A survey of the repository of groundwater potential and distribution using geoelectrical resistivity method in Itu Local Government Area (L.G.A), Akwa Ibom State, southern Nigeria

2013 ◽  
Vol 5 (4) ◽  
Author(s):  
J. Ibuot ◽  
G. Akpabio ◽  
N. George
Keyword(s):  
Local Government ◽  
Local Government Area ◽  
Least Square ◽  
Coarse Grained ◽  
Depth Range ◽  
Average Depth ◽  
Current Electrode ◽  
Wide Range ◽  
Southern Nigeria ◽  
Maximum Current

AbstractVertical electrical sounding (VES), employing a Schlumberger electrode configuration, was used to investigate the sediments and aquifer repositories in Itu Local Government Area of Akwa Ibom state, southern Nigeria. This was done in sixteen (16) locations/communities with the maximum current electrode spread ranging between 800–1000m. The field data were interpreted using forward and iterative least square inversion modeling, which gives a resolution with 3–5 geoelectric layers. The observed frequencies in curve types include 31.25% of AKH, 18.8% of AAK and HK and 6.25% of K, QHK, AKH, KA and KHQ, respectively. These sets of curves show a wide range of variabilities in resistivities between and within the layers penetrated by current. The presence of K and H curve types in the study area indicates the alteration of the geomaterials with limited hydrologic significance to the prolific groundwater repository. A correlation of the constrained nearby borehole lithology logs with the VES results shows that the layers were all sandy formations (fine and well sorted sands to gravelly sands or medium to coarse-grained sands as described by nearby lithology logs) with some wide ranges of electrical resistivity values and thicknesses caused by electrostratigraphic inhomogeneity. The geologic topsoil (motley topsoil) is generally porous and permeable and as such the longitudinal conductance (S) values for the covering/protective layer is generally less than unity of Siemens (S < 1Ω−1), the value considered for efficient protection of the underlying aquifers by the topmost and overlying layer. The spatial orientations and the leveling patterns of the most economically viable potential groundwater repository within the maximum current electrode separations has been delineated in 2-D and 3-D contoured maps. The estimated depth range for the desired groundwater repository is 32.6–113.1m and its average depth value is 74.30m. The thickness of this layer ranges from 27.9–103m while its average depth has been evaluated to be 63.02m. Also, its resistivity range and average value have been estimated to be 507–5612m and 3365.125Ωm

scholarly journals Resistivity Study of Shallow Aquifers in theParts of Southern Ukanafun Local Government Area, Akwa Ibom State, Nigeria

2010 ◽  
Vol 7 (3) ◽  
pp. 693-700 ◽  
Author(s):  
N. J. George ◽  
A. E. Akpan ◽  
I. B. Obot
Keyword(s):  
Local Government ◽  
Fine Sand ◽  
Local Government Area ◽  
Electrode Configuration ◽  
Coarse Grained ◽  
Shallow Aquifers ◽  
Resistivity Study ◽  
Southern Nigeria ◽  
Maximum Current ◽  
Electrical Sounding

A resistivity study by vertical electrical sounding (VES) employing the Schlumberger electrode configuration has been used to delineate shallow aquifers in some villages in SouthernUkanafunLocal Government Area of Akwa Ibom State, Southern Nigeria. The information realized from the resistivity data and nearby logged boreholes show that the depths penetrated by currents were all sandy formations with various thicknesses. However, the main aquifers comprise within the maximum current penetration, very coarse – grained (gravelly) sand and fine sand with resistivity in the ranges of 4680-30700 Ωm and 207-2530 Ωm and thickness in the ranges of 43-63 m and 18-40 m respectively. The aquifers with minor hydraulic gradient are separated by thin beds of clay according to lithology logs and these beds were masked in the sounding data due to the principle of suppression.

Surficial geophysical deduction of the geomaterial and aquifer distributions at Ngor-Okpala local government area of Imo State, South Eastern Nigeria

2011 ◽  
Vol 3 (4) ◽  
Author(s):  
Obianwu Victor ◽  
Chimezie Innocent ◽  
Akpan Anthony ◽  
George Jimmy
Keyword(s):  
Local Government ◽  
Groundwater Potential ◽  
Local Government Area ◽  
Coarse Grained ◽  
Depth Range ◽  
Borehole Data ◽  
River Sand ◽  
Soil Medium ◽  
Imo State ◽  
Electrical Sounding

AbstractTwenty seven vertical electrical sounding (VES) profiles surrounding four known traverses were obtained in Ngor-Okpala local government area of Imo state to examine the subsurface geomaterials and the associated groundwater potential. The VES data, constrained by borehole data, provided useful information about the subsurface hydrogeologic and lithologic conditions. From the validated interpretation, the area assessed has loamy soil, medium grained sands, well-sorted medium-grained/gravelly sands and river sand as the lithologic succession from top to the bottom of the depth penetrated. The aquifers in the area were found in the medium-grained sands and well-sorted medium-coarse-grained sands. The aquifer depth for all-season groundwater that would be devoid of draw-down can be found at a depth range of 42–50 m. The resistivity maps of selected depths exhibit sharp resistivity changes at depth due mainly to undulating subsurface topography. A map of the distribution of the kσ-values shows that good quality groundwater can be found in most parts of the area.

scholarly journals Efficiency of solid waste management methods in Karu Local Government Area, Nasarawa State, North Central, Nigeria

2020 ◽  
Vol 8 (2) ◽  
pp. 318-329
Author(s):  
Ademu Tanko Ogah ◽  
Mohammed Alkali ◽  
Obaje Daniel Opaluwa
Keyword(s):  
Local Government ◽  
Waste Management ◽  
Solid Waste ◽  
Solid Waste Management ◽  
Local Government Area ◽  
The Body ◽  
Systematic Sampling ◽  
Waste Collection ◽  
Wide Range ◽  
Household Heads

The efficiency of solid waste management in Karu Local Government Area, Nasarawa State was studied through the administration of questionnaires to heads of household using systematic sampling methods. The study covered a wide range of socio-economic and demographic variables from the households, such that income of household heads, household size, educational status of household heads, methods and frequency/efficiency of waste collection; waste bins by households and disposals facilities used as well as the role played by government in waste management in the study area were investigated. The study area was divided into Masaka, Karu and Mararaba communities. The results were largely based on the data generated through the administration of questionnaires. 300 copies of questionnaires were administered to household heads in the three areas selected, where Masaka area had 75; Karu area had 108 while Mararaba area had 117. It was deduced that solid waste generated in all the areas remained for days or weeks without been evacuated and containers used for waste collection are not adequate, majority of household heads in the three areas use either plastic or metal buckets to collect and disposed their waste at the locations designated containers for such are placed and also that the socio-economic characteristics varied in all the three areas. Furthermore, at 5% level of significance, H-calculated (as against Ho, efficient waste management) for the three communities were 0.178<5.99<9.21, and are all higher than 0.05 with the implication that solid waste management is not efficient in all the areas. It is therefore, recommended that Nasarawa State should as a matter of priority release more funds to the body that is responsible for management of wastes through Nasarawa State Berau of waste management, a unit under Nasarawa Urban Development Board to cope with the increasing volumes of wastes in the study area. This will help to reduce the high rate of the likelihood of outbreak of epidemic.

scholarly journals Infection Control Practices among Laboratory Healthcare Workers in an Urban Local Government Area of Lagos State, Nigeria

2021 ◽  
Vol 4 (2) ◽  
pp. 86-96
Author(s):  
Omobola Ojo ◽  
Adeyinka Adeniran ◽  
Olayinka Goodman ◽  
Bisola Adebayo ◽  
Esther Oluwole ◽  
...  
Keyword(s):  
Local Government ◽  
Infection Control ◽  
Personal Protective Equipment ◽  
Healthcare Workers ◽  
Local Government Area ◽  
Good Knowledge ◽  
Protective Equipment ◽  
Major Barrier ◽  
Limited Availability ◽  
Wide Range

Background: Laboratory healthcare workers do handle a wide range of potentially dangerous materials which exposes them to numerous hazards. This study aimed to assess the practices of laboratory health care workers towards safety, infection control and the associated factors to its practices. Case Presentation: A cross-sectional study was conducted among 181 laboratory healthcare workers in all registered 33 laboratory facilities in Ikeja Local Government Area in 2017. Data were collected with pre-tested, structured self-administered questionnaires. Data analysed with SPSS version 20 and p-value of < 0.05. The mean age of respondents was 35.0 ± 2.45 years, most of whom were females (57.7%) and married (61.1%). The majority (98.9%) demonstrated good knowledge of infection control. A total of 62.3% identified hand washing as the most important infection control practice while HIV and Tuberculosis were diseases respondents majorly considered as high risk of contracting. A total of 84.6% of the respondents showed good practices. Limited availability of personal protective equipment in the laboratories was a major barrier identified by 98.1% of respondents. Respondents displayed good knowledge, attitude and practice of infection control. Discussion and Conclusion: Barrier to infection control was the limited availability of personal protective equipment. Therefore, concerted efforts should be mustered to ensure continuous training and retraining with the provision of personal protective equipment.        

scholarly journals A Study of Superficial Sediments and Aquifers in Parts of Uyo Local Government Area, Akwa Ibom State, Southern Nigeria, Using Electrical Sounding Method

2010 ◽  
Vol 7 (3) ◽  
pp. 1018-1022 ◽  
Author(s):  
U. F. Evans ◽  
N. J. George ◽  
A. E. Akpan ◽  
I. B. Obot ◽  
A. N. Ikot
Keyword(s):  
Local Government ◽  
Local Government Area ◽  
Earth Surface ◽  
Resistivity Sounding ◽  
Subsurface Sediment ◽  
The Earth ◽  
Southern Nigeria ◽  
Electrical Sounding ◽  
Superficial Sediments

Resistivity sounding method using Schlumberger electrodes configuration was employed to investigate the goe-eletrical properties of the subsurface in parts of Uyo Local Government Area of Akwa Ibom State, Nigeria. Within the maximum electrode spread, the area studied show sandy beds with five layers of various thicknesses. The subsurface sediment harbours a thick aquifer buried in 20.0 m from the surface of the earth and it is exposed to earth surface at VES 13 and 14. The resistivity range for the aquifer layer is between 1,050 - 9,300 Ωm and thickness is above 80.0 m.

scholarly journals Geoelectric evaluation of groundwater potential: a case study at Omuma local government area, Rivers State, Nigeria

2020 ◽  
Vol 10 (8) ◽  
pp. 3255-3261
Author(s):  
M. E. Abbey ◽  
D. E. Onyebueke
Keyword(s):  
Local Government ◽  
Water Scarcity ◽  
Groundwater Potential ◽  
Local Government Area ◽  
Subsurface Water ◽  
Electrode Spacing ◽  
Average Depth ◽  
Subsurface Layers ◽  
Rivers State

Abstract Rivers State as the nomenclature depicts is a state richly blessed with both surface and subsurface water. As a result of this, there is less problem of water scarcity, especially in the elite cities of the state, but so many other communities due to one reason or the other still wallow in abject water scarcity. In this survey, a total of seven (7) vertical electric soundings were carried out using Schlumberger configuration at Obibi community in Omuma local government area, Rivers State, to ascertain the location and depths to aquifer. ABEM terrameter SAS 300 was used in the survey with electrode spacing AB/2 of 150 m, thus probing to a depth of about 200 m. Geoelectric software (IPI2WIN) was utilized in the plotting, iteration and interpretation of the resistivity data obtained. From the quantitative interpretation and the lithology of the areas, five different subsurface layers were delineated with their geoelectric curve given as AK, AKQ and AKH. Aquifer in these areas is highly prolific and mostly located at an average depth of 52 m.

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