Abstract：The feasibility of rapidly testing contaminated soils at refuse landfill as an example of Erfeishan in the skirt of Wuhan city, using soil resistivity and environmental magnetism methods, had been discussed, in terms of analytic techniques for contaminated soils, such as electric, magnetic and geochemical to study cross-section soil conductivity, the relationship between magnetic parameters and element content. Depth sounding with electromagnetic (EM) could give the vertical resistivity distribution image of soil cross-section, which indicated that the resistivity of polluted soils vary in stepped pattern, having obvious layered phenomenon. Resistivity method was capable of dividing the boundary of polluted area. Based on the characteristic of vertical resistivity distribution at cross-section, the environmental magnetism and heavy metal of the specimens sampled along the cross-section were analyzed, which shows that the magnetism parameters, resistivity value and heavy metals content have prominent accordance. The contaminated soils had the features of low resistivity, high susceptibility and increasing heavy metal content. Resistivity and susceptibility could all perfectly reflect the polluted degree in the area. Also from the thermal magnetism analytic curves, the polluted soils had more ferromagnetic minerals than non-polluted soils. So, both soil conductivity and magnetism had good response to soil polluted degree, which could replace the tedious conditional heavy metal testing methods.
郭高山, 李永涛, 张岩, 龙昌东. 垃圾填埋场污染土的电性与磁性响应研究[J]. 中国环境科学, 2015, 35(9): 2737-2744.
GUO Gao-Shan, LI Yong-Tao, ZHANG Yan, LONG Chang-Dong. The study of electric and magnetic response on polluted soil at waste landfill.. CHINA ENVIRONMENTAL SCIENCECE, 2015, 35(9): 2737-2744.