scholarly journals Assessment of Groundwater Quality and Hydrogeological Profiles within Odeda Local Government, Abeokuta, Southwest Nigeria

2021 ◽  
Vol 25 (5) ◽  
pp. 723-726
Author(s):  
K.A. Olatunde ◽  
M. Sanni ◽  
A. Omodayo ◽  
D. Odedeyi ◽  
J. Eze ◽  
...  
Keyword(s):  
Local Government ◽  
Groundwater Quality ◽  
Continuous Monitoring ◽  
Principal Component ◽  
E Coli ◽  
Ogun State ◽  
Standard Procedures ◽  
Southwest Nigeria ◽  
Range Of Values ◽  
Bacteriological Parameters

Groundwater quality can be affected by human activities such as agriculture and improper sewage disposal facilities currently in use by some homeowners within Odeda local government, Ogun State Nigeria. Sixty groundwatersamples collected from hand-dug wellswere analysed for physicochemical and bacteriological parameters using standard procedures. Results were integrated with multivariate and hydrogeochemical analyses to assess groundwater quality and hydrogeologycal facies within the study area. The range of values for the measured parameters include: pH (5.91 – 7.4), EC (101- 1142 μScm-1), TDS (50 - 581 mg L-1), NO3-(3 - 18 mg L-1), Cl- (25 – 234 mg L-1 ), BOD (0.1 – 17.9) and E. Coli (ND - 45×10cfu mL-1). The piper trilinear plot shows that the dominant hydrochemical facies in the study area is the Ca2+– Cl− type. A correlation analysis and a principal component analysis reflect dissolutions from basal rocks and contamination from biological wastes possibly arising from surrounding septic tanks or municipal waste disposal sites. There is need for a continuous monitoring of groundwater by relevant regulatory authorities to safeguard the human health and environment within the study area.

scholarly journals Effect of Modified Septic Tank on Groundwater Quality around Federal University of Agriculture, Abeokuta, South-west Nigeria

2020 ◽  
pp. 73-89
Author(s):  
Kofoworola Olatunde ◽  
Modupe Sarumi ◽  
Sadiq Abdulsalaam ◽  
Babatunde Bada ◽  
Funmilola Oyebanji
Keyword(s):  
Groundwater Quality ◽  
Major Ions ◽  
Principal Component ◽  
Septic Tank ◽  
E Coli ◽  
Septic Tanks ◽  
Management Measures ◽  
Standard Procedures ◽  
Groundwater Samples ◽  
Dug Wells

Groundwater forms a very important part of the water supply chain and its quality can be affected by improperly constructed septic tanks used by homeowners in peri-urban locations such as Abeokuta in recent times. Sixty groundwater samples collected from hand-dug wells ≤15m from septic tanks were analysed for physicochemical and bacteriological parameters using standard procedures. Results were integrated with multivariate and hydrogeochemical analyses to assess the effect improperly built septic tanks have on groundwater quality around the Federal University of Agriculture, Abeokuta. The range of values for the measured parameters include: pH (6.26 – 8.66), EC (83 – 1035 μS cm-1), TDS (42 – 621 mg L-1), Mg2+ (2 – 60 mg L-1), NO3- (5.09 – 17 mg L-1), Fe (-.04 – 5.32 mg L-1), BOD (0.1 – 13.2) and E. Coli (ND – 41×10 cfu mL-1). The abundance of major ions are in the order Ca2+˃Mg2+˃K+˃ Na+ and Cl- ˃SO42- >HCO3- >NO3- ˃PO42-. The piper trilinear plot shows that the dominant hydrochemical facies in the study area is the Ca2+–Cl- type. A correlation analysis and a principal component analysis both reflect intrusions from biological wastes such as surrounding septic tanks or municipal waste disposals as well as dissolutions from basal rocks. The possibility of infiltration from sewage into groundwater is confirmed by the number of samples with high BOD, NO3-, and E. coli concentrations. Contamination of groundwater with sewage exposes the populace to acute excreta-related illness. This therefore calls for stringent monitoring and management measures to be put in place by relevant regulatory authorities to safeguard the human health and environment within the study area.

scholarly journals Assessment of the Water Quality of Boreholes in Selected Areas in Benin City, Edo State, Nigeria

2019 ◽  
pp. 1-13 ◽  
Author(s):  
D. E. Ogbeifun ◽  
U. D. Archibong ◽  
I. E. Chiedu ◽  
E. E. Ikpe
Keyword(s):  
Water Quality ◽  
Local Government ◽  
Principal Component ◽  
Chemical Parameters ◽  
E Coli ◽  
Benin City ◽  
North East ◽  
Principal Component Analysis Result ◽  
Edo State

The water quality of selected boreholes in Oredo, Egor and Ovia North-East Local Government Areas in Benin City metropolis was assessed in terms of their physical, microbial and chemical parameters. A total of nine water samples (three per local government) were collected from randomly selected public boreholes in the month of July, 2018. The physicochemical parameters determined and values obtained are as follows: Electrical conductivity ranged 12.85 to 101.94 µS/cm, Temperature 25.00 to 25.01, pH of 4.32 to 5.55, TDS 0.67 to 4.00 mg/l, COD 3.20 to 16.00 mg/l, Turbidity 1.14 to 5.38FTU, Cl- 106.50 to 426.00 mg/l, SO42- 0.41 to 2.87 mg/l, TSS 0.33 to 1.67 mg/l, TS 1.33 to 4.33 mg/l, NO3- 23.73 to 41.48 mg/l, Mg 0.03 to 0.61mg/l, Ca 0.10 to 0.41 mg/l, HCO3- 7.00 to 22.00 mg/l, Na 0.20 to 7.75 mg/l, K 0.41 to 1.20 mg/l, Mn 0.01 to 0.11 mg/l, Fe 0.01 to 0.02 mg/l, Zn 0.01 to 0.65 mg/l, PO4- 0.07 mg/l for all locations, while some metals like Cd, Pb were not detected. Microbial evaluation was done on the samples to assess the level of E. coli, coliforms and bacteria. The principal component analysis result extracted two components each from the three LGAs; In Oredo LGA, Factor 1 accounted for 84.9% while Factor 2 accounts for 15.1%. In Egor LGA, Factor 1 accounts for 51.1% while Factor 2 accounts for 48.9%. In Ovia North-East LGA, Factor 1 accounted for 59.0% while Factor 2 accounts for 49.0% contributions.

scholarly journals Phenotypic Diversities of Four Populations of Clarias Gariepinus (Siluriformes, Clariidae) Obtained from Ogun and Ondo State Waterbodies in South-Western Nigeria

2017 ◽  
Vol 51 (4) ◽  
pp. 285-294
Author(s):  
F. A. Ola-Oladimeji ◽  
J. A. Oso ◽  
T. E. Oladimeji ◽  
E. O. Idowu ◽  
K. Adeleke ◽  
...  
Keyword(s):  
Multivariate Analyses ◽  
Clarias Gariepinus ◽  
Principal Component ◽  
African Catfish ◽  
High Genetic Diversity ◽  
Ogun State ◽  
Standard Procedures ◽  
Principal Component Analyses ◽  
Ondo State ◽  
Morphological Differences

Abstract The study determined the variation in the morphological and meristic features among four populations of Clarias gariepinus Burchell, 1822 obtained from Owena Dam and River Oluwa in Ondo State and Rivers Omo and Ogbere in Ogun State, both in Nigeria. A total of ninety five (95) and one hundred and twenty (120) fish specimens collected from Ondo and Ogun states respectively were measured using standard procedures and the results were analysed using Analysis of variance and multivariate analyses. The results obtained from the ANOVA and Principal Component Analyses of Clarias gariepinus from the four populations revealed heterogeneity for most of their characters. Therefore, the morphological differences between the wild African catfish found in Ondo and Ogun state populations could be linked to genetic differences or environmental factors or a combination of both factors. Hence, this study concluded that the populations are different which could imply high genetic diversity if molecular marker techniques are employed in further studies.

scholarly journals Hydro-chemical and microbial assessments of water resources around cassava mills in a sedimentary formation of Ilaro, Southwest Nigeria

2021 ◽  
Vol 11 (3) ◽  
Author(s):  
Akintayo O. Ojo ◽  
Opeyemi O. Ogunyinka ◽  
Oluwatoyin O. Daramola ◽  
Felix A. Olaoye
Keyword(s):  
Water Resources ◽  
Water Hardness ◽  
Total Coliform ◽  
E Coli ◽  
Ogun State ◽  
Low Concentrations ◽  
Significant Difference ◽  
Southwest Nigeria ◽  
Dug Wells ◽  
High Level

AbstractThe use of water resources from hand-dug wells, boreholes and streams around cassava processing mills within Ilaro metropolis, Ogun State Nigeria for domestic and industrial activities had led to the assessments of water resources in the vicinities of Ekueme, Olorungbogo, Double Crown, Olalandu and Akewe cassava mills. Eleven water samples were collected and taken to the laboratories for physiochemical, heavy metals and microbial analyses. The values obtained were compared with the WHO standards for drinking water. The pH (4.68–7.41) revealed acidic water with relatively low temperatures (24.7–29.2 ℃). The EC (79.80–221.00 mS/cm) indicated very high level of dissolved ionic salts, TU (0.200–0.684 mg/L) revealed the presence of particulate matters, and TH (15.10–22.70 mg/L) showed moderate water hardness. The anions NO3−, PO43− and Cl− concentrations indicated contaminations ranging from 65.42–110.80, 7.210–8.310 and 195.25–427.00 mg/L, respectively. Cations Na+, Ca2+ and Mg2+ had relatively low concentrations ranging from 14.49–20.96, 4.30–11.29 and 10.50–11.50 mg/L, respectively. The concentrations of Fe, Ni, Cd and Pb were high and ranged from 3.87–5.10, 1.27–2.82, 0.07–2.69 and 0.03–0.96 mg/L, respectively. The microbial counts in for total bacteria, fungi, E. coli and total coliform were also high ranging from 1.0–93.0, 0.1–1.3, 0.1–9.2 and 0.1–9.3 (106 CFU/ml), respectively. All these parameters indicated statistically significant difference between their concentrations at p = 0.000 and between the physiochemical and microbial results at p = 0.006. The qualities of the water resources around the study areas had been highly compromised and are not suitable for domestic activities.

scholarly journals An Assessment of Solid Waste Transportation in Ado-Odo/Ota Local Government Area, Ogun State, Nigeria

2020 ◽  
Vol 8 (2) ◽  
pp. 23-29
Author(s):  
Margaret Emem Ogunbiyi ◽  
◽  
Morakinyo Kehinde Onifade ◽  
Oluwaseyi Joseph Afolabi ◽  
Olufemi Adebayo Oroye
Keyword(s):  
Local Government ◽  
Waste Management ◽  
Solid Waste ◽  
Solid Waste Management ◽  
Item Analysis ◽  
Principal Component ◽  
Local Government Area ◽  
Transport Infrastructure ◽  
Ogun State ◽  
Management Staff

This paper examines solid waste transportation in Ado-Odo/Ota Local Government Area of Ogun State. Adequate transportation of solid waste is one of the major challenges of waste managers in Nigeria because of inherent factors ranging from dearth of transport infrastructure to poor attitude of residents. Data were collected through the aid of questionnaires, personal observations, visitations to some villages and towns as well as dumpsites. The questionnaires were divided into two parts: household respondents and solid waste management staff. The data obtained were analyzed using Descriptive Statistics, Factor Analysis and Item Analysis. From the analysis of the data obtained from household and waste management respondents the mean and standard deviation reflect high degree of correlation and concurrence. From the principal component analysis of both the household respondents and waste management staff, there are two principal factors respectively that should be given higher consideration in solid waste management in Ado-Odo/Ota Local Government Area. These factors include waste collection and disposal method, frequency of collection and reliability of waste vehicles. Based on these findings, the study concluded that attitudinal change on the part of the household, government intervention on road maintenances, and adequate maintenance of PSP vehicles will go a long way in reducing the heaps of refuse and indiscriminate dumping of solid wastes in the entire vicinity of Ado-Odo/Ota Local Government Area in Ogun State, Nigeria.

scholarly journals FOUR NEW EARTHWORM GENERA (ANNELIDA: OLIGOCHAETA) FROM NIGERIA

2016 ◽  
Vol 14 (1) ◽  
pp. 103-112
Author(s):  
A. A. ALADESIDA ◽  
S. O. OWA
Keyword(s):  
Local Government ◽  
New Taxa ◽  
Local Government Area ◽  
Sorting Method ◽  
Ogun State ◽  
South West ◽  
The Family ◽  
Southwest Nigeria ◽  
Left And Right ◽  
Hand Sorting

The taxonomy of earthworms in Nigeria has been mainly on the family Eudrilidae. The present work describes four new earthworm genera belonging to earthworm families other than the Eudrilidae. Earthworm samples were collected using the digging and hand-sorting method. The earthworms are preserved in formoacetic alcohol. The four taxa described here include Imekodrilus hexagastricus (family Moniligastridae), Adodrilus stephana (family Megascolecidae), Parnematogenia eyinwaensis and Ekitidrilus alabataensis(family Ocnerodrilidae). Imekodrilus hexagastricus from Imeko, Ogun State has six gizzards, characteristic of members of the family Moniligastridae. The genus Adodrilus is compared with 3 earthworm genera, Diporochaeta, Plutellus and Perionyx. The genus and species lacks gizzards. The calciferous glands (a pair) are present, with left and right united in segment X. Four individuals of P. eyinwaensis were collected from Eyinwa, Odogbolu Local Government Area of OgunState. The species is here described as having same position and number of calciferous glands, testes and male pores as the genus Nematogenia. Also described here is E. alabataensis, which was collected from both Ado-Ekiti and Alabata, south west Nigeria. These four genera and species are here presented as new taxa of earthworms from southwest Nigeria.ª¤?

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