2010-2012年宁波江北区部分农村生活饮用水水质分析

Water quality of drinking water in rural areas of Jiangbei District,Ningbo during 2010-2012

目的:了解宁波江北区农村丰水期、枯水期生活饮用水水质卫生状况及其变动状况。方法:现况调查。按GB/T5750-2006生活饮用水标准检测方法进行检测,按GB/T5749-2006生活饮用水卫生标准进行评价。结果:343份不同来源的农村饮用水,合格总数为255份,总合格率为74.34%。其中河水不合格50份,合格率41.86%;井水不合格14份,合格率70.83%;水源水不合格14份,合格率78.46%;出厂水不合格1份,合格率97.92%;管网水不合格9份,合格率90.63%。其中合格率最低为河水。各种水质检测结果差异有统计学意义(χ2=75.79,P<0.01)。结论:目前农村生活饮用水水质的改善工作任重而道远。职能部门应加强监督监测,加强饮用水的卫生防护,加强环境卫生和健康知识教育。

Objective To explore the hygienic state of drinking water and its changing quality during high and low water periods in rural areas of Jiangbei district of Ningbo city. Methods The survey was carried out according to testing methods for drinking water GB/T5750-2006 standard,and the water was evaluated according to the sanitary standard for drinking water GB/T5749-2006. Results Of 343 samples of drinking water from different sources, 255 （74.34%） were qualified. A total of 50 （41.86%）samples of river water, 14 （70.83%）samples of well water, 14 （78.46%）samples of source water,1 （2.08%）sample of chlorinated water, and 9 （9.37%）samples of pipe water was not qualified. The qualified rate of river water was the lowest. There were significant differences in testing results of water quality（x^2 = 75.79 ,P〈0.01）. ConclusionCurrent work of improving the quality of drinking water in rural areas is to be strengthened. Functional departments should strengthen supervision and monitoring, promote health protection of drinking water and reinforce health education.