Radiotoxicity risk assessments of ceramic tiles used in Nigeria: The Monte Carlo approach

Mawell, Omeje; Orosun, Muyiwa Michael; Oladotun, Adewoyin Olusegun; Sunday, Joel Emmanuel; Rachael, Usikalu Mojisola; Oladokun, Olagoke; Emmanuel, Ehinlafa Olusegun; Anne, Omeje Uchechukwu

doi:10.1016/j.enmm.2021.100618

Cited by 7 publications

(4 citation statements)

References 26 publications

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“…The National Academy of Sciences and USEPA 42 , 43 have acknowledged Monte Carlo simulation as a means of appraising variability and uncertainty in health risk evaluations. This is because it presents a quantitative approach to evaluate the probability distributions for health risks within the legitimacy of the risk assessment model 40 , 41 , 44 and offers additional information for decision-making related to human health and environmental protection 45 . Decisions regarding the needs for mitigation or remediation is a very critical task involving the analysis of risks.…”

Section: Methodsmentioning

confidence: 99%

Potentially toxic metals in irrigation water, soil, and vegetables and their health risks using Monte Carlo models

Orosun,

Nwabachili,

Alshehri

et al. 2023

Sci Rep

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Food safety has become a serious global concern because of the accumulation of potentially toxic metals (PTMs) in crops cultivated on contaminated agricultural soils. Amongst these toxic elements, arsenic (As), cadmium (Cd), chromium (Cr), and lead (Pb) receive worldwide attention because of their ability to cause deleterious health effects. Thus, an assessment of these toxic metals in the soils, irrigation waters, and the most widely consumed vegetables in Nigeria; Spinach (Amaranthushybridus), and Cabbage (Brassica oleracea) was evaluated using inductively coupled plasma-optical emission spectroscopy (ICP-OES). The mean concentration (measured in mg kg−1) of the PTMs in the soils was in the sequence Cr (81.77) > Pb(19.91) > As(13.23) > Cd(3.25), exceeding the WHO recommended values in all cases. This contamination was corroborated by the pollution evaluation indices. The concentrations (measured in mg l−1) of the PTMs in the irrigation water followed a similar pattern i.e. Cr(1.87) > Pb(1.65) > As(0.85) > Cd(0.20). All the PTMs being studied, were found in the vegetables with Cr (5.37 and 5.88) having the highest concentration, followed by Pb (3.57 and 4.33), and As (1.09 and 1.67), while Cd (0.48 and 1.04) had the lowest concentration (all measured in mg kg−1) for cabbage and spinach, respectively. The concentration of the toxic metals was higher in spinach than in cabbage, which may be due to the redistribution of the greater proportion of the metals above the ground tissue, caused by the bioavailability of metals in the aqueous phase. Expectedly, the hazard index (HI),and carcinogenic risk values of spinach were higher than that of cabbage. This implies that spinach poses potentially higher health risks. Similarly, the Monte Carlo simulation results reveal that the 5th percentile, 95th percentile, and 50th percentile of the cumulative probability of cancer risks due to the consumption of these vegetables exceeds the acceptable range of 1.00E−6 and 1.00E−4. Thus, the probable risk of a cancerous effect is high, and necessary remedial actions are recommended.

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Section: Methodsmentioning

confidence: 99%

Potentially toxic metals in irrigation water, soil, and vegetables and their health risks using Monte Carlo models

Orosun,

Nwabachili,

Alshehri

et al. 2023

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…The MCS probabilistic approach has the greater advantage of exposing scientists to all the feasible outcomes in order to evaluate the impact of risk, so as to make better decisions under uncertainty. The Monte Carlo simulation ( MCS ) performs the risk analysis by developing models that produces all possible outcomes through interchanging array of values (probability distribution) for factors containing intrinsic uncertainty ( Omeje et al., 2022 ; Shahrbabki et al., 2018 ; Karami et al., 2019 ). The MCS then computes the outcomes severally (with ten thousand trials in this work), expending several random values from the probability functions in each occasion.…”

Section: Methodsmentioning

confidence: 99%

Soil-to-plant transfer of 40K, 238U and 232Th and radiological risk assessment of selected mining sites in Nigeria

Orosun

Usikalu²,

Oyewumi³

et al. 2022

Heliyon

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“…Lead (Pb), one of the ubiquitous toxic metals, was found in locations A and B. This may be associated with vehicular emission and the chipping of lead-based paint from the wall surfaces as these preschool centres are very old buildings [ 36 , 41 , 42 ]. The age of the sampled locations (buildings) is shown in Table 1 .…”

Section: Results and Discussionmentioning

confidence: 99%

Physico-chemical characterization of indoor settled dust in Children's microenvironments in Ikeja and Ota, Nigeria

Anake

Nnamani

2023

Heliyon

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Radiotoxicity risk assessments of ceramic tiles used in Nigeria: The Monte Carlo approach

Cited by 7 publications

References 26 publications

Potentially toxic metals in irrigation water, soil, and vegetables and their health risks using Monte Carlo models

Potentially toxic metals in irrigation water, soil, and vegetables and their health risks using Monte Carlo models

Soil-to-plant transfer of 40K, 238U and 232Th and radiological risk assessment of selected mining sites in Nigeria

Physico-chemical characterization of indoor settled dust in Children's microenvironments in Ikeja and Ota, Nigeria

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