫生学]