Studies on heavy metals and fish health indicators in Malapterurus electricus from Lekki Lagoon, Lagos, Nigeria

Kuton, Minasu Pentho; Ayanda, Isaac O.; Uzoalu, Ijeoma A.; Akhiromen, Dorathy Iniobong; George, Aderonke; Akinsanya, Bamidele

doi:10.1016/j.vas.2021.100169

Cited by 9 publications

(6 citation statements)

References 29 publications

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“…Fish liver damage due to heavy metal exposure has been reported in various geographical sites (Kuton et al 2021 ; Rubalingeswari et al 2021 ; Weber et al 2020 ; Kumar Maurya et al 2019 ; Łuczyńskaa et al 2018 ; Uysal 2011 ) indicating the importance of their monitoring and evaluation. Kumar Maurya et al ( 2019 ) revealed that heavy metal accumulation in fish tissues is in the magnitude order of liver > gill > muscle pointing out Ni, Cr, Pb, Cu, Cd, Zn, and Fe as dominant metals influencing toxicity in fish tissues (Rubalingeswari et al 2021 ).…”

Section: Wwtp-associated Legacy Contaminants and Emerging-concern Con...mentioning

confidence: 99%

Fish liver damage related to the wastewater treatment plant effluents

Popović

Čižmek

Babić

et al. 2023

Environ Sci Pollut Res

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Wastewater treatment plants (WWTPs) continuously release a complex mixture of municipal, hospital, industrial, and runoff chemicals into the aquatic environment. These contaminants are both legacy contaminants and emerging-concern contaminants, affecting all tissues in a fish body, particularly the liver. The fish liver is the principal detoxifying organ and effects of consistent pollutant exposure can be evident on its cellular and tissue level. The objective of this paper is thus to provide an in-depth analysis of the WWTP contaminants’ impact on the fish liver structure, physiology, and metabolism. The paper also gives an overview of the fish liver biotransformation enzymes, antioxidant enzymes, and non-enzymatic antioxidants, their role in metabolizing xenobiotic compounds and coping with oxidative damage. Emphasis has been placed on highlighting the vulnerability of fish to xenobiotic compounds, and on biomonitoring of exposed fish, generally involving observation of biomarkers in caged or native fish. Furthermore, the paper systematically assesses the most common contaminants with the potential to affect fish liver tissue. Graphical Abstract

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Section: Wwtp-associated Legacy Contaminants and Emerging-concern Con...mentioning

confidence: 99%

Fish liver damage related to the wastewater treatment plant effluents

Popović

Čižmek

Babić

et al. 2023

Environ Sci Pollut Res

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“…On the other hand, Kamaruzzaman et al (2010) [94] reported that the concentrations of Zn, Cu, and Pb follow the order stomach > muscle > gills in S. leptolepis, E. affinis, P. niger, L. malabaricus, E. sexfasciatus, R. kanagurta, N. japonicus, and M. cordylafrom from the Pahang coastal water in Malaysia. The concentrations of metals in several fish samples were found to be low [46,[95][96][97][98]. Copat et al (2013) [99] reported similarly low levels of Cd and Pb in shellfish samples from the eastern Mediterranean Sea.…”

Section: Metalsmentioning

confidence: 99%

A Review of Chemical Contaminants in Marine and Fresh Water Fish in Nigeria

Uzomah

Lundebye

Kjellevold

et al. 2021

Foods

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Pollutants in aquatic food are a major global concern for food safety and are a challenge to both national and international regulatory bodies. In the present work, we have reviewed available data on the concentrations of polycyclic aromatic hydrocarbons (PAH), persistent organic pollutants, metals, and microplastics in freshwater and marine fish in Nigeria with reference to international maximum levels for contaminants in food and the potential risk to human health. While most of the contaminant levels reported for fish do not imply any health issues, iron and lead may represent potentially toxic levels in fish from specific areas. Studies on PAHs in marine fish are scarce in Nigeria, and the main focus is on the environmental pollution caused by PAHs rather than on their presence in food. The findings suggest that the consumption of smoked Ethmalosa fimbriata poses a higher potential carcinogenic risk than the other fish species that were investigated. Most of the other studies on PAHs in smoked fish are focused on the smoking method, and little information is available on the initial level of PAHs prior to the smoking process. Metal contamination in fish appeared to be affected by mineral deposits in the environment and industrial effluents. In general, heavy metal levels in fish are below the maximum levels, while there is limited data available on POPs of relevance to food safety in fish from Nigeria, particularly in terms of dioxins, brominated flame retardants, and fluorinated compounds. Furthermore, there is currently limited information on the levels of microplastics in fish from Nigerian waters. This work revealed the need for a more systematic sampling strategy for fish in order to identify the most vulnerable species, the hot spots of contaminants, and applicable food safety control measures for fish produced and consumed in Nigeria.

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“…Fish species has been used as bio-indicators in many research carried out on heavy metal pollution in the environment [8,9]. Fish is low in cholesterol and contains all essential amino acids and is estimated to provide roughly 60% of the world's protein requirements, with 60% of the developing world obtaining more than 30% of their animal protein from fish [10]. Heavy metals can build up in fish and proliferate throughout the food web, causing health problems in humans, such as cardiovascular, renal, and neurological disorders [11].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Estimated Daily Intake of Toxic Metals and Potential Health Risks in Oreochromis noliticus (Tilapia Fish)

2022

Bulg.J.Phys.

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Oreochromis noliticus (Tilapia fish) is one of the major sources of protein and its readily available in all the markets, Agboyi river is one of the major outlet of Tilapia fish in the southwest Nigeria this was the motivation for this study. Pb, Cr, Mn, Cd, Zn and Ni were identified from Oreochromis noliticus (Tilapia fish). Objectives: This study aimed to quantify the level of heavy metals and determine the health risk index (HRI) level using estimated daily intake (EDI) of Oreochromis noliticus in samples collected. Methodology: Oreochromis noliticus samples were collected (samples D1 to D3) from Agboyi river a fresh water river, and dried then the edible tissues were separated from the other parts of the fish, this was then digested for a Perkin-Elmer model 306 Atomic Absorption spectrophotometer (AAS) for the analysis to ascertain the levels of concentration of the metals identified in the samples. Results: From the samples D1 to D8, for Pb concentrations is the highest in sample D8 with the value of 7.32±0.65 mg/kg and lowest in the sample D6 with the value of 0.02± 0.33 mg/kg. The Ni concentration is highest in sample D5 with value 2.72 ± 0.03 mg/kg, lowest in sample D6, D8 and not detectable (ND) in sample D1. Zn concentration is highest in sample D3 with the mean concentration of 62.99 ± 0.05 mg/kg and lowest in sample D6 with a value of 0.74 ± 0.14 mg/kg. Cr mean concentration in D3 and D6 are 8.51 ± 0.54 mg/kg and 0.02 ± 0.63 mg/kg respectively the highest and the lowest in all the samples. Whereas, Mn mean concentration are 9.51 ± 0.42 mg/kg and 0.73 ± 0.07 mg/kg in sample D4 and D7 respectively and this implies that sample D4 has the highest while sample D7 has the lowest values of Mn. Cd has the highest mean concentration values in D1 and the lowest in D6 with values of 5.76±0.66 mg/kg and 0.01±0.68 mg/kg respectively. These values where used to compute the EDI for both children and adults using each sample per heavy metal identified. The EDI for the children is within the range of 0.012-0.638 mg/kgBw/day and for the adults within the range of 0.002-0.193 mg/kgBw/day. The health risk index (HRI) greater than 386 1310-0157 c 2022 Union of the Physicists in Bulgaria (UPB)Investigation of Estimated Daily Intake of Toxic Metals and ... unity in samples D1 and D3, whereas in other samples is less than unity. The targeted cancer risk (TCR) was estimated in Pb and Ni obtained results were less than USEPA 2010 recommended values. Conclusion: From the obtained results, the HRI obtained from the samples collected did not exceed the standard guideline values, so therefore; the estimated hazard index (HI) suggests that it safe to consume fish from Agboyi River.

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Studies on heavy metals and fish health indicators in Malapterurus electricus from Lekki Lagoon, Lagos, Nigeria

Cited by 9 publications

References 29 publications

Fish liver damage related to the wastewater treatment plant effluents

Fish liver damage related to the wastewater treatment plant effluents

A Review of Chemical Contaminants in Marine and Fresh Water Fish in Nigeria

Investigation of Estimated Daily Intake of Toxic Metals and Potential Health Risks in Oreochromis noliticus (Tilapia Fish)

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