Empirical Study of the Groundwater Protection Potential and Water Quality Using the Electrical Resistivity Method and a PG990 Spectrometer Around Obafemi Awolowo University Dumpsite Southwestern Nigeria

Abstract

Groundwater plays a very important and fundamental part in human existence because of its essential role in living systems. The study aimed at carrying out an empirical study into groundwater protective potential and water quality around Obafemi Awolowo University solid waste facility and AbaGboro Community. This was achieved by using the electrical resistivity method to delineate the subsurface inhomogeneity around the dumpsite facility and also using the PG990 Atomic Absorption Spectrometer for metal analysis of water quality. The Schlumberger electrode array arrangement was engaged in the survey. A total of twelve vertical electrical soundings (VES) data was collected within the Obafemi Awolowo University dumpsite. The water samples were collected at two locations within the AbaGboro community which was 4.5 Km from the dumpsite to determine its quality. The results of the VES revealed the depth, resistivity, and thickness. The observed resistivity and the thickness values were further used in determining the groundwater protective potential, by calculating the Dar -Zarrouk parameters which showed that 91.7% of the study area is within poor/weak protective potential. The result from the water analysis of the hand-dug bore holes of the two different locations in the AbaGboro Community showed the presence of heavy metal concentrations as Pb, As, Mn, Cd, Zn, Cr and Co. Therefore, periodic assessment of water quality should always be carried out because we cannot anticipate when the groundwater will be contaminated due to relatively poor/weak groundwater protective potential.

Application of VLF-EM response and geoelectrical sounding in groundwater investigation around an active dumpsite

“…Furthermore, [2] reported that one of the fundamental alternatives for providing drinking and agricultural water is the exploitation of IOP Publishing doi:10.1088/1755-1315/1342/1/012021 2 groundwater. Following [3], groundwater availability study and use has grown in importance and value for geoscientists and researchers globally, particularly in environments with dumpsite facilities. However, [4] reported that a variety of population-driven socioeconomic development operations, waste production, and ineffective management continue to jeopardize water quality.…”

Assessment of Microbial Indicators of Water Resources in KooheHava and TangeKhoor Free Area

“…Lack of access of wildlife to healthy water resources is one of the most important extinction factors of biodiversity and wildlife population decline [2]. Utillization of natural water resources requires knowledge and periodic assessment of their quantity and quality [3,4] and the best way to manage springs is to support them against any activity led to reduce their quality [5].…”