【摘要】 目的:了解钟祥市饮用井水重金属(Fe、Cu、Mn、Pb、As)含量,为当地生活饮用水管理提供科学依据。方法:按照中国国家生活饮用水卫生标准和生活饮用水标准检验方法,随机抽取钟祥市13个乡镇监测点267份井水进行重金属检测和评价。结果:钟祥市井水铁的中位水平为0.37(0.13～1.19 mg/L)、超标率为54.7%,锰为0.15(0.03～0.73 mg/L)、超标率为56.93%,各监测点间水样中铁、锰含量及超标率差异均有统计学意义,P<0.01。1.12%的水样As超标,Cu和Pb均未超标。结论:钟祥市井水中铁、锰超标现象严重,需要高度重视。更多还原

【Abstract】 Objective: We assessed the heavy metal(Fe,Cu,Mn,Pb,As) content of Zhongxiang City(Hubei,China) drinking water to provide scientific basis for efficient management of local drinking water.Methods:We randomly selected 267 samples of well water from 13 country monitor sites,and analyzed heavy metal content by the standard method specified in the Chinese National Sanitary Standard of Drinking Water.Results:In Zhongxiang City,the mean Fe content is 0.37(0.13～1.19 mg/L),over limit rate is 54.7%,Mn 0.15(0.03～0.73 mg/L),over limit rate 56.93%;there was a significant difference in Fe and Mn content and over limit rate between different monitor sites(P<0.01).In 1.12% of all tested samples,As content is over limit.The content of Cu and Pb is normal in all tested samples.Conclusion:There is a severe problem of Fe and Mn content over limit in Zhongxiang City drinking water,which should be taken seriously.更多还原