Evaluation of heavy metals concentration in the drinking water distribution network in Kurdistan villages in the year 2012
Seyyed Jamal Aldin Ebrahimi
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Prevalence of toxic chemicals in drinking water could have a negative impact on human health causing cancer and other chronic diseases. The aim of this study was to measure concentrations of heavy metals, mercury, arsenic, chromium and lead in drinking water in rural households of Kurdistan, Iran to identify possible threats posed by high levels of heavy metal concentration. Kurdistan province of Iran is located in western Iran. It has 10 cities including Sanandaj, Saghez, Bane, Marivan, Ghorveh, Bijar, Kamyaran, Diwandareh, Sarouabad and Dehgolan. Drinking water supply comes from groundwater in these rural areas. Due to lack of information on the chemical state of drinking water in rural areas of Kurdistan, to identify the presence of heavy metals and their concentration during spring 2012, 84 water samples were randomly collected to measure concentrations of heavy metals like chromium, cadmium, lead and mercury. Then the samples were taken from water taps of rural households and transferred to the laboratory in 500 ml bottles. Samples were analyzed using the method presented in standard books in Chemical Water and Wastewater Reference Laboratory of Hamedan Health departments affiliated to Hamedan University of Medical Sciences using Polarograph Manufacturing at Metrohm, Switzerland. Continuous monitoring of supplier networks plumbing and water storage tanks to identify sources of pollution with heavy metals should be part of a routine job in related organs.