Prediction of Spatial Distribution Trends of Heavy Metals in Abandoned Gangwon Mine Site by Geostatistical Technique

Su Na Kim, Woo Kyun Lee, Jeong Gyu Kim, Key Il Shin, Tae Hyub Kwon

This study was performed to evaluate the spatial distribution of heavy metals usingprincipal component analysis and Ordinary Kriging technique in the Gangwon M ine site. In the soils from the sub soil, the contents of Zn and Ni in the PC1 were gradually dispersed from south to north direction, while the components of Cd and Hg in the PC2 showed an increase significantly from m iddle-south area in the Gangwon M ine site. According to the cluster analysis, pollutant metals of As and Cu were presented a strong spatial autocorrelation structure in cluster D. The concentration of As was 0.83mg/kg and shown to increase from the south to north direction. The spatial distribution maps of the soil components using geostatistical method might be important in future soil remediation studies and help decision-makers assess the potential health risk affects of the abandoned mining sites.