The Semi-arid Middle Cheliff zone faces the deteriorating quality of the available water resource... more The Semi-arid Middle Cheliff zone faces the deteriorating quality of the available water resources. This study aims to evaluate the quality of these waters for drinking and irrigation purposes based on 12 well samples analyzed for their chemical components: Na + , K + , Ca 2+ , Mg 2+ , HCO 3-, Cl-, SO 4 2-, NO 3 ; and physical characteristics: pH, EC, TDS. Two common hydrochemical facies were identified by the analyses: sulfate-sodium and chloride-sodium. The water quality index indicated that most of the drinking water samples fell into the extremely low to non-potable category, while the Groundwater Quality Index for Irrigation (WQII) showed medium to very poor quality for most parts of the plain. Parameters including sodium adsorption ratio, sodium percentage, residual sodium carbonate, permeability index, Kelly ratio, potential salinity, and magnesium risk were evaluated for irrigation and drinking water usage that exceeded regulations. As a result, the study finds that there are health concerns associated with the drinking water and that remediation is required. Nonetheless, the fields in the area are not seriously threatened by irrigation water, except for delicate crops. The method was successful in evaluating groundwater quality for drinking water and irrigation.
The Semi-arid Middle Cheliff zone faces the deteriorating quality of the available water resource... more The Semi-arid Middle Cheliff zone faces the deteriorating quality of the available water resources. This study aims to evaluate the quality of these waters for drinking and irrigation purposes based on 12 well samples analyzed for their chemical components: Na + , K + , Ca 2+ , Mg 2+ , HCO 3-, Cl-, SO 4 2-, NO 3 ; and physical characteristics: pH, EC, TDS. Two common hydrochemical facies were identified by the analyses: sulfate-sodium and chloride-sodium. The water quality index indicated that most of the drinking water samples fell into the extremely low to non-potable category, while the Groundwater Quality Index for Irrigation (WQII) showed medium to very poor quality for most parts of the plain. Parameters including sodium adsorption ratio, sodium percentage, residual sodium carbonate, permeability index, Kelly ratio, potential salinity, and magnesium risk were evaluated for irrigation and drinking water usage that exceeded regulations. As a result, the study finds that there are health concerns associated with the drinking water and that remediation is required. Nonetheless, the fields in the area are not seriously threatened by irrigation water, except for delicate crops. The method was successful in evaluating groundwater quality for drinking water and irrigation.
Contamination due to rapid urban development, industrialization, and agricultural sources is incr... more Contamination due to rapid urban development, industrialization, and agricultural sources is increasingly threatening the groundwater resources of the plioquaternary phreatic aquifer of the Middle Western Cheliff. An intrinsic vulnerability assessment was carried out based on the DRASTIC method on parameters involved in the vertical transfer of pollution from the soil surface. The vulnerability maps obtained showed a high extension of areas of medium vulnerability (54%). On the other hand, areas of low vulnerability occupied about 36%. The high and very high vulnerability was mainly related to low water depth values (8% and 2%, respectively). The results of a sensitivity analysis using the two tests-the single parameter sensitivity analysis and the map removal sensitivity analysis-show that every parameter is, without fail, required for the computation of the vulnerability index. The validation of the vulnerability map produced by the DRASTIC method confirmed the evolution of this sensitivity which decreases towards the S.W. of the plain with nitrate concentrations between 30 and 120 mg/L. Planners can use the produced risk maps as tools to make a preliminary choice of priority locations for various forms of environmental sustainability.
The Semi-arid Middle Cheliff zone faces the deteriorating quality of the available water resource... more The Semi-arid Middle Cheliff zone faces the deteriorating quality of the available water resources. This study aims to evaluate the quality of these waters for drinking and irrigation purposes based on 12 well samples analyzed for their chemical components: Na + , K + , Ca 2+ , Mg 2+ , HCO 3-, Cl-, SO 4 2-, NO 3 ; and physical characteristics: pH, EC, TDS. Two common hydrochemical facies were identified by the analyses: sulfate-sodium and chloride-sodium. The water quality index indicated that most of the drinking water samples fell into the extremely low to non-potable category, while the Groundwater Quality Index for Irrigation (WQII) showed medium to very poor quality for most parts of the plain. Parameters including sodium adsorption ratio, sodium percentage, residual sodium carbonate, permeability index, Kelly ratio, potential salinity, and magnesium risk were evaluated for irrigation and drinking water usage that exceeded regulations. As a result, the study finds that there are health concerns associated with the drinking water and that remediation is required. Nonetheless, the fields in the area are not seriously threatened by irrigation water, except for delicate crops. The method was successful in evaluating groundwater quality for drinking water and irrigation.
The Semi-arid Middle Cheliff zone faces the deteriorating quality of the available water resource... more The Semi-arid Middle Cheliff zone faces the deteriorating quality of the available water resources. This study aims to evaluate the quality of these waters for drinking and irrigation purposes based on 12 well samples analyzed for their chemical components: Na + , K + , Ca 2+ , Mg 2+ , HCO 3-, Cl-, SO 4 2-, NO 3 ; and physical characteristics: pH, EC, TDS. Two common hydrochemical facies were identified by the analyses: sulfate-sodium and chloride-sodium. The water quality index indicated that most of the drinking water samples fell into the extremely low to non-potable category, while the Groundwater Quality Index for Irrigation (WQII) showed medium to very poor quality for most parts of the plain. Parameters including sodium adsorption ratio, sodium percentage, residual sodium carbonate, permeability index, Kelly ratio, potential salinity, and magnesium risk were evaluated for irrigation and drinking water usage that exceeded regulations. As a result, the study finds that there are health concerns associated with the drinking water and that remediation is required. Nonetheless, the fields in the area are not seriously threatened by irrigation water, except for delicate crops. The method was successful in evaluating groundwater quality for drinking water and irrigation.
Contamination due to rapid urban development, industrialization, and agricultural sources is incr... more Contamination due to rapid urban development, industrialization, and agricultural sources is increasingly threatening the groundwater resources of the plioquaternary phreatic aquifer of the Middle Western Cheliff. An intrinsic vulnerability assessment was carried out based on the DRASTIC method on parameters involved in the vertical transfer of pollution from the soil surface. The vulnerability maps obtained showed a high extension of areas of medium vulnerability (54%). On the other hand, areas of low vulnerability occupied about 36%. The high and very high vulnerability was mainly related to low water depth values (8% and 2%, respectively). The results of a sensitivity analysis using the two tests-the single parameter sensitivity analysis and the map removal sensitivity analysis-show that every parameter is, without fail, required for the computation of the vulnerability index. The validation of the vulnerability map produced by the DRASTIC method confirmed the evolution of this sensitivity which decreases towards the S.W. of the plain with nitrate concentrations between 30 and 120 mg/L. Planners can use the produced risk maps as tools to make a preliminary choice of priority locations for various forms of environmental sustainability.
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