Distribution of Cadmium in Isfahan Urban Area

Inorganic pollutants, heavy metals and trace elements such as nickel, cadmium, mercury, lead and copper was studied. Generally, heavy metal is a chemical element with a density higher than 5.5(g/mol). Cadmium is produced through the consumption of refined cadmium, copper and nickel smelting and fuel combustion. This project aimed to examine the distribution of cadmium in the urban areas of Isfahan Province and evaluate soil contamination and the effect of various factors in this regard. Traffic was studied in the City and 14 samples were taken from surface soil with a minimum distance of 750 m in an area of 10177 hectares and transferred to the laboratory. Then, using the standard methods of soil analysis parameters CEC, EC, pH and Cd were measured. The highest amount of cadmium was 10.5 (mg/kg) in Khorram Street and the lowest 1(mg/kg) in the three-way Hakim Nezamy and the average concentrations of cadmium was 3.7 (mg/kg). The sparsely populated areas and the residential areas between the two sides of the river namely Bozorgmehr Bridge and Nazhvan Bridge and Parvaz Square showed a very low contamination.