Bioavailability of Some Heavy Metals in Selected Dumpsites in Ozoro, South-South, Nigeria

Ojebah, C. K.; Uwague, A

doi:10.22161/ijeab/3.3.43

Cited by 3 publications

(5 citation statements)

References 9 publications

(10 reference statements)

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“…Agbeshie [1] reported that the iron, cadmium and lead concentrations of soil samples collected from a dumpsite in Ghana, were higher than the concentrations recorded in the control soil sample. The differences observed in the soil heavy metals concentrations between our results and other studies results [1,20], could be attributed to the sampling period, to the age of the dumpsite, transport mechanisms, remediation potential of the natural vegetation, locations at which the soil samples were sampled and organic materials present in the sampling location. Studies [42][43][44] showed that many plant species and organic materials (microbial decomposition) have significantly impacts on the remediation of the heavy metals content in the soil, thus lowering the heavy metals accumulation in the soil.…”

Section: Heavy Metals Concentrationscontrasting

confidence: 91%

“…Additionally, the higher heavy metals concentrations recorded in this study compared to previous results of [20], signified that heavy metals is accumulating in the area at a faster rate, hence approaching its heavy metals contamination threshold. Therefore, there is an urgency of relocating it from its present location, since it is located within residential area, to prevent heavy metals related ailments.…”

Section: Heavy Metals Concentrationscontrasting

confidence: 42%

“…As seen in the results, none of the sampled locations was purely uncontaminated with the four heavy metals studied. This study had revealed that the contamination of the area is increasing and spreading rapidly across the dumpsite neighborhood, as against the localized results obtained b [20] in their previous research on the area three years ago. .…”

Section: Geoaccumulation Index (I Geo )mentioning

confidence: 45%

“…Heavy metals accumulation in soil and plants, were observed around active dumpsites within Ibadan metropolis of Oyo State, Nigeria [19]. Although Ojebah [20] studied the bioavailability of some heavy metals in selected dumpsites in Ozoro community of Delta State, but there was no thorough investigation on the impact of the dumpsites on their vicinity. Therefore there is scarcity of current information on the environmental impact (contamination degree) of this active dumpsite on it's environ.…”

Section: Introductionmentioning

confidence: 99%

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Evaluating the Contamination Degree and Risk Assessment of Heavy Metals Around Active Dumpsite Environment: A Case Study of Ozoro Community, Delta State, Nigeria

Ogbaran

Uguru

2021

PSIJ

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The use of lowlands for refuse collection point (dumpsite) is a very common practice in Nigeria. However, people cultivated the areas within the vicinity of the dumpsites, without knowledge of the risk of these heavy metals. Therefore, this study was done to evaluate the risk of heavy metals pollution of soils within the vicinity of an active dumpsite. Four (4) soil samples (from 4 locations) at a depth of 0–20 cm were collected from the vicinity of the dumpsite. The heavy metals (e.g. iron lead, nickel and cadmium) concentration of the collected soil samples were analyzed according to American Society for Testing and Materials (ASTM) International methods. Pollution indices (contamination factor, enrichment factor, pollution load index and geoaccumulation index) were used to ascertain the level of heavy metals contamination of the dumpsite area. Results obtained from the soil tests revealed that, the dumpsite area had high heavy metals concentrations. The heavy metals concentrations were of this ranged: iron 3420 mg kg-1 to 4323 mg kg-1, lead 28.92 mg kg-1 to 58.84 mg kg-1, nickel 2.89 mg kg-1 to 6.91 mg kg-1, and cadmium from 1.04 mg kg-1 to 2.05 mg kg-1. The heavy metals concentrations ranked as Fe > Pb > Ni > Cd. Pollution indices results showed that cadmium had the highest contamination factor, enrichment factor, pollution load index and geoaccumulation index values, which portrayed that the dumpsite soil was heavily contaminated with cadmium. Results of the correlation showed a strong correlation (r = 0.87) between iron and nickel, indicating that the two heavy metals got their pollution from the source(s). Results obtained from this study will further help the government and environmental regulators to plan and carried out suitable remediation strategies, to clean the environment.

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Section: Heavy Metals Concentrationscontrasting

confidence: 91%

Section: Heavy Metals Concentrationscontrasting

confidence: 42%

Section: Geoaccumulation Index (I Geo )mentioning

confidence: 45%

Section: Introductionmentioning

confidence: 99%

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Evaluating the Contamination Degree and Risk Assessment of Heavy Metals Around Active Dumpsite Environment: A Case Study of Ozoro Community, Delta State, Nigeria

Ogbaran

Uguru

2021

PSIJ

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“…Heavy metals bioavailability in soils to a great degree depends on their spread between the solid and solution phases (Wang b et al 2021; Xu et al, 2022). This spreading is sequentially reliant on the soil processes such as; specific adsorption, cation exchange, precipitation as well as complexation (Liu et al, 2018;Ojebah and Uwague, 2018;Petruzzelli et al, 2020). pH is commonly known to be the very significant factor affecting metal bioavailability in soils, with solubility and pH more often than not displaying an inverse correlation with metal bioavailability (Petruzzelli et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Calcined Calcium Carbide Waste (CCCW) in Mitigating the Leachability of Lead and Cadmium from Contaminated Soil from Evbareke Spare Parts Market Benin City Edo State Nigeria

Okponmwense¹,

Edogiawerie²

2023

dujopas

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Heavy metal contamination of soil can present dangers besides threats to humans as well as the ecosystem via uninterrupted intake or interaction with contaminated soil and the food chain. The purpose of this research is to examine the effectiveness of calcined calcium carbide waste (CCCW) in mitigating the leachability of lead and cadmium ions in contaminated soil from Evbareke spare parts market Benin City, Edo State Nigeria. Contaminated soil samples were collected using quadrant sampling method at the depth of 0-15cm with soil auger. The calcium carbide waste was obtained from a panel beating workshop dumpsite. The calcium carbide waste was dried to constant weight in an oven at 105oC. 50g of the dried calcium carbide waste (CCW) was crushed in a mortar to obtain a powdered form. The X-ray diffraction analysis for the CCCW revealed that it was made up of predominantly portlandite (47%), calcite fraction (23.0%), dolomite (12.7%), coesite (8.6%), muscovite (4.5%) and lime (4.0%), this was corroborated by FTIR analysis. SEM analysis revealed that CCCW possess a rough surface with pore of varied size and irregular shape. The contaminated soil from the Evbareke spare parts market was contaminated with petroleum hydrocarbons, the soil was saline with low C.E.C. The soil texture was loamy-sand. As the amount of CCCW amended increase in the soil, the amount of cadmium and lead ions that was releasable in the soil reduced. The cadmium and lead ions in contaminated soil was stabilized hence reducing the cadmium and lead availability in the soil. The optimum amender amount in the contaminated soil to immobilize lead ion was 4% w/w and ≥2% w/w for cadmium ion. The CCCW effectively mitigated the leachability of lead and cadmium

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Effect of different pH levels on adsorption and desorption of Pb in contrasting parent materials of south eastern agro climatic zone of Nigeria

S.U

E.E

et al. 2021

NJSS

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Lead adsorption and desorption at different pH levels in acid soils of diverse parent materials were evaluated. The soil samples were collected from soils underlain by olivine basalt (Ikom), coastal plain sands (Ihiagwa) and false bedded sandstone (Ishiagu). The collected samples were air -dried, crushed, sieved with a 2 mm sieve and analyzed in the laboratory. The adsorption of lead (Pb) increased with increasing solution pH. At pH 3, 4 and 6, the adsorption of Pb was higher in false bedded sandstone than the other soils. At pH 5, adsorption of Pb was higher in olivine basalt than the other soils. Except at pH 3, desorption of Pb was higher in coastal plain sands than the other soils. At the same time it was lower in false bedded sand stone than the other soils at all pH. At pH 5, adsorption of Pb had a significant positive correlation with organic matter (r =0.774481, p≤ 0.05), while at pH 6, it had a significant positive correlation with soil pH (r =0.738401, p ≤ 0.05). Organic matter and soil pH are the most critical soil properties affecting adsorption-desorption of Pb on these soils.

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Bioavailability of Some Heavy Metals in Selected Dumpsites in Ozoro, South-South, Nigeria

Abstract: Abstract-

Cited by 3 publications

References 9 publications

Evaluating the Contamination Degree and Risk Assessment of Heavy Metals Around Active Dumpsite Environment: A Case Study of Ozoro Community, Delta State, Nigeria

Evaluating the Contamination Degree and Risk Assessment of Heavy Metals Around Active Dumpsite Environment: A Case Study of Ozoro Community, Delta State, Nigeria

Effectiveness of Calcined Calcium Carbide Waste (CCCW) in Mitigating the Leachability of Lead and Cadmium from Contaminated Soil from Evbareke Spare Parts Market Benin City Edo State Nigeria

Effect of different pH levels on adsorption and desorption of Pb in contrasting parent materials of south eastern agro climatic zone of Nigeria

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