Investigation and Risk Assessment of Soil Pollution in a Plot of Jiangsu Province
Take a polluted land in Jiangsu as an example.Detailed sampling survey and risk assessment were carried out on the basis of preliminary sampling survey.The results show that:The detection value of petroleum hydrocarbon(C10-C40)and benzo(a)pyrene in some soil samples exceeded the screening value of Class Ⅰ land in GB36600-2018.It is calculated by the risk assessment spreadsheet of contaminated land.The carcinogenic risk value of benzo(a)pyrene in the plot exceeds 10-6,The hazard quotient of petroleum hydrocarbon(C10-C40)exceeds 1,That is,the health risk of benzo(a)pyrene and petroleum hydrocarbon(C10-C40)in miscellaneous fill layer and silty clay layer is unacceptable.At the same time,The risk control value of benzo(a)pyrene in miscellaneous fill soil layer and silty clay layer is 0.549mg/kg,The risk control value of petroleum hydrocarbon(C10-C40)is 826mg/kg.
soil pollution status investigationrisk assessmentbenzo(a)pyrenepetroleum hydrocarbons(C10-C40)risk control value
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