Pollution Assessment of Heavy Metal in Sevage Irragation Region of Fen River in Linfen Area
DONG Miao
GAO Yan
ZHANG Yong-qing
Abstract：In order to determine the pollution condition of heavy metal in the soil of sevage irrigation region of Fen River in Linfen area,the contents of Zn,Cu,Ni,Pb,Cd,Cr,Hg and As in this area were analyzed,and the potential ecological risk index and geoaccumulation index were used to evaluate the degree of heavy metal contamination in soil.The results indicated that the average contents of Zn,Cu,Pb,Cd,Hg and As were higher than the background values of that in Shanxi soil;the average contents of Zn,Cu,Ni,Pb,Cd,Cr,Hg and As were lower than the second class limit value of that in the nation standard for soil environment quality,except the content of Ni in 5% sampling points,the content of Pb in 3 7% sampling points and the content of As in 1%sampling points;the average contents of Zn,Cu,Ni,Pb,Cd,Cr,Hg and As were lower than the third class limit value of that in the nation standard for soil environment quality in all sampling points.The geoaccumulation index order was Hg>Cd>Pb>Cu>Zn>As>Ni>Cr,the potential ecological risk index order was Hg>Cd>Pb>As>Cu>Ni>Cr>Zn,the pollution level was no to moderate-strong pollution level,the risk intensity was strong.Heavy metals with high levels of pollution were affected not only by the quality of irrigation water,but also by the irrigation times,agricultural fertilization,transportation,industrial and mining enterprises,daily life and production activities were closely related.
Keywords：Fen River in Linfen areasevage irrigation regionheavy metals contaminationdifferences in the spatial distributionecological risk assessment
Publication Date：2014-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 72-78 )