某市2021~2023年生活饮用水水质卫生监测结果分析

Analysis of Drinking Water Quality and Sanitation Monitoring Results in a City from 2021 to 2023

目的:分析探讨某市生活饮用水水质卫生检测结果,为加强饮用水安全管理工作提供科学依据。方法:收集2021~2023年枯水期、丰水期饮用水卫生监测资料,分析其监测结果。结果:2021~2023年城市与农村饮用水总体合格率为90.64%,2021与2023年比较差异有统计学意义(P<0.05),2021与2022年、2022与2023年比较差异均无统计学意义(P>0.05);枯水期检测合格率85.96%,丰水期合格率95.32%,枯水期与丰水期合格率比较差异显著(P<0.05);农村饮用水检测合格率为83.33%,城市饮用水检测合格率100%,农村饮用水与城市饮用水合格率比较差异显著(P<0.05);影响都匀市水质卫生合格率的有总大肠菌群、大肠埃希氏菌、菌落总数、理化指标、二氧化氯等指标,其中理化指标总体合格率明显高于微生物指标和二氧化氯指标。结论:农村生活饮用水水样合格率较低,水质状况不佳,虽然逐年得到改善,但还应继续加强对农村生活饮用水的监测,提高生活饮用水的质量。

Objective:To analyze and discuss the results of sanitary inspection of drinking water quality in a city,providing scientific grounds for reinforcing the management of drinking water safety.Methods:Drinking water hygiene monitoring data from both low-flow and high-flow periods between 2021 and 2023 were collected and analyzed.Results:The overall compliance rate of drinking water in urban and rural areas from 2021 to 2023 was 90.64%.A statistically significant difference was observed when comparing 2021 with 2023(P<0.05),while no significant differences were found when comparing 2021 with 2022 or 2022 with 2023(P>0.05).The compliance rate during the low-flow period was 85.96%,and during the high-flow period,it was 95.32%,with a statistically significant difference between the two periods(P<0.05).The compliance rate for rural drinking water samples was 83.33%,while that for urban water was 100%,indicating a significant difference(P<0.05).Factors affecting the compliance rate included total coliforms,Escherichia coli,total bacterial count,physicochemical parameters,and chlorine dioxide,among which the overall compliance rate of physicochemical parameters was significantly higher than that of microbial parameters and chlorine dioxide.Conclusion:The compliance rate of rural drinking water samples is relatively low,reflecting suboptimal water quality.Although gradual improvements have been observed over time,continued and intensified monitoring of rural drinking water is necessary to further enhance the quality of drinking water.