Hydrogeochemical and isotopic controls on the source of fluoride in groundwater within the Vea catchment, northeastern Ghana

Basit Öğe Kaydı
dc.authoridSunkari, Emmanuel Daanoba/0000-0002-0898-2286
dc.authoridGibriila, Abass/0000-0001-8126-0696
dc.contributor.authorZango, Musah Saeed
dc.contributor.authorPelig-Ba, Kenneth Bayetimani
dc.contributor.authorAnim-Gyampo, Maxwell
dc.contributor.authorGibrilla, Abass
dc.contributor.authorSunkari, Emmanuel Daanoba
dc.date.accessioned2024-11-07T13:32:16Z
dc.date.available2024-11-07T13:32:16Z
dc.date.issued2021
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractGroundwater consumption is considered as a major exposure route to fluoride in humans. Therefore, this study unraveled the sources and sinks of groundwater fluoride in the Vea catchment of northeastern Ghana using an integration of litho-petrography, hydrogeochemical analysis, multivariate statistical analysis, and stable isotope analysis. In this regard, 70 groundwater samples were collected from boreholes and analyzed for major ions and stable isotopes using standard procedures whilst 10 rock samples were collected from the crystalline basement rocks of the Birimian Supergroup and used for the petrographic studies. The petrographic results revealed the dominance of quartz, microcline, plagioclase (albite), biotite, muscovite and hornblende in the lithological units. The order of dominance of fluoride in the various lithologies is K-feldspar-rich granitoid > hornblende-biotite granitoid > basaltic flow > hornblende-biotite tonalite > hornblende biotite granodiorite > biotite granitoid. The groundwater fluoride concentrations varied from 0.35 to 3.95 mg/L with a mean concentration of 1.68 mg/L. Almost 61% of the samples have fluoride concentrations above the World Health Organization's maximum permissible limit of 1.5 mg/L. Groundwater is supersaturated with respect to albite due to silicate weathering and undersaturated with respect to fluorite and calcite. This enhanced ion exchange and fluoride mobilization in the groundwater from progressive calcite precipitation. The fluoride concentrations show positive correlations with Na+, Mg2+, HCO3-, and SO42-, confirming that fluoride enrichment is due to silicate weathering and ion exchange reactions. The delta O-18 and delta H-2 values with respect to V-SMOW vary between -4.15 and -2.75 parts per thousand and -22.49 and -13.74 parts per thousand, respectively suggesting considerable isotopic variation of the groundwater. Enriched isotopic composition is observed with low fluoride concentration whilst depleted isotopic composition is observed with a higher concentration of fluoride in groundwater. The stable isotopic compositions of the groundwater also indicated meteoric origin with an evaporative effect, which partly influences the groundwater chemistry.
dc.description.sponsorshipEarth Science department of the Faculty of Earth and Environmental Sciences, CK Tedam University of Technology and Applied Sciences, Ghana
dc.description.sponsorshipMusah Saeed Zango and Maxwell Anim-Gyampo acknowledge the support of the Earth Science department of the Faculty of Earth and Environmental Sciences, CK Tedam University of Technology and Applied Sciences, Ghana for logistics support during the field mapping and water sample collection. The Editors and anonymous Reviewers are acknowledged for their valuable comments that improved the quality of the paper.
dc.identifier.doi10.1016/j.gsd.2020.100526
dc.identifier.issn2352-801X
dc.identifier.scopus2-s2.0-85097369110
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.gsd.2020.100526
dc.identifier.urihttps://hdl.handle.net/11480/15329
dc.identifier.volume12
dc.identifier.wosWOS:000694847500040
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofGroundwater For Sustainable Development
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectGroundwater
dc.subjectFluoride contamination
dc.subjectStable isotopes
dc.subjectVea catchment
dc.subjectGhana
dc.titleHydrogeochemical and isotopic controls on the source of fluoride in groundwater within the Vea catchment, northeastern Ghana
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu