Groundwater geochemistry in the Meshkinshahr basin of Ardabil province in Iran |
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| Authors: | Kaveh Pazand Ardeshir Hezarkhani Yousef Ghanbari and Nasrin Aghavali |
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| Institution: | (1) Department of Sciences, Science and Research Branch, Islamic Azad University, Hesarak Blvd, Poonak Sq., Tehran, Iran;(2) Department of Mining, Metallurgy and Petroleum Engineering, Amirkabir University, Hafez Ave. No. 424, Tehran, Iran |
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| Abstract: | The chemical analysis of 59 water wells in Meshkinshar area, Ardabil province NW of IRAN has been evaluated to determine the
hydrogeochemical processes and ion concentration background in the region. The dominated hydrochemical types are Na–SO4, Ca–HCO3, Na–HCO3 and Na–Cl in the whole area. Based on the total hardness, the groundwater is soft. According to electrical conductivity and
sodium adsorption ratio, the most dominant classes are C1–S1, C2–S1 and C3–S1. The major ion concentrations are below the
acceptable level for drinking water. The groundwater salinity hazard is medium to high but the Na hazard is low to medium
and in regard of irrigation water the quality is low to medium. So the drainage system is necessary to avoid the increase
of toxic salt concentrations. |
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