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- W2373915794 abstract "Xinghuaying part of Zhengzhou-Kaifeng section along the 310 th national highway was chosen as soil sampling region to investigate the spatial distribution of heavy metals in roadside soils.Seven sampling sub-transects were designed to be perpendicular to the road within the sampling area of 150 m × 150 m covering both sides of the Highway.On each sub-transect,mixed topsoil samples (0 ～ 15 cm) were collected at 10 m intervals from the roadbed to the outside end.The total number of samples collected is 226 including two control samples.The concentrations of Pb,Cu,Ni,Cr,Cd and Zn in soils were detected by the inductively coupled plasma mass spectrometry (ICP-MS) according to the recommended standard method.The spatial distribution of heavy metal concentrations in roadside soils was characterized by applying Universal Kriging interpolation model.The results show that concentrations of all the six soil heavy metals varies significantly,and the mean concentrations of six heavy metals are much higher than that in control soils.The distribution of heavy metal concentrations are strips parallel to the highway stretching,which indicates that the six heavy metals in roadside soils are affected by the traffic.The concentrations of Cr and Cu decrease exponentially with the distance from the roadbed,and their highest values are found at the roadbed.However,the concentrations of other metals (Cd,Pb,Ni and Zn) reveal an asymmetrical distribution with the distance,which increase firstly,reach their highest values between 30 and 50 m away from the roadbed,then gradually decrease to the control values.The metals of Pb,Cu,Zn,Cd,Cr and Ni are all traffic-source related." @default.
- W2373915794 created "2016-06-24" @default.
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- W2373915794 date "2012-01-01" @default.
- W2373915794 modified "2023-09-23" @default.
- W2373915794 title "Spatial distribution of heavy metals in roadside soils based on Kriging interpolation:A case study of Zhengzhou-Kaifeng section along the 310～(th) national highway" @default.
- W2373915794 hasPublicationYear "2012" @default.
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