Survey of environmental effects of Fe, As and Cd on the underground water sources of Tehran suburb villages for the use in artificial lakes of fish farming

A study was carried out to identify and measure concentration of elements including Fe, As, and Cd in Iran on the underground water sources of Shemiranat district in the northern Tehran in the fall of 1388. In this study flame and graphite furnace atomic absorption spectrometry (AAS), graphite stove furnaces were used. Seven sampling stations were determined based on geographical, climatic, physical, biological and chemical characteristics of this region. The results showed that the highest concentration of Fe was related to stations 1, 4 while the lowest concentration was observed at station 5. Concentration diagram indicated that the trend of Fe concentration was inconsistent and irregular. The stations 2 and 7 showed the highest and lowest concentration of As respectively. There was a descending trend for As concentration from station 1 to 5 had decrease and it had increase in station 6 and the last it had decrease concentration. The highest and lowest concentration of Cd was related to stations 1, 2, 3 and 5, 7 respectively.