Investigation of heavy metalloid pollutants in the south of Tehran using kriging method and HYDRUS model

Abstract Due to the high cost of large-scale measurement heavy metals, use statistical land models and techniques is one proper ways study their distribution level pollution. The area, agricultural lands south Tehran in Iran. Municipal wastewater often used for irrigation under surface method. To metals including copper, nickel, lead, ordinary kriging method GIS environment was used. In addition, one-dimensional HYDRUS modeling water flow soil simulated up a depth 50 cm 210 days concentration simulated. Distribution lead element with spherical model showed that its variation range 20–70 mg/kg. These values were 50–60 mg/kg copper 30 nickel. Investigation metal concentrations profiles using HYDRUS-1D major accumulation occurred layer at 0–15 higher than permissible level.