Volume 9, Number 1 (6-2016)                   ijhe 2016, 9(1): 103-114 | Back to browse issues page


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Sepehrnia B, Nabizadeh R, Mahvi A, Naseri S. Water Quality Analysis of Drinking Water Distribution Systems of Rey Township Using IWQIS Software. ijhe. 2016; 9 (1) :103-114
URL: http://ijhe.tums.ac.ir/article-1-5524-en.html

1- Master of science student in Environmental Health Engineering, Faculty of Health, Tehran University of Medical Sciences, Tehran, Iran
2- Professor in Department of Environmental Health Engineering, Faculty of Health, Tehran University of Medical Sciences, Tehran, Iran , rnabizadeh@tums.ac.ir
3- Center for Solid Waste Research (CSWR), Institute for Environment Research (IER), Tehran University of Medical Sciences, Tehran, Iran. Department of Environmental Health Engineering, Schools of Public Health, Tehran University of Medical Sciences, Tehran, Iran
4- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
Abstract:   (2915 Views)

Background and Objective: In this study, WQI was estimated using an Iranian software called IWQIS to assess drinking water quality in Ray Township distribution systems.

Materials and Methods: The assessment of 73 samples of drinking water during 2013 and the comparison of 18 physicochemical parameters with the standard Code of 1053 (Iran National Standard) was done.

Results: The results showed that the concentration of 7 parameters is out of normal range in special percentage of the samples. Those parameters are as follow: total hardness (31.5%), Mg (46.6%), nitrate (50.68%), Na (45.2%), F (42.46%), Cl (2.7%), Sulfate (28.76%) of samples. The medium concentration of theses parameters was: total hardness (375 mg/L), Mg (32 mg/L), Nitrate (47.43 mg/L), Na (187 mg/L), F (0.5 mg/L), Cl (169 mg/L), and Sulfate (263 mg/L). It is estimated that 5.6% of the population of this township are highly exposed to nitrate, 79.1% to fluoride and 13.5% are exposed to sodium. The average WQI in Rey Township in a good spectrum is 71.22.

Conclusion: 17 samples (23.2%) were assessed in excellent spectrum, 54 samples (74%) in good and 1 sample (1.4%) in very poor spectrum and 1 sample in unsuitable condition were assessed. No sample was assessed in poor situation. The samples of the autumn showed the worst quality.

Full-Text [PDF 1230 kb]   (2466 Downloads)    
Type of Study: Applicable | Subject: WATER
Received: 2015/08/20 | Accepted: 2016/01/10 | Published: 2016/06/6

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