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目的:掌握昆山市自来水水质变化情况,为加强饮用水质量监管提供必要的依据。方法:2008-2011年中在昆山市的出厂水和末梢水监测点按国家相关标准进行水样的采集、检验和评价,监测数据采用SPSS 17.0软件统计,并进行χ2检验和多元线性回归分析。结果:出厂水合格率均为100.0%,末梢水合格率分别为90.5%、97.5%、97.7%、98.2%。出厂水和末梢水的差异无统计学意义(P>0.05)。不合格项目主要有菌落总数、氯气及游离氯制剂、氟化物、浑浊度和pH。结论:2008-2011年,昆山市生活饮用水水质总体情况较好,但应加强输水管网的管理和监测,以确保末梢水的水质质量。
Objective: To master the water quality of tap water in Kunshan City and provide the necessary basis for strengthening the supervision of drinking water quality. Methods: During 2008-2011, water samples were collected, tested and evaluated according to the relevant national standards at the factory water and peripheral water monitoring points in Kunshan. The monitoring data were analyzed by SPSS 17.0 software and analyzed by χ2 test and multiple linear regression analysis. Results: The qualified rate of ex-factory water was 100.0% and the qualified rate of peripheral water was 90.5%, 97.5%, 97.7% and 98.2% respectively. There was no significant difference between the factory water and the peripheral water (P> 0.05). The unqualified items are the total number of colonies, chlorine and free chlorine preparations, fluoride, turbidity and pH. Conclusion: From 2008 to 2011, Kunshan City, drinking water quality overall situation is better, but management and monitoring of the water pipe network should be strengthened to ensure the water quality of the peripheral water.