Preliminary Investigation and Study of the Soil Pollution Status of a Chemical Legacy Plot
Through data collection,on-site investigation and personnel interviews,the suspected polluted areas and pollution factors of the plot were identified,and an investigation plan was formulated,soil and groundwater samples were collected,and 137 soil indicators and 147 groundwater indicators were detected.The results showed that 1 1 pollutants,including heavy metals(arsenic,lead,mercury,copper,vanadium),ammonia nitrogen,fluoride,petroleum hydrocarbons(C10—C40),polycyclic aromatic hydrocarbons(benzo(a)anthracene,benzo(b)fluoranthene,benzo(a)pyrene),exceeded the first class risk screening value of the Soil Environmental Quality-Soil Pollution Risk Control Standards for Construction Land(Trial)(GB 36600-2018),and ammonia nitrogen and copper exceeded the Groundwater Quality Standards(GB/T).14848-2017)Class IV water standard limits.It is suggested that a detailed investigation of soil pollution status and health risk assessment should be carried out.
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