2022—2024年东兰县生活饮用水微生物检测结果分析
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Analysis ofMicrobial TestResults of Drinking Water in Donglan County from 2022 to 2024
WEI Lina （Donglan County Disease Control and Prevention Center， Hechi 5474oo， China）
Abstract： Objective： To analyze the microbiological detection results of drinking water in Donglan county from 2022 to 2O24 to evaluate the microbial safety status of drinking water in the regionand providedata support for subsequent improvement of water quality management. Method： Based on the 2022—2024 Donglan county drinking water sanitation monitoring project， systematic sampling and testing of factory water， peripheral water，secondary water supply and source water samples from diffrent years，regions and periods in Donglan county were carred out. Four key microbial indicators were monitoredand analyzed，namely total colony number，Escherichia coli，heattolerant coliform and total coliform fora.Result： The microbiological detection results of drinking water in Donglan county from 2022 to 2024 showed thatthe detection rate of the total number of colonies was higher in 2022，and the total numberofcolonies in the three years did not exceed thestandard.The detectionrateofEscherichiacoli is increasing yearbyyear;thedetectionrateofheat-tolerantcoliformbacteria and totalcoliformbacteria increased first andthe decreased.Thedetectionratesof total colonies，Escherichiacoli，heat-tolerantcoliformand totalcoliform bacteria in rural drinking water were higher than those in urban areas （ ）. The detection rate of total colonies in the dry season was higher than that in the wet season （ （P<0.05 ）， but there was no significant difference in the detection rate of Escherichia coli，heat-tolerant coliform and total coliform bacteria （P>0.05 ）. Conclusion： The overall situation ofdrinking water microbiology detection in Donglancounty stillneeds to be improved，and itis recommended that relevant departments continue to strengthen the monitoring and management of drinking water microbial safety to ensure the safety of drinking water for residents.
Keywords： Donglan county; drinking water; water quality; microbiological examination
保障饮用水安全是维护人们身体健康的基础，也是实现社会和谐与可持续发展的重要条件。（剩余5426字）
