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Donnish Journal of Research in Environmental Studies

July 2015 Vol. 2(3), pp. 018-027

Copyright 2015 Donnish Journals




Original Research Article


An Investigation of the Chemical Quality of Groundwater Sources


Giti Kashi* and Fariba Khoshab

Department of Environmental Health, Faculty Health, Islamic Azad University, Tehran Medical Sciences Branch, Khaghani St, Shariati Ave, Tehran, Iran

Corresponding Author E-mail: g.kashi@yahoo.com

Accepted 4th May, 2015.



Abstract


The quality problems of groundwater sources had become more important than the quality of groundwater sources. The aim of this study is to investigate the chemical quality of groundwater sources for domestic purpose in Semnan city of Iran by using Aq.Qa software and compared with national standard. We examined the physicochemical quality fluctuations of 15 wells in Semnan during three seasons in the year of 2014. 13 physicochemical parameters of drinking water were calcium, chloride, conductivity (EC), magnesium, permanent hardness, pH, residual chlorine, sulfate, temperature, total alkalinity, total dissolved solid (TDS), total hardness (TH), and turbidity. We compared the results with national standard values of drinking water and drew the chemical diagrams of water with the Aq.QA software. We applied the stiff diagram, ion balance, piper diagram, and schoeller diagram, for determining the water type, anionic-cationic balance, chemical characteristics of water and mean concentration of water parameters, respectively. Water type was calcium sulfate, in 11% of samples. The TDS range of 45 samples was 185-1100 mg/l (fresh and slightly saline level). The pH range of well water samples was the basic in summer. The Temperature range of 45 samples was 12-23 C. The EC range of well water samples in spring was higher than the well water samples in summer and fall. The TH range of 45 samples was 720-1600 mg/l (CaCO3) (hard and very hard level). The TH range of well water samples in spring was higher than the well water samples in summer and fall.

Keywords: Aq.QA, Semnan, Total dissolved Hardness, Water quality, Well water.

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Cite This Article:

Giti Kashi and Fariba Khoshab. An Investigation of the Chemical Quality of Groundwater Sources. Donnish Journal of Research in Environmental Studies 2(3) 2015 pp. 018-027.


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