Health Risk Assessment of Heavy Metals in Arable Soils

In order to assess the health risk of heavy metals in urban soils to the people, the health risks of heavy metals assessed based on the model of health risk assessment and a total of 98 soil samples were collected in Pingchang county. Cu, %n and Mn were analyzed by ICP-MS and ICP-OES respectively. The results indicated that the mean concentrations of Cu and Mn were higher than their mean values in Sichuan province; pH value and organic matter had negative and positive correlation with heavy metals concentration (p<;0.01); health hazard of individual person of three heavy metals is 1.065×10^-3 to adult, and 3.107×10^-3 to child; Mn contributed a lot to the non carcinogenic risk. It is suggested that the people may experience adverse health effects during his or her lifetime, and soils should be repaired.