Hydrochemical Assessment of Water Quality and Risks Related to the Use of Groundwater Resources in the Urban Area of Niamey and Nearby Rural Areas in the Regions of Dosso and Tillabery in Niger

International Journal of Environment and Climate Change, Journal Year: 2025, Volume and Issue: 15(1), P. 178 - 202

Published: Jan. 17, 2025

Groundwater continues to be useful as the main source of drinking water in semi-arid and arid regions sub-Saharan Africa. The goal this work is assess health risks associated consumption borehole urban peri-urban areas Niamey Niger. Hydrochemical analyses were carried out from samples 16 boreholes using standard methods (AFNOR). parameter measured are pH, Electric conductivity (EC), HCO3-, NO3-, NO2-, Cl-, SO42-, F-, Na+, K+, Ca2+, Mg2+, Fe2+ Mn2+. 80% very risky for populations. About 56% have a nitrate concentration < 30 mg/L 44% more than 50 corresponding limit set by WHO. High nitrite contents (NO2-) determined same contain 10 mg/L, considered unfit. Main causes lack good wastes managements, uncontrolled use fertilizers agricultural sectors. sites containing between 2 3 located lateritic soils. 12% Mn2+ above WHO (0.4 mg/L). This study few its close rural demonstrates that nitrate, manganese may cause major risks, particular gastric, cardiovascular, carcinogenic neurological diseases. With growing population urbanization, sanitation management waste, monitoring groundwater quality urgently need preserve human health. Regular, rapid less costly pH electrical waters can help prevent risk poisoning heavy metals such manganese.

Language: Английский

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Deciphering hydrogeochemical evolution in the multilayered Ilhas-São Sebastião Aquifer System, Brazil: Implications for groundwater resource management

Groundwater for Sustainable Development, Journal Year: 2024, Volume and Issue: 26, P. 101253 - 101253

Published: Aug. 1, 2024

Language: Английский

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Hydrochemical Evolution Process and Mechanism of Groundwater in the Hutuo River Alluvial Fan, North China

Water, Journal Year: 2024, Volume and Issue: 16(16), P. 2229 - 2229

Published: Aug. 7, 2024

Due to extensive groundwater exploitation, a funnel has persisted in the Hutuo River alluvial fan Shijiazhuang since 1980s, lasting nearly 40 years and significantly impacting chemical characteristics. In this study, based on level chemistry data, hydrochemical evolution processes mechanisms of during 1980 period post-2015 artificial governance were investigated using traditional hydrogeochemical methods inverse simulations. The results show following: (1) ion concentrations gradually increased along flow path, where they displayed pattern lower levels northwest higher southeast. From 2021, major ions increased. (2) type predominantly exhibited HCO3—Ca. 2015, types diversified into HCO3·Cl—Ca, HCO3—Ca·Mg, HCO3·SO4—Ca types. Following governance, rise led an increase SO42− Mg2+. Post-2015, prevailing changed HCO3·SO4—Ca·Mg. (3) changes quantitatively strongly correlated spatial similarity. (4) composition was primarily controlled by dissolution albite, dolomite, halite, quartz; reverse cation exchange; exploitation. Since mainly been influenced calcite, positive river–groundwater mixing; industrial activities, with increasing intensities both water–rock interactions human activities.

Language: Английский

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Prediction of Railway Embankment Slope Hydromechanical Properties under Bidirectional Water Level Fluctuations

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(8), P. 3402 - 3402

Published: April 17, 2024

Railway embankment slopes are exposed to natural hazards such as excess rainfall, floods, earthquakes, and lake water/groundwater level variations. These generally considered during the design, construction, maintenance periods of embankment. In this study, combined laboratory test methods a computational approach were applied assess effect groundwater changes on railway The Plackett–Burman (PBD), Box–Behnken design response surface methodology (BBD-RSM), an artificial neural network (ANN) used predict behavior soil hydromechanical properties determine integrity water fluctuates under varied seasonal conditions. results show that seepage line is concave rising (RWL) period, slope’s static stability factor surges then stabilizes. Further analysis found largely affected by some material, internal friction angle (ϕ), density (ρs), cohesion (c). second-order interaction factors c x s, s2 also affect factor. It was observed four most sensitive parameters both falling (FWL) RWL conditions ϕ, ρs, c, rate fall/rise in (H). statistical evaluation RSM model produced R2 values 0.99(99) 0.99, with MREs 0.01 0.24 FWL conditions, respectively, while for ANN, they 0.99(98), MRE 0.02 0.21, respectively. This study demonstrates ANN performed well these enhanced accuracy, efficiency, iterations, trial times, cost-effectiveness compared full experimental procedures.

Language: Английский

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Groundwater Quality and Vulnerability Assessment in the Nakivale Sub-catchment of the Transboundary Lake Victoria Basin, Uganda

Published: Oct. 21, 2024

This study evaluates groundwater quality in the Nakivale sub-catchment, focusing on inter-play of anthropogenic and geogenic influences. Hydrochemical analysis 19 sam-ples revealed that 90% comply with World Health Organization drinking water standards, alt-hough localized contamination concerns were noted, particularly total iron, nitrate magnesium. Groundwater index indicated over samples fall within good to excellent categories. Alignment levels elevated chloride-bromide ratios suggest human impacts, likely from agricultural runoff wastewater disposal. The irrigation assessment showed 94% possess low sodium, medium high salinity hazards, which could threaten crop productivity due increasing osmotic stress. Vulnerability assessments risks, attributed overlying impermeable geological features, steeply sloping landscape, slow recharge, depth aquifer clayey soil cover. findings underscore necessity for conjunctive management resources, incorporating strategies such as enhanced monitoring quality, public education sustainable practices, protective measures recharge zones. By addressing these concerns, aims safeguard resources both domestic agri-cultural purposes, ensuring long-term sustainability region.

Language: Английский

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Geochemical evolution and mechanisms controlling groundwater chemistry in the transboundary Komadugu–Yobe Basin, Lake Chad region: An integrated approach of chemometric analysis and geochemical modeling

Journal of Hydrology Regional Studies, Journal Year: 2024, Volume and Issue: 57, P. 102098 - 102098

Published: Dec. 2, 2024

Language: Английский

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Seasonal variation of groundwater quality in a basement complex geology of Ado Ekiti Nigeria using water quality index model

Journal of Umm Al-Qura University for Applied Sciences, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 4, 2024

Abstract Ado Ekiti is one of the Southwestern regions in Nigeria underlained with basement complex geology. Urbanization and growing population leading to increase various activities are dominant contributors groundwater pollutants area which affect hydrological system. The research aimed determine suitability for consumption domestic uses also provide information about quality bedrock lithologies using water index. Samples were taken from two major sources, boreholes wells, covering all study area's lithologies. number samples was based on spread individual rock charnockites having 15 samples, porphyritic 47 migmatite 37, undifferentiated granite least 5 samples. Analysis some parameters such as hydrogen ion concentration (pH), electrical conductivity (EC), Salinity, total dissolved solids (TDS), oxygen (Do) done situ standard equipment while other determined methods laboratory. results underwent descriptive statistical analysis mean, minimum, maximum, deviation, variance. variance result showed different interactions host groundwater. a little acidic majority types. mean values EC, TDS, DO, alkalinity, turbidity mostly within WHO acceptable limit except hardness (TH) recorded high almost revealed that calcium magnesium ions cationic species phosphate chloride anionic species. This indicates geogenic origin reflection dissolution underlying interaction. Water index gotten characterized into; excellent, very good, poor, unfit drinking. Differential weathering, influenced by differences mineralogical chemical composition, occurs each unit, localized occurrence variations chemistry geological formations. observed be poor types may attributed near ground protective capacity complex.

Language: Английский

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Investigation of Groundwater Recharge Mechanisms in the Transboundary Komadugu–Yobe Basin Nigeria Using Environmental Stable Isotopes of Δ18o and Δ2h and Comparison with the Wider Sahel, Africa

Published: Jan. 1, 2024

Language: Английский

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Assessment of Groundwater Quality and Vulnerability in the Nakivale Sub-Catchment of the Transboundary Lake Victoria Basin, Uganda

Water, Journal Year: 2024, Volume and Issue: 16(23), P. 3386 - 3386

Published: Nov. 25, 2024

This study evaluates the quality and vulnerability of groundwater within Nakivale Sub-catchment transboundary Lake Victoria Basin in Southwestern Uganda. Groundwater assessment focuses on its suitability for both drinking agricultural uses. Hydrochemical analysis 19 samples revealed that 90% comply with World Health Organization water standards, although localized contamination was noted, particularly terms total iron, nitrate, potassium, magnesium, sulfates. The index shows over fall good-to-excellent categories. Elevated nitrate levels chloride–bromide ratios indicate human impacts, likely due to runoff wastewater disposal. For irrigation, Sodium Adsorption Ratio medium-to-high salinity hazards region, while Percentage other parameters indicated low-to-moderate risks soil degradation. DRASTIC assessments identified low impermeable geological layers, steep terrain, slow recharge, deep aquifer depth, clayey cover. These findings emphasize need conjunctive resource management, including improved monitoring, public education sustainable practices, protective measures recharge zones areas highly susceptible contamination. By addressing these issues, this aims preserve resources domestic use, ensuring long-term sustainability region.

Language: Английский

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Hydrochemical and Isotopic Characterization of Groundwater in the Nakivale Sub-Catchment of the Transboundary Lake Victoria Basin, Uganda

Water, Journal Year: 2024, Volume and Issue: 16(23), P. 3394 - 3394

Published: Nov. 25, 2024

This study characterized groundwater resources for the Nakivale sub-catchment of transboundary Victoria Basin in Uganda using classical hydrochemical and stable isotopic approaches. Groundwater area is essential domestic, agricultural, industrial uses. As a sub-domain larger Basin, it also plays crucial role shaping hydrological characteristics this vital basin, both terms quality quantity fronts. makes its sustainable management development vital. The predominant type Ca-SO4, with other types including Ca-HCO3, Na-Cl, Na-HCO3, Ca-Mg-SO4-Cl. Hydrochemical facies analysis highlights importance rock–water interactions controlling chemistry, mainly through incongruent chemical weathering Ca-rich plagioclase feldspars oxidation sulfide minerals, such as pyrite, which are prevalent area. recharge primarily influenced by area’s topography, zones lineament networks, located elevated areas. Stable isotope analyses indicate that originates from local precipitation, while tritium data suggest presence recent older (likely over 20 years old). study’s comprehensive approach findings contribute significantly to understanding systems region, thus providing valuable insights policymakers stakeholders involved water resource strategies.

Language: Английский

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