蓟县2015年生活饮用水水质监测结果分析

Analysis on monitoring results of drinking water quality in Jixian county

目的了解2015年天津市蓟县居民生活饮用水的水质现状,为加强饮用水安全管理工作提供科学依据和技术支持。方法依据《生活饮用水标准检验方法》（GB/T 5750-2006）、《生活饮用水卫生标准》（GB 5749-2006）对蓟县城区和农村的210份生活饮用水水样进行检测和评价。结果蓟县2015年生活饮用水总体合格率为42.86%（90/210）。枯水期、丰水期的微生物指标合格率分别为66.67%和52.38%,合格率差异有统计学意义（χ^2=4.447,P〈0.05）;市政集中式供水合格率75.00%（15/20）,农村集中式供水合格率43.42%（66/152）,农村分散式供水合格率23.68%（9/29）,不同供水方式合格率差异有统计学意义（χ^2=14.161,P〈0.05）。结论目前蓟县居民生活饮用水的水质合格率较低,应大力推进饮用水安全工程建设,加强部门监管和水源保护,加大卫生知识宣传,确保居民饮用水安全。

Objective To understand the water quality status of resident＇s drinking water in Jixian County of Tianjin in2015 and provided the scientific basis and technical support to enhance the safety management of drinking water.Methods 210 drinking water samples from Jixian county city and rural areas were detected and evaluated according to the Standard examination methods for drinking water（GB/T5750-2006） and Drinking water sanitary standard（GB 5749-2006）. Results The total qualified rate of drinking water in the county was 42.86%（90/210） in 2015. Microbial indicators qualified rate in low-water seasons and wet season were 66.67% and 52.38% respectively with statistical differences in the qualified rates（ χ~2=4.447,P〈0.05）. The qualified rate of the municipal centralized water supply was 75.00%（15/20） and that of centralized water supply in rural areas was 43.42%（66/152）, and the rate of the rural decentralized water supply was 23.68%（9/29）. There were significant differences in the qualified rate of different water supply modes（ χ^2=14.161, P〈0.05）. Conclusion At present the qualified rate of resident＇s drinking water quality in Jixian county is low. The construction of rural drinking water safety projects should be promoted, the relevant departments should strengthen supervision and water resource protection, increase the propaganda of health knowledge and ensure the safety of resident＇s drinking water.