Article (Scientific journals)
Evaluation of Water Resources Quality in Sabodala Gold Mining Region and Its Surrounding Area (Senegal)
Mall, Ibrahima; Diaw, Moctar; Dieng, Ndeye Maguette et al.
2015In Journal of Water Resource and Protection, 7 (3), p. 247-263
Peer reviewed
 

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Keywords :
Geochemistry; Geostatistical; Crystalline Rock Aquifer; Pollution, Trace Elements, Sabodala, Senegal; Pollution; Sabadola; Trace Elements; Senegal
Abstract :
[en] Geochemical and Geostatistical tools were used to assess: 1) the chemical quality and, geochemical processes in crystalline rock aquifers in Sabodala (Eastern Senegal) and its surroundings and 2) the impact of mining activities on their quality. A total of 26 water samples collected at boreholes, dug wells and stream, were analyzed to determine major and trace elements concentration focused on elements that represent more threats on human health. Boxplots define chemical characteristics of water for each aquifer formation compared to surface waters. Geostatistical analysis show two sources of water mineralization with regard to major elements: a first natural source characterized by Ca-Mg-HCO3 water type from boreholes and unpolluted surface water and a second group characterized by polluted water by nitrates with Na-NO3-Cl type mainly observed in upper weathered aquifers. However, considering trace element, geostatistical analysis showed three water groups: water with very low trace element concentrations encountered in boreholes and unpolluted surface waters, and waters with relatively high trace element concentrations such as Al observed in areas affected by gold mining activities and finally, polluted waters by Ni, Co, Mn and Cr observed at Sabodala. Results show that in eastern Senegal well waters are vulnerable and often affected by pollution.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Mall, Ibrahima;  Université Cheikh Anta Diop de Dakar > Géologie > Hydrogéologie > Doctorat
Diaw, Moctar;  UCAD > Géologie > Hydrogéologie
Dieng, Ndeye Maguette ;  Université de Liège - ULiège > Doct. sc. ingé. (architecture, génie civ. & géol.)
Madioune, Héléne Diakher;  UCAD > Géologie > Hydrogéologie > docteur
Ngom, Papa Malick;  UCAD > Géologie > Hydrogéologie > enseignant- chercheur
Faye, Serigne;  UCAD > Géologie > Hydrogéologie > Professeur titulaire
Language :
English
Title :
Evaluation of Water Resources Quality in Sabodala Gold Mining Region and Its Surrounding Area (Senegal)
Publication date :
February 2015
Journal title :
Journal of Water Resource and Protection
ISSN :
1945-3094
eISSN :
1945-3108
Publisher :
Scientific Research Pub Inc, Herndon, United States - Virginia
Volume :
7
Issue :
3
Pages :
247-263
Peer reviewed :
Peer reviewed
Available on ORBi :
since 11 May 2015

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