Impact of effluent-derived heavy metals on the groundwater quality in Ajao industrial area, Nigeria: an assessment using entropy water quality index (EWQI)

Ukah, Bernadette Uche; Ameh, Peter D.; Egbueri, Johnbosco C.; Unigwe, Chinanu O.; UBIDO, OYEM EMMANUEL

doi:10.1007/s42108-020-00058-5

Cited by 72 publications

(15 citation statements)

References 40 publications

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“…The water quality index (WQI) is an effective method for determining the suitability of drinking water. However, its usefulness for evaluating groundwater quality is limited because the WQI does not consider the relative importance of each groundwater chemical parameter (Siddique et al, 2020;Ukah et al, 2020). By addressing the aforementioned constraint, the entropy-weighted water quality index (EWQI) surpasses the WQI and is computed as follows: (Liu et al, 2021;Wu et al, 2018):…”

Section: Evaluation Of Groundwater Qualitymentioning

confidence: 99%

Assessment of landfill groundwater quality and regulating factors: a case study of northern Sichuan

Liu,

Zhang,

et al. 2024

Preprint

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A total of 31 groundwater samples were obtained and analyzed in this research endeavor from a conventional rural landfill situated in the red-layer region of northern Sichuan. The Chemical characteristics, controlling factors and hydrogeochemical processes of the groundwater in the study area were elucidated through the application of multivariate statistical analysis and ionic ratio analysis. To predict the spreading range and concentration of the contaminants in the landfill, a groundwater flow model and a solute transport model were constructed using groundwater numerical simulation software. The Piper diagram revealed that the majority of the groundwater exhibited a chemical composition of HCO3-Na and SO4·Cl-Na, which is denoting neutral or weakly alkaline groundwater and belonged to the soft-fresh and hard-brackish water types, respectively. The concentrations of NH4-N in groundwater varied from 0.025 to 17.3 mg/L, with 51.61% of samples surpassing the limit of 0.5 mg/L established by the World Health Organization for drinking water. The groundwater chemistry in the studied area was primarily affected by cation exchange, human activities, and the weathering of carbonate rocks, according to the Gibbs plot, ionic ratio analysis, and SI calculations. According to the calculated weighted water quality index (EWQI), the majority of the groundwater quality indicators in the study area were classified as poor or very poor, with NH4-N concentration being the primary determinant. Numerical simulation results showed that the diffusion area of the NH4-N pollution plume in the horizontal plane along the direction of groundwater flow was 5618 m2, 10142 m2, and 11695 m2 for 1, 5, and 10 years of waste leachate leakage, respectively. In conclusion, the findings of this research offer a scientific basis for the remediation of groundwater attributable to the landfill situated in the red-layer region of northern Sichuan.

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Section: Evaluation Of Groundwater Qualitymentioning

confidence: 99%

Assessment of landfill groundwater quality and regulating factors: a case study of northern Sichuan

Liu,

Zhang,

et al. 2024

Preprint

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“…In Morocco, Kanga et al. (2020) found groundwater in the Sebou Basin, Northwest Morocco to be of poor quality, while several other studies have found varying levels of heavy metal concentrations in groundwater of other cities in Nigeria (Ukah et al., 2020) and Ethiopia (Fito et al, 2019). Anukwonke (2014) for instance, noted that groundwater closer to dumpsites in Nigeria was of poor quality, with unaccceptable pH levels while flooding was found to significantly affect the groundwater quality of hand‐dug wells in Monrovia, Liberia (Charles et al., 2020).…”

Section: Introductionmentioning

confidence: 99%

Empirical analysis of the impact of urbanization on groundwater quality within the slums of Accra, Ghana

Ketadzo¹,

Nkongolo

Akrofi

2021

World Water Policy

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A significant proportion of city dwellers in Ghana reside in slums where groundwater is the major source of water for domestic uses. This study examined the quality of groundwater from boreholes (seven) and hand‐dug wells (13) in five major slums in the city of Accra, Ghana. Water samples were tested for a total of 27 microbial and physicochemical contaminants at the central laboratory of the Ghana Water Company Limited. Overall, the water quality in the slums was poor as most of the parameters tested did not meet the 2017 WHO standards. Four out of the five slums (in Nima, Chorkor, Jamestown, and Abokobi‐Pantang), for instance, recorded high amounts of lead, with average values of 0.25 mg/L, 1.00 mg/L, 0.25 mg/L, and 1.5 mg/L, respectively, which are above the WHO standard of 0.01 mg/L. pH values in Nima (5.09), Sabon Zongo, Chorkor (6.09), and Abokobi‐Pantang (6.17) did not meet the WHO standard of 6.5–8.5. All five slums indicated various degrees of bacteriological contamination. The average Escherichia coli values per slum ranged between 12.50 CFU/100 ml and 249.00 CFU/100 ml, while the mean total coliform per slum ranged from 90.75 CFU/100 ml to 490.25 CFU/100 ml. The poor quality of groundwater found is attributable to improper disposal of waste, siting of boreholes/wells close to toilets, and the coastal location of some of the slums. Strict enforcement of water‐quality control checks, intensive sensitization on the dangers of improper waste disposal to groundwater quality, and the provision of sanitation facilities in the slums by city authorities are highly recommended.

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“…6,7 However, WQI has some limitations. According to Ukah et al 8 , WQI may not provide sufficient information regarding the true state of water quality. Also, the index may not meet the needs of many users 2 Environmental Health Insights of water quality data.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Groundwater Quality in the Asante Akyem Central District of Ghana

Owusu Sekyere,

Essandoh,

Wemegah

et al. 2023

Environ�Health�Insights

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Groundwater is the primary water supply source for many people living on the surface of the earth. They depend on this valuable resource for their daily needs. But this natural resource is continuously being threatened by both natural and anthropogenic activities. Therefore, continuous monitoring and assessment of the water quality of this resource is important to keep check of the effects of water contaminants especially on human health. This study assessed the levels of Fe, Cd, Mn, and Hg in hand-dug wells at 4 communities (Ahyiayem, Odumasi Zongo, Apeboaso, and Kwaakyewaso) in the Asante Akyem Central District of Ghana and evaluated its sources and potential health risk associated with their exposure. These communities are known for illegal small-scale mining. The analysis also included other water quality parameters such as pH, nitrate, potassium, sodium, total hardness, calcium hardness, Phosphate, chloride, and total dissolved solids. From the research, there was no carcinogenic health risk to the communities concerning Fe, Mn, and Hg through ingestion and dermal contact because the hazard quotients and health hazard indices recorded in both adults and children were below one (<1). However, from the research, Cd exhibited carcinogenic health risk because its Cancer risk (CR) index exceeded 10-6 for both adults and children. This implies that there is a risk of cancer infection from ingesting water from the hand-dug wells in the study areas. According to the analysis of the Water Quality Index (WQI), the wells at Ahyiayem, Apeboaso, and Kwaakyewaso recorded indexes that were between 15 and 50, signifying that the hand-dug wells in these communities are safe for human consumption. However, about 90% of the wells at Odumasi Zongo recorded WQI values that were between 80 and 320. This means the hand-dug wells at Odumasi Zongo are highly polluted and not safe for human consumption.

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Impact of effluent-derived heavy metals on the groundwater quality in Ajao industrial area, Nigeria: an assessment using entropy water quality index (EWQI)

Cited by 72 publications

References 40 publications

Assessment of landfill groundwater quality and regulating factors: a case study of northern Sichuan

Assessment of landfill groundwater quality and regulating factors: a case study of northern Sichuan

Empirical analysis of the impact of urbanization on groundwater quality within the slums of Accra, Ghana

Evaluating Groundwater Quality in the Asante Akyem Central District of Ghana

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