Analysis on Soil Pollution Characteristics of Heavy Metal Elements in the Drinking Water Source of Beiru River
In order to explore the characteristics of heavy metal content in the soil of drinking water sources in the Xiangcheng section of the Beiru River,the single factor evaluation method and the Nemero comprehensive pollution index method were used to comprehensively evaluate the characteristics of heavy metal content in the soil near the drinking water source.The results show that the pollution of water sources is mainly affected by Pb,Zn and Cu,and the elements of Pb,Zn,As,Cu,Ni and Cr are 1.34,1.03,0.87,1.36,0.70 and 0.97 times of the environmental background values,respectively.The highest Pb single-factor pollution index in the study area was 2.35 and the lowest was 0.71,which were in the range of light pollution and clean pollution.The lowest comprehensive pollution index of Nemero in the seven study areas was 0.63 and the maximum was 3.06.And 2%of the soil samples were classified as safe,14%were in the warning line,60%were light pollution,6%were moderate pollution,and 2%were severely polluted.In the 7 study areas,Pb,Zn,As,Cu,Ni and Cr ele-ments all exceeded the standard to varying degrees,and the soil of the north bank of the BeiRu River had the highest level of Pb element exceeding the standard.
Beiru Riversoil heavy metal contentwater source pollution evaluation
NETL
NSTL
万方数据
