Geochemical assessment of groundwater contamination with special emphasis on fluoride concentration, North Jordan |
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Authors: | Y Abu Rukah Khaled Alsokhny |
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Affiliation: | a Departments of Earth and Environmental Sciences, Yarmouk University, Irbid, Jordanb UNESCO Chair for Dessert Studies and Desertification, Yarmouk University, Irbid, Jordan |
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Abstract: | The concentrations of fluorine in groundwater of North Jordan range from 0.009 to 0.055 mg/l. Other chemical parameters, e.g. pH, EC, TDS, Cl, TH, HCO3, PO4, SO4, NO3, NH4, K, Ca, Mg, and NO3 have been studied and showed higher concentrations in HCO3− and NO3− of 307 and 51 mg/l, respectively. Thermodynamic considerations show that almost all the analyzed samples are undersaturated with respect to calcite and fluorite. This undersaturation is probably due to their low availability in the locations. Fluoride concentration shows a positive relation to pH and HCO3, whereas Cl, Mg, Ca, and Na initially increase and then decrease with increasing fluoride in the water. Saturation indexes of fluorite and calcite are estimated. The chemistry of the groundwater is controlled by the fluorite and calcite solubility. The topography of the area has exerted control on the aerial extent of fluoride concentration. |
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Keywords: | Fluoride Groundwater Principal component analysis North Jordan |
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