| Taking a legacy industrial site in a town in central Jiangsu province as the study area, the content of polycyclic aromatic hydrocarbons（PAHs）, organic chlorine pesticides (OCPs), total petroleum hydrocarbon （TPH）and heavy metals in 23 soil samples were detected, and their risks were assessed. The results showed that 18 detected organics in soil did not exceed the standard. The maximum value of zinc and total chromium both exceeded the screening values of residential and public land in Zhejiang. The rest of heavy metals did not exceed the standard. According to risk assessment, the carcinogenic risk of Cd in the first and second type of land use were 2.70×10-8 and 1.42×10-8, respectively, both were below the acceptable carcinogenic risk of 10-6. The hazard quotient range of Cd, Cu, Hg, Zn in the first and second type of land use were 0.023～0.542 and 0.006～0.060, respectively, both were less than the acceptable non carcinogenic hazard quotient of 1. The risk values of Cd， Cu， Hg， Zn were all in the acceptable range. |
