Integrated Geophysical and Hydrogeochemical Characterization and Assessment of Groundwater Studies in Adum West Area of Benue State,Nigeria

Abstract

Integration of geophysical and hydrogeochemical methods has been scientifically proven to be useful in vulnerability study and groundwater characterization. Subsurface geoelectric parameters such as resistivity and thickness obtained from geophysical method (Vertical Electrical Sounding VES) was used to determine aquifers vulnerability, longitudinal resistance (ρL) and transverse unit resistance (Rt). Thirty four water samples were collected from groundwater sources for physicochemical analysis.Estimated results from longitudinal conductance (S), (Rt) and (ρL) showed that the values ranges from 0.03 to 2.5mhos, 103.64 to 1964417.8 Ω/m2 and 215.41 to 65731.68 Ω-m respectively. Result from S suggested that 50 % of groundwater is considered to be vulnerable to contamination from the earth surface, while the remaining 50 % is considered to be slightly vulnerable to surface contamination. Further findings obtained from hydrogeochemical analysis such as Gibb’s and Chadba plots revealed that groundwater is highly influenced by rock water interaction,groundwater is classified to be Na+ + HCO3¯, Ca2+ + Mg2++ HCO3¯ , Na+ + Cl¯ and Ca2+ + Mg2+ + Cl¯ water type. Deduction from Soltan classification suggested that groundwater is classified to be of Na+ ˗ HCO3¯ and Na+ ˗ SO4 2¯ water type. Results obtained from Ec and pH suggested that the values were below WHO permissible limit, while result obtained from TDS showed that at some sampling points TDS values were above WHO limit. Based on pH value obtained groundwater within the study area fell within slightly basic to acidic.

A Comparative Study of Groundwater between Geological Groups of Southern Benue Trough, Nigeria Using Modelling Approach

“…The deep confined aquifer system [25] . Although [26] believed that the shallow unconfined aquifer is Distributed under creative commons license 4.0 said to occur in fractured, weathered, jointed shale and some patched sandstone in the study area. Groundwater movement and storage within the study area are primarily influenced by thickness, lithology, and structure of rock formation.…”

Geophysical Investigation and Groundwater in Okpe and Its Surroundings, Niger Delta Region, Nigeria

“…The geoelectric approach is one of the most often utilized techniques for assessing groundwater potential due to its affordability and ease. The depth and hydraulic characteristics of the aquifer can be determined using this method together with other hydrologic techniques as borehole logging and pumping text (Eyankware et al, 2021). Groundwater is the main supply of water for domestic and other uses, according to previous researchers who have worked in Delta State.…”

Potential health risk and level of heavy metal in groundwater in the highly-dense area of Akure, Southwestern Nigeria

“…Understanding the origins, concentrations, and trends of heavy metals in surface and groundwater can help to create more sustainable worldwide environmental management strategies (Hui et al, 2014). Groundwater contamination has the property of being challenging to detect and eradicate (Eyankware et al, 2020;Eyankware et al, 2021c;Akakuru et al 2021a&b). In any case, the impact of human activities has brought groundwater pollution to a catastrophic level due to the rapid spread of urbanization, industrialization, and rural modernisation.…”