Hydrochemical evaluation of Lower Niger Drainage Area, southeastern Nigeria

Okolo, C. M.; Akudinobi, B. E. B.; Obiadi, I. I.; Onuigbo, E. N.; Obasi, P. N.

doi:10.1007/s13201-018-0852-1

Cited by 10 publications

(9 citation statements)

References 11 publications

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“…Another source could be from agricultural activities especially fertilizers and herbicides used in the farms and fishery. Previous studies in Imo Shale and Nanka Formation recorded high concentration of the trace elements especially iron (Okolo et al, 2018;Ezeabasli et al, 2014) hence, linking them to geology. The presence of these trace elements is a serious source of concern as the populace in the area drink the water directly without treatment.…”

Section: Characterisation Of Water Quality Parametersmentioning

confidence: 80%

“…It occurs in several ways and affects many spheres of the environment most importantly the water sources. The deterioration of surface water and groundwater qualities has been attributed to both natural processes and anthropogenic activities (Yan et al, 2015, Okolo et al, 2018, Udoh et al, 2021. These dissolved constituents in water may affect soil fertility.…”

Section: Introductionmentioning

confidence: 99%

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Hydrogeological and water quality evaluation of parts of River Mamu Sub-Basin, Southeastern Nigeria

Anakwuba¹,

Okolo²,

Chibuzor³

et al. 2021

Bulletin of the Mineral Research and Exploration

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The water sources in parts of the River Mamu sub-Basin, southeastern Nigeria were evaluated for domestic and agricultural purposes using hydrogeology and water quality. Thirty water samples from both surface water and groundwater were collected and analysed for hydrochemical and biological parameters. The average depth to aquifers and their thicknesses are 109.9 and 11.8m respectively. The concentration of the major ions, TDS and EC are within the WHO permissible guidelines for drinking water. Heavy metals concentration range in mg/L for Cd 2+ (0 -0.06), Cr 3+ (0 -0.19), Hg 2+ (0 -1.0), As 3+ (0 -0.14) and total Fe (0 -2.4) which in some of the samples exceed the permissible guideline values. The fecal coliform range in 100ml/L of samples (0 -36) exceeds the guideline values in some of the samples. The water is Ca-Mg -Cl-SO 4 type with the dominant ions as Ca 2+ and SO 4 2for both groundwater and surface water. The dominant geochemical processes are rockwater interaction in groundwater, which is a major contributor of dissolved ions and precipitation in the surface water. The WQI (17.84-301.99) connotes some samples are of very poor quality for domestic purposes. Irrigation indices depict most of the water as good to excellent for agriculture.

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Section: Characterisation Of Water Quality Parametersmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Hydrogeological and water quality evaluation of parts of River Mamu Sub-Basin, Southeastern Nigeria

Anakwuba¹,

Okolo²,

Chibuzor³

et al. 2021

Bulletin of the Mineral Research and Exploration

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“…The obtained values for chloride were within the permissible limit except for sample R/NWA/4 which was observed to be above the limit in the dry season. Thus, chloride values were observed to be higher in the dry season and this can be attributed to sewage disposal and other anthropogenic activities [27]. Sulphate values range between 41.234 and 75.761 mg/l in both seasons while carbonate values varies between12 and 46 mg/l in wet season and 8 and 30 mg/l in dry seasons.…”

Section: Chemical Parametersmentioning

confidence: 95%

“…Due to its metropolitan nature, there is an increase in industrial and human activities coupled with environmental degradation and indiscriminate refuse disposal. The cottage industries (like the paints, insecticides, agrochemicals) and other commercial businesses in this area, empty their waste into drains, with the aim of emptying them into the River Niger [4,5]. The high volume of these activities poses a threat to the various water sources in the area.…”

Section: Introductionmentioning

confidence: 99%

Seasonal Variation in Physicochemical Properties of Water in Onitsha Metropolis, Southeastern, Nigeria

Okolo C. M.,

Onuorah I. D.,

Madu F. M.

2023

AJEE

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The study area is a metropolitan city with major markets and industries in the heart of Anambra State, Nigeria. A total of thirty (30) samples was collected over two seasons and were analysed for various physicochemical parameters. The result was used to evaluate the seasonal variation in the various water parameters. The results show that there were no significant seasonal variations in the concentration values of pH, EC, NO3, CO3, SO4, Pb and TDS. However, seasonal variations were observed in the concentrations of Mg, Ca, Cl, Mn, Hg, Na, Cd. Cu, Ni and Ag. The concentrations of the physical parameters, the major cations and anions and some of the heavy metals were within the permissible limit of the WHO standard. Furthermore, the concentrations for turbidity, mercury and cadmium in some of the water samples were above the permissible limits in both seasons. The water quality index (WQI) categorized the samples as good, poor, very poor and unfit for consumption while heavy metal pollution index (HPI) classified the water as poor to very poor. The WQI and HPI are season dependent and these ratings indicated that the water sources are heavily contaminated, and should be properly treated before drinking.

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“…Rocks and sediments contain contaminants, solutes and groundwater flowing through them dissolves these substances thus changing the chemistry of groundwater repositories. Groundwater suitability depends on the hydrogeochemical properties and susceptibility of the aquifer layers to pollution (Wang et al 2010;Okolo et al 2018;Ekanem et al 2020). Also, the aquifer susceptibility depends on porosity, permeability and overburden thickness of geologic formation (George et al 2014;Obiora et al 2015;Ibuot et al 2017;Oni et al 2017;Ibe et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Hydrogeochemical assessment of groundwater quality: a case study of Federal College of Education (Technical), Omoku, Rivers State

Okoroh

Ibuot

2022

Water Practice and Technology

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This study was carried out to assess the suitability of groundwater for drinking and irrigation purposes by interpreting the hydrochemical species of groundwater samples. Six water samples were collected and assess to determine the concentration of some ions, pollution load index (PLI), contamination factor (CF), water quality index (WQI), sodium adsorption ratio (SAR), magnesium hazard (MH), Kelly ratio (KR), and percentage sodium (%Na). The result revealed that most of the ions have concentration within the WHO permissible limit for drinking water except the biological oxygen demand (BOD), chemical oxygen demand (COD), and which exceeded WHO standard in some samples. The mean abundant of the cations is , while that of the anions is . The result reveals that and the most abundance cation and anion respectively. CF reveals low concentration (<1) of , , , , and high concentration (>1) of . The values of PLI were very low indicating no pollution. The WQI reveals the samples with excellent (<50) while those above 100 (>100) were rated as poor. The SAR, MH, KR, and %Na reveal the groundwater status for irrigation based on the ratings of the indices.

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Hydrochemical evaluation of Lower Niger Drainage Area, southeastern Nigeria

Cited by 10 publications

References 11 publications

Hydrogeological and water quality evaluation of parts of River Mamu Sub-Basin, Southeastern Nigeria

Hydrogeological and water quality evaluation of parts of River Mamu Sub-Basin, Southeastern Nigeria

Seasonal Variation in Physicochemical Properties of Water in Onitsha Metropolis, Southeastern, Nigeria

Hydrogeochemical assessment of groundwater quality: a case study of Federal College of Education (Technical), Omoku, Rivers State

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