Groundwater quality assessment in southern parts of Tehran plain,Iran |
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| Authors: | T Nasrabadi P Abbasi Maedeh |
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| Institution: | 1. Graduate Faculty of Environment, University of Tehran, #23, Azin Avenue, Ghods Street, Enghelab Square, 1417853111, Tehran, Iran
2. Department of Civil-Environmental Engineering, University of Tehran, International Aras Campus, #23, Azin Avenue, Ghods Street, Enghelab Square, 1417853111, Tehran, Iran
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| Abstract: | The hydrochemical characteristics of groundwater in the southern parts of Tehran Province are considered. Twenty-three sampling stations were selected and major anions/cations, electrical conductivity and pH were detected. Sulfate and chloride were found as major anions, while no specific dominant cation was determined. More than half of the samples were found to be unsuitable for drinking purposes, due to high concentrations of anions/cations. Regarding agricultural use, almost all samples were classified as having high-risk levels of salinity, while for alkali hazard considerable risks were observed in most cases. Generally, an increasing trend of salinity is observed from northwest to southeast of the study area. Such increase may be justified by the adjacency of the Iran central desert and salt lake to the southern boundaries of the study area. Extended use of sulfate-containing fertilizers may also play a key role in justifying the high sulfate concentration in comparison to other anions. |
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