【摘要】 对新乡市自来水自备水源地土壤和地下水的重金属含量特征进行了取样分析。结果表明,土壤中Pb、Cr、Cu、Cd含量均能达标,Zn和Ni含量超标,其平均值分别为1 213.80、189.56 mg/kg;地下水中Pb、Cr、Cu、Cd含量都达标,由于土壤中Zn和Ni主要以残渣态形态存在,地下水中Zn和Ni含量未超标。更多还原

【Abstract】 The distribution of heavy metals in soil and ground water of supplying running water resources in Xinxiang was investigated.Results showed that the concentration of heavy metals Cd,Pb,Cu,Cr met the national soil standard,while Zn and Ni exceeded stipulated standard level.The average content of Zn and Ni were 1 213.80 mg/kg and 189.56 mg/kg.The content of Pb,Cr,Cu,Cd in ground water met the prescribed national water standard.Zn and Ni were under the standard because the highest ratio of metal form was residual fraction.更多还原