Evaluating the health risk of metals (Zn, Cr, Cd, Ni, Pb) in staple foods from Lagos and Ogun States, Southwestern Nigeria

Taiwo, Adewale M.; Oyeleye, O F; Majekodunmi, Bukola; Anuobi, V E; Afolabi, Segun; Idowu, O. A.; Ojekunle, Z. O.; Taiwo, O

doi:10.1007/s10661-019-7307-5

Cited by 30 publications

(2 citation statements)

References 25 publications

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“…The concentrations of maize Cr and Ni were the major contributors to non-carcinogenic health risk and carcinogenic risk, respectively. Taiwo et al ( 14 ) reported that Cr had the largest HQ of all metals, with an HQ > 1 in the maize samples, and the carcinogenic evaluation of Ni and Cr in crops showed CR values above the acceptable threshold of 1.0 × 10 −4 . Children were the most sensitive population in terms of the non-carcinogenic health risk and carcinogenic risk of consuming maize in the contaminated area.…”

Section: Discussionmentioning

confidence: 99%

Heavy metal contamination assessment and probabilistic health risks in soil and maize near coal mines

Yang

Cheng

Gao

et al. 2022

Front. Public Health

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ObjectiveCoal mining activities have continuously introduced heavy metals into the soil–crop system, causing increasing damage to crops. This study integrated the analysis of the heavy metal contamination status and human health risk in soil and maize near coal mines to help formulate control strategies for soil quality, maize production, and safe consumption.MethodThis study was carried out on maize agricultural land near a coal mining plant. Heavy metal contamination was assessed by the geo-accumulation index (Igeo), enrichment factor (EF), and bioaccumulation factor (BCF). The Monte Carlo simulation was used to estimate the probabilistic health risk of heavy metals exposure in soil and maize. The relationship between the concentration of heavy metal in the soil and that in maize was further visualized by correlation analysis and random forest analysis.ResultsThe results revealed that the mean concentrations of soil Ni, Cu, As, Cd, Sn, Zn, Pb, and Hg were all above the local background level. Ni was the most severely polluted heavy metal in maize and had a concentration higher than the risk control standard for corn in China (NY 861-2004). The Igeo values of all heavy metals were low, and EF values showed enrichment in V, Cr, Ti, Ni, and As. The assessment of probabilistic health risk exposed by heavy metals in soil and maize indicated that 1.16 and 1.46% of residents exceeded the carcinogenic risk level due to heavy metal exposure from soil and maize, respectively. Children were the most sensitive to maize and soil heavy metal exposure in the contaminated area. Ingestion of heavy metals was associated with the highest health risk to residents, followed by dermal contact and inhalation. As and Cr in soil and Cr and Ni in maize had the greatest impact on human health risk. Furthermore, maize heavy metals were affected the most by soil Cr, Cd, and V.ConclusionThese results may provide useful information for human carcinogenic risk associated with soil and maize heavy metal exposure due to coal mining activities.

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Section: Discussionmentioning

confidence: 99%

Heavy metal contamination assessment and probabilistic health risks in soil and maize near coal mines

Yang

Cheng

Gao

et al. 2022

Front. Public Health

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“…To the best of our knowledge, two kinds of techniques including deterministic and probabilistic (Monte Carlo simulation) are well applied to estimate the human health risk due to several pollutants ( 23 ). The deterministic risk approach regarding PTE has been carried out in previous studies ( 24 – 26 ). Hu et al ( 27 ) showed that HQ values for elements were significantly lower than 1 of the limit value using the deterministic without considering other variables, such as body weight (BW), ingestion rate (IR), and exposure durations (EDs), which eventually may underestimate the risk outcomes.…”

Section: Introductionmentioning

confidence: 99%

Co-exposure of potentially toxic elements in wheat grains reveals a probabilistic health risk in Southwestern Guizhou, China

Zhang

et al. 2022

Front. Nutr.

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Bijie is located at a typical karst landform of Southwestern Guizhou, which presented high geological background values of potentially toxic elements (PTEs). Recently, whether PTE of wheat in Bijie is harmful to human health has aroused people’s concern. To this end, the objectives of this study are to determine the concentrations of PTE [chromium (Cr), nickel (Ni), arsenic (As), lead (Pb), cadmium (Cd), and fluorine (F)] in wheat grains, identify contaminant sources, and evaluate the probabilistic risks to human beings. A total of 149 wheat grain samples collected from Bijie in Guizhou were determined using the inductively coupled plasma mass spectrometer (ICP-MS) and fluoride-ion electrode methods. The mean concentrations of Cr, Ni, As, Cd, Pb, and F were 3.250, 0.684, 0.055, 0.149, 0.039, and 4.539 mg/kg, respectively. All investigated PTEs met the standard limits established by the Food and Agriculture Organization except for Cr. For the source identification, Cr and Pb should be originated from industry activities, while Ni, As, and Cd might come from mixed sources, and F was possibly put down to the high geological background value. The non-carcinogenic and carcinogenic health risks were evaluated by the probabilistic approach (Monte Carlo simulation). The mean hazard quotient (HQ) values in the three populations were lower than the safety limit (1.0) with the exception of As (children: 1.03E+00). However, the mean hazard index (HI) values were all higher than 1.0 and followed the order: children (2.57E+00) > adult females (1.29E+00) > adult males (1.12E+00). In addition, the mean carcinogenic risk (CR) values for Cr, As, Pb, and Cd in three populations were all higher than 1E-06, which cannot be negligible. The mean threshold CR (TCR) values were decreased in the order of children (1.32E-02) > adult females (6.61E-03) > adult males (5.81E-03), respectively, all at unacceptable risk levels. Moreover, sensitivity analysis identified concentration factor (CW) as the most crucial parameter that affects human health. These findings highlight that co-exposure of PTE in wheat grains revealed a probabilistic human health risk. Corresponding measures should be undertaken for controlling pollution sources and reducing the risks for the local populace.

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Human Health Hazards and Risks Generated by the Bioaccumulation of Lead from the Environment in the Food Chain

Bețianu,

Cozma,

Gavrilescu

2024

Environmental Contamination Remediation and Management

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Evaluating the health risk of metals (Zn, Cr, Cd, Ni, Pb) in staple foods from Lagos and Ogun States, Southwestern Nigeria

Cited by 30 publications

References 25 publications

Heavy metal contamination assessment and probabilistic health risks in soil and maize near coal mines

Heavy metal contamination assessment and probabilistic health risks in soil and maize near coal mines

Co-exposure of potentially toxic elements in wheat grains reveals a probabilistic health risk in Southwestern Guizhou, China

Human Health Hazards and Risks Generated by the Bioaccumulation of Lead from the Environment in the Food Chain

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