Assessment of metal contamination in sediment from Woji Creek, Niger Delta Region of Nigeria

Ibezim-Ezeani, Millicent Uzoamaka; Dibofori-Orji, Amalo Ndu; Udo, Kufre Solomon; Ihunwo, Owhonda Chikeru

doi:10.1080/03067319.2020.1832482

Cited by 4 publications

(3 citation statements)

References 38 publications

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“…4). Similar results from the same location were obtained by Ibezim-Ezeani et al (2020) [88] and Ibezim-Ezeani and Ihunwo (2020) [86]. Mean concentrations of Cd and Cr in surface sediment sampled from Pearl River Estuary in China (0.46 and 78.37 mg kg −1 respectively) were below those measured in the sediment sample used for this experiment, while the mean concentration of Pb (49.66 mg kg −1 ) was higher [107].…”

Section: Fish Survival Ratesupporting

confidence: 91%

“…The collection of samples was within the axes of Woji bridge and situated at 4°48ʹ51.6ʹʹN 7°02ʹ47.0ʹʹE of Woji Creek in Obio/ Akpor Local Government Area of Rivers State, Nigeria (figure 1). A study carried out from August to October 2019 revealed that sediment studied in this location had a pollution load index of 2.58×10 15 contributed by Cd, Ni, Fe, Pb and Cu [88]. The sample location is situated under the Woji bridge and potential sources of metal pollution may include deposition of waste from traffic emissions, Port Harcourt Zoo waste effluent, atmospheric depositions from burning, market waste dump, abattoir waste effluent, rusting abandoned scrap metals, construction works waste, abandoned and rusting boats and barges, sewage disposal, urban and industrial effluent discharge, and upstream water flow.…”

Section: Sample Collectionmentioning

confidence: 88%

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Metal accumulation in muscle and oxidative stress response in the liver of juvenile Oreochromis niloticus from contaminated sediment under a simulation of increasing temperature

Ihunwo

Ibezim-Ezeani

2022

Environ. Res. Commun.

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In the present study, a mesocosm experiment with contaminated sediment and clean groundwater using juvenile Oreochromis niloticus was set up to assess the effect of increasing temperature on bioaccumulation of metal in fish muscles (cadmium, chromium, nickel, and lead) and enzymatic activities in fish liver [reduced glutathione (GSH), glutathione reductase (GR), superoxide dismutase (SOD), glutathione transferase (GST), and glutathione peroxidase (GSH Px)]. The trend of temperature variation was Control 1 (0 Watts) < 60 Watts < 100 Watts < Control 2 (200 Watts). After 72hrs, there was no observed mortality in Controls 1 and 2; however, the % Survival in 0 Watts reduced to 90.0 ± 4.0 %. Furthermore, 60, 100 and 200 Watts had lower rates of survival at 46.0 ± 6.9, 36.0 ± 13.1, and 24.0 ± 11.1 % respectively. The calculated bioaccumulation factors (BAFs) for metals was in the trend: Pb > Cd > Cr > Ni. Mean metal pollution index (MPI) in fish muscles was lowest at 0 watts (24hrs - 7.86 ± 1.72, 72hrs - 25.77 ± 4.56) and highest at 100 watts (24hrs - 39.45 ± 1.91, 72hrs - 55.82 ± 1.05). Controls 1 and 2 showed no significant difference in the concentration of GSH and GR while showing a significant difference in GST and GSH Px concentrations after 24 and 72 hrs. Pearson’s correlation showed that GSH was inhibited by water temperature and, Cd, Cr, and Pb concentrations in surface water and fish. Therefore, an increase in ambient temperature in an already contaminated environment will increase the bioavailability of metal contaminants leading to an increase in bioaccumulation and exacerbation of oxidative stress in juvenile tilapia.

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Section: Fish Survival Ratesupporting

confidence: 91%

Section: Sample Collectionmentioning

confidence: 88%

Metal accumulation in muscle and oxidative stress response in the liver of juvenile Oreochromis niloticus from contaminated sediment under a simulation of increasing temperature

Ihunwo

Ibezim-Ezeani

2022

Environ. Res. Commun.

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“…The common soil heavy metal pollution risk assessment methods can be divided into two categories: index and model methods [ 65 , 66 ]. Index methods mainly included the single pollution index method [ 67 ], the Nemerow index method [ 65 ], the pollution load index method, the environmental risk index method, and the geoaccumulation index method [ 68 ]. Model methods mainly include the enrichment factor method and the fuzzy comprehensive evaluation method.…”

Section: Discussionmentioning

confidence: 99%

Bibliometric Analysis of the Influencing Factors, Derivation, and Application of Heavy Metal Thresholds in Soil

Lin

et al. 2022

IJERPH

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The study of threshold levels of heavy metals in soil is essential for the assessment and management of soil environmental quality. This study reviewed the influencing factors, the derivation, and application aspects of heavy metals’ threshold values comprehensively by a combination of bibliometric analysis and scientific knowledge mapping. A total of 1106 related studies were comprehensively extracted from the Web of Science database during the period from 2001 to 2020. The results showed that the publication output has been growing strongly. An analysis on the subject, journal, country, and institution was carried out to demonstrate the development and evolution of this research branch during the two decades. According to high-frequency keywords analysis, external factors (e.g., soil physicochemical properties) and internal factors (e.g., crop genotype) can affect heavy metal threshold values in the soil–crop system. The current methods mainly include the Point model (e.g., evaluation factor method), the Probability model (e.g., species sensitivity distribution method), and the Empirical model (e.g., ecological environment effect method). A threshold study can be applicable to the risk assessment for soil heavy metal contamination in order to determinate the soil pollution degree and its spatial and temporal distribution characteristics. Moreover, challenges and prospects of the study of heavy metal threshold values are proposed, indicating that research should focus on the relationships between human health risks and the established threshold values of heavy metals in the soil, long-term field trials and bioavailability of heavy metals for the derivation of the thresholds, and the establishment of more scientific and rational soil environmental benchmarks.

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Bioaccumulation and genotoxic effect of heavy metal pollution in marine sponges from the Niger Delta

Chidugu-Ogborigbo,

Sunday Nkopuyo,

Hodges Nikolas

et al. 2025

Marine Pollution Bulletin

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Assessment of metal contamination in sediment from Woji Creek, Niger Delta Region of Nigeria

Cited by 4 publications

References 38 publications

Metal accumulation in muscle and oxidative stress response in the liver of juvenile Oreochromis niloticus from contaminated sediment under a simulation of increasing temperature

Metal accumulation in muscle and oxidative stress response in the liver of juvenile Oreochromis niloticus from contaminated sediment under a simulation of increasing temperature

Bibliometric Analysis of the Influencing Factors, Derivation, and Application of Heavy Metal Thresholds in Soil

Bioaccumulation and genotoxic effect of heavy metal pollution in marine sponges from the Niger Delta

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