2018—2022年佳木斯市城鄉(xiāng)飲用水水質(zhì)變化趨勢(shì)分析

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Analysis of the Changing Trends in the Quality of Urban and Rural Drinking Water in Jiamusi City from 2018 to 2022

JIANG Yi1，LU Zichun1*，WANG Yanxu1，LIU Cuiyu'， HU Zhongying1，LIU Bingbing （1.Jiamusi Center for Disease Control and Prevention， Jiamusi 154oo7， China; 2.School of Public Health， Jiamusi University， Jiamusi 1540o7， China）

Abstract： Objective： To analyze the trend of changes in drinking water quality in urban and rural areas of Jiamusi city from 2018 to 2022，evaluate its hygiene status and influencing factors，and provide scientific basis for optimizing water supply management. Method： Based on data from 1 609 monitoring points in 10 counties （cities）and districts ofJiamusi city from 2018 to 2022，analyze the qualified rateofurban and rural drinking water， the qualified rate of main monitoring indicators，and their changing trends.Result：From 2018 to 2022，a total of 3 218 water samples were monitored in Jiamusi city，including 2 923qualified water samples，with an average total qualified rate of 90.83% .the qualified rate of drinking water in rural areas （95.42%） is significantly higher than that in urban areas （78.21% ） （χ2=224.042 ， P<0.001 ）; there was no significant difference in the pass rate between the wet season （91.17%） and the dry season （90.50%） ） （χ2=0.437 0 P=0.509 ）; the qualified rate of factory water （93.43% ） is the highest among all stages， and the difference between groups is statistically significant （χ2=16.866，P<0.001） Among the mainunqualified indicators，thequalifiedrates ofiron，manganese，turbidity，visible substances，ammonia nitrogen， and free residual chlorine were significantly improved （P<0.001 ）.Conclusion： The drinking water qualityin Jiamusi cityhas significantly improved，but attntion stillneeds to bepaid tourban-rural differences， terminal water in the pipeline network，and water quality stability during the dry season.Suggest strengthening the maintenance of rural water supply networks，optimizing disinfection strategies，and exploring intellgent monitoring technologies to further improve management levels.

Keywords： drinking water quality; health surveillance; analysis of results; trends of change

飲用水衛(wèi)生狀況是保障公眾身體健康、維系社會(huì)穩(wěn)定的基礎(chǔ)性要素，其質(zhì)量?jī)?yōu)劣直接關(guān)系到介水傳染病的防控效果以及慢性健康風(fēng)險(xiǎn)的規(guī)避能力。（剩余3985字）