Pollution and Ecological Risk Assessment of Heavy Metals in the Surrounding Soil of Industrial Park in Zhongshan City
The purpose of this study was to analyze the contents and pollution characteristics of five heavy metals (chromium,cadmium,copper,nickel,and zinc) in the soil surrounding of the main industrial parks in Zhongshan City with the new standard value.Nemero-index,Geo-accumulation-index,Pearson,Hakanson potential ecological risk index were used to assess the pollution and ecological risk of heavy metals in these soils.The experimental results showed that the surrounding soil in industrial parks has light heavy metal pollution,just only Cr did not exceed the standard,the exceeded rate was the following order:Cd ＞ Ni ＞ Cu ＞ Zn ＞ Cr.Geo-accumulation index indicated that the pollution degree of these metals ranged from heavy to light is:Cd ＞Ni ＞ Cu＞ Zn ＞ Cr.The significant correlation was presented between Cr and Cu,Cd and Ni.In the present work,the ecological risk of heavy metals was in the following order:Cd＞Cu ＞ Ni ＞ Cr ＞ Zn.The ecological risks of heavy metals in these soils from light to moderate risk level is that,more than 56％ of the samples are in the light risk level,more than 44％ of the samples are in the moderate risk level.
NETL
NSTL
万方数据
维普
