Affiliation:
1. Xi’an Universitu of Science and Technology
Abstract
Two roads (‘Nan Er huan’ abbreviated as R1,and ‘Huan Cheng Nan Lu’ abbreviated as R2) as the sampling area were selected based on Xi 'An traffic condition in China. Soil samples were randomly collected by triple sub sampling technique in each area and digested by mixed solution of FAAS and GFAAS according to the standard methods. The results show that total heavy metal contents of Cu, Cr, Pb and Cd in soil are 30.01±6.27 mg•kg-1、51.55±24.82 mg•kg-1、176.13±23.19 mg•kg-1and 2.73±1.93 mg•kg-1, and are 1.15, 0.73, 4.54, and 9.75 times of corresponding heavy metal soil background values in Xi 'an, China. The Nemerow composite index is 12.74, Geoaccumulation index of Cd, Pb, Cu and Cr are 2.7, 0.73, 0.38 and 1.04, Enrichment factors were:10 > Cd > Pb > Cu > Cr > 1. Surface soil is characterized by accumulation of the strength of the Pb, Cd, and Cu, Cr pollution is to a lesser degree.
Publisher
Trans Tech Publications, Ltd.
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