哈尔滨市DL区自来水质量检验与分析

Quality Determination and Analysis of Tap Water in DL District of Harbin

在哈尔滨市ＤＬ区，按二次供水设施材质类型及建筑物新旧程度共采集９种水样（包括自来水源水和自来水），分别按国家标准ＧＢ５０－８５和ＧＢ４９－８５进行水质检验和评价。结果表明二次供水设施材质及建筑物年限对饮水质量无明显影响，但除源水外的４８个水样中有５项指标出现超过国家卫生标准的情况。其中浑浊度和铅含量全部水样超标，超标率１００％，色度、铁含量和锰含量的超标率分别为７１％、３１％和４４％。鉴于该区自来水中铅含量普遍超标，作者建议对该区儿童的智力发育和神经行为进行调查和检测，同时对自来水中铅含量的影响因素进行深入探讨。

Nine water samples (including water head water and tap water) were taken according to the type of reservoir and the age of the building in DL district,Harbin.Comparing with national standard GB5085 and GB4985,the tap water was determined and the quality of tap water was evaluated.The results showed that the type of the reservoir and the age of the building had not significant effects on the water health quality.But,5 times in all determined items of 48 samplings (did not include the head water) exceeded the limit of the national standard,especially both turbid degree and lead items,all the results exceeded the standard,the rate of exceeded standard was 100%.While,the rates of exceeded standard of color,iron,and manganese were 71%,31%and 44% respectively.As for the high lead amount in tap water,it will be suggested that investigation and inspection about the intelligence development and neural behaviour of the children in this area should be carried out and other factors that influence the lead amount in water should be probed in a further step.