Evaluation of Soil Pollution Caused by Heavy Mental in Wetland of the Yellow River Estuary National Park
To study the soil pollution status and ecological risk of the wetland in the Yellow River Estuary National Park,a total of 20 sampling points were set up along the Dongying section of the old Yellow River course,the mouth of the Yellow River and the coastal areas for soil collection,and the content of Pb,Cd,Cr,Cu,Zn,Ni,Hg and As were detected.Soil pollution was evaluated by comprehensive pollution index,ground accumulation index and potential ecologi-cal risk index.The results show that the mass ratios of Pb,Cd,Cr,Cu,Zn,Ni,Hg and As in the study area are 16.4,0.11,57.3,14.0,46.9,20.0,0.014,7.71 mg/kg respectively,which all meet the risk control standards for agricul-tural land soil pollution.The integrated soil contamination index of the study area is 0.57,the land accumulation index is-0.23,and the potential ecological risk index is 65.54,indicating that the study area is a non-polluted soil with a slight potential ecological risk.
soil pollutionheavy mentalcomprehensive pollution indexgeological accumulation indexpotential eco-logical risk assessmentthe Yellow River Estuary National Park
NETL
NSTL
万方数据
