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To study the migration and variation rule of petroleum pollutants in soil and evaluate the soil condition, the field investigation is carried out in a refinery in Yunnan Province and the relevant data are collected. Then, soil sampling and leaching experiments are carried out on the land in the refinery. Finally, the experimental data are sorted out. The experimental results show that the pollution of surface soil in refinery is the most serious. Because of the adsorb-ability of the soil, the content of petroleum pollutants in the deep soil is less. The results of leaching experiments show that the diffusion process of petroleum pollutants is greatly affected by random factors in horizontal diffusion. In the vertical direction, the depth of soil will reduce the diffusion speed of petroleum pollutants. This exploration provides a reference for the study of the migration and variation rule of petroleum pollutants in soil.

Study on migration and change of petroleum pollutants in soil and pollution evaluation with data mining technology