Evaluation of Surface Soil Heavy Metal Pollution in City

doi:10.3969/j.issn.1006-2475.2019.08.019

Abstract

Abstract: Aiming at the current situation that heavy metal pollution destroies the soil environment, and directly or indirectly harms human health, an evaluation of surface soil heavy metal pollution in city based on projection pursuit and geostatistics is proposed. Firstly, eight heavy metals in a city soil are analyzed, the pollution index of the urban surface soil is obtained by using the projection pursuit model, and the overall pollution levels of soil heavy metals in different regions of the city are evaluated. Finally, the spatial distribution characteristics of heavy metals are studied by using geostatistics and GIS, the corresponding pollution assessment is given, and the quantitative analysis of the heavy metal pollution is carried on based on the influence factors, the position of pollution sources is determined. The research results are of some reference value for the study of the evolution of urban geological environment and the development of preventive measures.

Key words: heavy metal, geostatistics, projection pursuit, geographic information system

CLC Number:

TP181

DAI Yong-qiang， WANG Lian-guo. Evaluation of Surface Soil Heavy Metal Pollution in City[J]. Computer and Modernization, 2019, 0(08): 105-.

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