Metal pollution of soil, plants, feed and food in the Niger Delta, Nigeria: Health risk assessment through meat and fish consumption

Okoye, Esther Amaka; Bocca, Beatrice; Ruggieri, Flavia; Ezejiofor, Anthonett N.; Nwaogazie, Ify L.; Domingo, José L.; Rovira, Joaquim; Frazzoli, Chiara; Orisakwe, Orish Ebere

doi:10.1016/j.envres.2021.111273

Cited by 36 publications

(11 citation statements)

References 34 publications

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“…There are various routes of entering these elements into organisms’ bodies. Anthropogenic interventions, such as industrial inputs [ 11 ], agricultural waste [ 12 ], and natural origins, such as underwater volcanic eruptions [ 13 ], can permit toxic elements to enter aquatic ecosystems that make a route to enter into the body of the aquatic animals, ultimately accumulating them in their consumers, such as humans.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on the Distribution of Essential, Non-Essential Toxic, and Other Elements across Trophic Levels in Various Edible Aquatic Organisms in Sri Lanka and Dietary Human Risk Assessment

Wickrama-Arachchige

Guruge

Tani

et al. 2022

Toxics

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Thirty-six elements are categorized as essential but toxic in excess amount (EBTEs), non-essential toxic (NETs), and Other in 29 different edible aquatic species dwelling in offshore pelagic, and coastal and estuarine (CE) ecosystems were investigated in Sri Lanka. Elements were analyzed using an energy-dispersive X-ray fluorescence (EDXRF) spectrometer, and an NIC MA-3000 Mercury Analyzer. EBTEs showed a negative relationship, whereas NETs showed a positive relationship between the concentration (mg/kg wet weight) and trophic levels in both ecosystems. EBTEs showed trophic dilution, whereas NETs showed trophic magnification. Some elements in a few organisms exceeded the maximum allowable limit which is safe for human consumption. There was a positive relationship (R2 = 0.85) between the concentration of mercury and body weight of yellowfin tuna (YFT). For the widely consumed YFT, the calculated hazard index (HI) for the non-carcinogenic health and exposure daily intake of NETs for adults were 0.27 and 9.38 × 10−5 mg/kg bw/day, respectively. The estimated provisional tolerable weekly intake (PTWI) (μg/kg bw/w) was 0.47 for arsenic and 0.05 for antimony, cadmium, mercury, and lead. The HI and PTWI values were below the recommended limits; thus, consumption of YFT does not pose any health risk for Sri Lankan adults.

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Section: Introductionmentioning

confidence: 99%

Comparative Study on the Distribution of Essential, Non-Essential Toxic, and Other Elements across Trophic Levels in Various Edible Aquatic Organisms in Sri Lanka and Dietary Human Risk Assessment

Wickrama-Arachchige

Guruge

Tani

et al. 2022

Toxics

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“…Treatments were by oral gavage to precisely administer a fixed volume. The doses of the heavy metal mixture (Pb, (20mgkg −1 ), Hg (0.40mgkg −1 ), Mn (0.560mgkg −1 ) and Al (35mgkg −1 )) ( Eddie-Amadi et al 2022 ) reflective of concentrations recorded in various environmental matrices in the Niger delta, Nigeria ( Okoye et al 2021 ). The animals’ treatment protocol detailed as follows Table 1 lasted for 60 days:…”

Section: Methodsmentioning

confidence: 99%

“…The solution was made up to 15 ml (final volume) with deionized water. Solar thermo elemental flame Atomic Absorption Spectrometer (Model SG 71906) was used to determine the Lead (Pb), Alumnium (Al), Mercury (Hg) and Manganese (Mn) concentrations Okoye et al 2021 . The limits of detection (LoD) were 0.001 mg/Kg for Alumnium (Al), Mercury (Hg) and Manganese (Mn) and 0.01 mg/Kg for Pb, while the limits of quantification (LoQ) were 0.0033 mg/Kg for Alumnium (Al), Mercury (Hg) and Manganese (Mn) and 0.033 mg/Kg for Pb.…”

Section: Methodsmentioning

confidence: 99%

“…The consistent observation of impaired reproductive function by environmental exposure to toxic chemicals, including heavy metals like Pb, Al, Hg, and Mn necessitated this study ( Orisakwe, 2021 ). Crude oil exploration, artisanal refinery and sundry foundry activities in Niger delta, Nigeria have impacted negatively and added to the environmental burden of heavy metals (Pb, Hg, Al and Mn) with attendant public health issues which demand urgent attention and need to harness available remedies ( Okoye et al, 2021 , Liu et al, 2018 , Su et al, 2016 ). Furthermore, some antioxidants are known to exert anti-apoptotic effect in heavy metal-induced damage via inhibition of oxidative stress due to activated Nrf2 signalling ( Deng et al, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

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Zn and Se abrogate heavy metal mixture induced ovarian and thyroid oxido-inflammatory effects mediated by activation of NRF2-HMOX-1 in female albino rats

Eddie-Amadi¹,

Ezejiofor²,

Orish³

et al. 2023

Current Research in Toxicology

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“…Metals are the most persistent pollutants related to recent anthropogenic activities, and their toxicity varies depending on parameters, such as age, gender, and other individual variability [ 8 ]. Simply put, they have the potential to bioaccumulate in the food chain and endanger human health.…”

Section: Introductionmentioning

confidence: 99%

Pollution and Potential Ecological Risk Evaluation Associated with Toxic Metals in an Impacted Mangrove Swamp in Niger Delta, Nigeria

Chris

Anyanwu

2022

Toxics

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Anthropogenic activities along coastal areas have contributed to the unwarranted discharge of toxic metals into mangrove swamps, posing risks to marine deposits and ecological environments. In this research, we studied the Isaka–Bundu tidal swamp area in the Niger Delta, which is an impacted mangrove creek located along the Bonny river, exposed to pollution pressures. The ecological risks (Er) of toxic metals in the sediments and water of the Isaka–Bundu tidal mangrove swamp followed a decreasing order (Cu > Zn > Cd > Cu > Pb > As), according to our results, while the potential ecological risk index (PERI) of the toxic metals in the sediments and water of the Isaka–Bundu tidal mangrove swamp can be said to have a very high ecological risk (PERI ≥ 600). The sediment pollution load index (PLI) was higher than 1 in all three analyzed stations, suggesting extremely toxic pollution. The enrichment evaluation shows that the studied stations have a moderate potential ecological risk of Cd, with the enrichment value for Pb showing low potential ecological risk. Our study shows that the Isaka–Bundu tidal mangrove swamp has a significant level of toxic metal pollution, which is evidence of the illegal activities performed in the Niger Delta.

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Metal pollution of soil, plants, feed and food in the Niger Delta, Nigeria: Health risk assessment through meat and fish consumption

Cited by 36 publications

References 34 publications

Comparative Study on the Distribution of Essential, Non-Essential Toxic, and Other Elements across Trophic Levels in Various Edible Aquatic Organisms in Sri Lanka and Dietary Human Risk Assessment

Comparative Study on the Distribution of Essential, Non-Essential Toxic, and Other Elements across Trophic Levels in Various Edible Aquatic Organisms in Sri Lanka and Dietary Human Risk Assessment

Zn and Se abrogate heavy metal mixture induced ovarian and thyroid oxido-inflammatory effects mediated by activation of NRF2-HMOX-1 in female albino rats

Pollution and Potential Ecological Risk Evaluation Associated with Toxic Metals in an Impacted Mangrove Swamp in Niger Delta, Nigeria

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