Investigation on Soil Benzene Series Pollution Characteristics of the Original Site of the Relocation Enterprise——A Case Study of a Relocated Chemical Plant
There are substances in the soil of the production enterprise that exceed the standard,and it is generally necessary to check the facilities and equipment and production activities after relocation.According to the land planning permission,for a relocated coking plant,the selection value of a class of land for construction land is se-lected to characterize the degree of excessive pollutants.The results showed that benzene and ethylbenzene in the soil exceeded the standard.Among them,the maximum exceeded times of benzene is 257 times.The maximum ex-ceeded times of ethylbenzene is 0.11 times,and the maximum concentration of benzene exceeds the control value,which usually has an unacceptable risk to human health.Therefore,risk control or repair measures should be taken.Through the analysis of site pollution characteristics,the benzene plane is planar pollution,and the vertical distribution of benzene is concentrated in the silty clay layer.The depth is about 4m,and the soil layer is impervi-ous.
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