2007年-2010年宁波市江北区农村饮用水水质监测结果分析

An analysis over results of the monitor of drinking water in the countryside of Ningbo,Jiangbei District During the Period 2007-2010

目的:了解宁波市江北区农村生活饮用水卫生状况,保障人民饮水安全,为制定新农村建设科学决策提供依据。方法:2007年-2010年,每年采集丰水期、枯水期江北区农村不同供水方式的不同水样各29份,共计232份,按GB5750-2006《生活饮用水卫生规范》进行检测与分析。结果:232份不同来源的农村饮用水,24个项目检测结果显示,合格率最低的为河水、井水,合格率分别为55%和64%。不合格项目主要为色度、浑浊度、耗氧量、氨氮、亚硝酸盐氮、细菌总数、大肠菌群,合格率分别为35%、40%、36%、53%、39%、38%、62%。结论:江北区农村水质卫生状况仍然较差,水源水受到不同程度的污染。

Objective：Learn sanitary condition of drinking water in the countryside of Ningbo Jiangbei district to safeguard water quality and provide basis for the formulating of scientific strategy.Methods： A total of 232 samples were collected from different sources and seasons in the countryside of Jiangbei district each year during the period 2007-2010.Samples were sent for laboratory tests according to GB5750-2006.Results： According to the results of 24 different tests,the least qualified parameters were chroma,turbidity,COC,TAN,nitrite nitrogen,total bacterial count,MPN,with qualify ratio of 35%,40%,36,53%,39%,38%,and 62% respectively.River water and well water claimed the lowest qualify ratio 55% and 64% respectively among different sources.Conclusion： The sanitary condition of drinking water in the countryside of Jiangbei district was still comparatively poor.Source water was subject to varied degrees of pollution.