| Abstract |
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Water is a key source in food industrial and it's used in wide range with variety target. Therefore it is necessary to has knowledge of amount of parameters and quality changing. Aim of this study is assessment amount of some chemicals parameters like Fe, Zn, Cu, No2, Po4, Sio2, Cl and COD of Tehran drinking water in some region and what relation between them in deferent's geography Zone is. Samples selected from tree zone of Tehran in tree time steps. For measuring amount of pollution concentration used atomic adsorption spectrophotometer method for Zn, Fe and Cu metal, visible Spectroscopy for nitrite, phosphate, silica and chloride anions and Ultraviolet Spectroscopy for chemical oxygen demand. Results studied and compared with Iranian standard institute and World Health Organization (WHO) standard. The results showed that average concentration of Fe, Zn, Cu, No2, Po4, Sio2, Cl and COD respectively was 0.07, 0.02, 0.211, 41.39, 0.01, 0.05, 0.03 and 0.22 mg/liter that only concentration amount of COD had significant deference because of being more than maximum permission level according to Iranian standard institute and World Health Organization suggestion. This pollution might be leakage in network distribution of tap water or inadequate refinement in drinking water purification plant in that region. |
