1Student Research Office, Department of Environmental Health, Health Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2B.Sc in Environmental Health Engineering, Tehran Province Water and Wastewater Company, Tehran, Iran
3Department of Environmental Health, Faculty Member of Health School, Iran University of Medical Sciences, Tehran, Iran
4Department of Environmental Health, School of Health, Isfahan University of Medical Sciences, Iran
5Student Research Committee, Sabzevar University of Medical Sciences, Sabzevar, Iran
6Department of Environmental Health Engineering, Faculty of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
7Environmental and Food Hygiene Laboratories (LIAA), ‘G.F. Ingrassia’ Department Hygiene and Public Health, University of Catania, Catania, Italy
8Msc of Water and wastewater, Environmental Engineering, Kurdistan Rural water and wastewater Co, Sanandaj, Iran
9Department of Health Public, Kermanshah University of Medical Sciences, Kermanshah, Iran
10Food and Cosmetic Health Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
*Corresponding Email: Ya.Fakhri@gmail.com.com
Online published on 29 September, 2018.
This study was conducted to determine the amount of heavy metals (Arsenic, Nickel, Mercury, and Lead) in drinking water resource of Kohgiluyeh County using Geographic Information System (GIS). This cross-sectional study was conducted on drinking water resource of Kohgiluyeh County (33 water supplies and 4 heavy metals) in 2013. 264 samples were analyzed in this study. The experiments were performed at the laboratory of Water and Wastewater Company based on Standard Method. The Atomic Adsorption was used to evaluate the amount of heavy metals. The results were mapping by Geographic Information System software (GIS 9.3) after processing of parameters. Finally, the data were analyzed by SPSS 16 and Excel 2007. The maximum amount of each heavy metal and its resource were shown as follow: Nickel or Ni (Source of w12, 124ppb), Arsenic or As (w33, 42 ppb), Mercury or Hg (w22 and w30, 96ppb), Lead or Pb (w21, 1553ppb). Also, the GIS maps showed that Lead in the central region was very high, Mercury and Arsenic in the northern region were high and Nickel in the eastern and western regions was high. The Kriging method and Gauss model were introduced as best method for interpolation of these metals. Since the concentration of these heavy metals was higher than standard levels in most drinking water supplies in Kohgiluyeh County and these high levels of heavy metals can cause the adverse effects on human health; therefore, the environmental and geological studies are necessary to identify the pollution resource and elimination and removal of heavy metals.
Arsenic, Nickel, Mercury, Lead, Drinking water, GIS
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