Human Health Risk Assessment of Heavy Metal Contamination for Population via Consumption of Selected Vegetables and Tubers Grown in Farmlands in Rivers State, South-South Nigeria

Okereke, Chioma; Essien, Emmanuel E.; Wegwu, M. O.

doi:10.15406/japlr.2016.03.00077

Cited by 13 publications

(26 citation statements)

References 29 publications

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“…The daily intake of heavy metals (DIHM, mg/kg person/day) was estimated in relation to the body weights of consumers of M. paradisiaca, Z. mays, C. manii, and M. esculenta. Because DIHM by individuals is directly proportional to average daily consumption of the plant leaf, DIHM was calculated [21]. Thus:…”

Section: Daily Intake Of Heavy Metalsmentioning

confidence: 99%

“…The ORD (mg/kg person/day) for Pb, Co, Cd, Zn, Cu, and Mn used were 0.004, 0.02, 0.001, 0.3, 0.02, 0.04, and 0.033 mg/kg person/day, respectively [22,23]. The consumer population is considered safe when HRI is less than 1 [21].…”

Section: Hri = Dihmmentioning

confidence: 99%

“…According to Okereke et al, [21] the physicochemical properties of soil and plants could influence the transfer or mobility of metals from soil to plant. These physicochemical properties are on the other hand influenced by industrial activities such as oil mining.…”

Section: Ratio Of Plant Leaf To Soil Bioaccumulation Of Heavy Metalsmentioning

confidence: 99%

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Bioaccumulation and health risk assessment of heavy metals in Musa paradisiaca, Zea mays, Cucumeropsis manii and Manihot esculenta cultivated in Onne, Rivers State, Nigeria

Ohiagu

Lele

Chikezie

et al. 2020

Environ Anal Health Toxicol

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This study was carried out to investigate heavy metals concentrations: lead (Pb), cobalt (Co), cadmium (Cd), zinc (Zn), nickel (Ni), copper (Cu) and manganese (Mn) in Musa paradisiaca (plantain), Zea mays (maize), Cucumeropsis manii (melon), Manihot esculenta (cassava) and soil samples from dumpsites in Onne, Eleme Local Government Area, Rivers State, Nigeria. The plant leaf and soil samples were measured for heavy metals concentrations using atomic absorption spectrophotometer. The health risk index (HRI) of the heavy metals following the consumption of these plant materials by the populace was estimated using standard protocols. The heavy metals concentrations in the leaf samples ranged from 0.012-14.712 mg/kg, whereas those of the soil samples were within the range of 2.543-16.459 mg/kg. Cd concentrations in the soil and leaf samples were above the maximum permissible level according to the World Health Organization (WHO). The bioaccumulation of the heavy metals followed the trend: (M. paradisiaca) Zn > Pb > Co > Mn > Cu > Cd > Ni; (Z. mays) Mn > Pb > Co > Zn > Cu > Cd > Ni; (C. mannii) Mn > Co > Pb > Cu > Zn > Cd > Ni; (M. esculenta) Zn > Pb > Mn > Cu > Co > Ni > Cd. The highest bioaccumulation of the heavy metals occurred in M. esculenta. The estimated HRI of Pb in M. esculenta was greater than 1. HRI > 1 was indicative that the consumer population is not safe. Cassava-based meals from the dumpsites contained Pb at toxic level, whereas Co, Cd, Zn, Ni, Cu, and Mn concentrations in plantain-, maize-and melon-based meals were relatively within safe limits.

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Section: Daily Intake Of Heavy Metalsmentioning

confidence: 99%

Section: Hri = Dihmmentioning

confidence: 99%

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Bioaccumulation and health risk assessment of heavy metals in Musa paradisiaca, Zea mays, Cucumeropsis manii and Manihot esculenta cultivated in Onne, Rivers State, Nigeria

Ohiagu

Lele

Chikezie

et al. 2020

Environ Anal Health Toxicol

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“…For the assessment of health risks through oral ingestion of the phenolic endocrine disrupting compounds in the drinking water, the chronic daily intake (CDI) and risk quotient (RQ) for each of the phenolic EDCs were calculated using the following mathematical relationships [18]:…”

Section: Human Health Risk Assessmentmentioning

confidence: 99%

“…Higher CDI values were observed for children. This is a future health concern as children have longer exposure duration [18]. The results for the calculated risk quotients for the children and adult populations at the communities in the study are presented in Tables 9-11.…”

Section: Levels and Distribution Of Phenolic Edcs In The Shallow Groumentioning

confidence: 99%

Occurrence and risk assessment of phenolic endocrine disrupting chemicals in shallow groundwater resource from selected Nigerian rural settlements

Onyekwere

Okonkwo

Okoroafor

et al. 2019

Ovidius University Annals of Chemistry

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To date, limited information exists on the distribution of endocrine disrupting compounds in groundwater resources from African rural settlements. In view of this knowledge gap, the present study investigated the concentrations and potential health risks of phenolic endocrine disrupting chemicals (EDCs) in underground water samples obtained from eight rural settlements in Nigeria, West Africa. The water samples were obtained from domestic drinkable communal wells at Anambra (Mgbaukwu and Umudioka), Lagos (Bariga, Itire and Mushin), and Delta (Agbarho, Ikweghwu and Orhokpokpor) states representing the South-East, South-West and South-South Nigeria respectively. Samples were analyzed for 10 selected chlorinated, nitrogen-containing and alkyl phenolic compounds using gas chromatography coupled with flame ionization detector technique. At all understudied sites, selected phenolic compounds with the exception of 2-chlorophenol which was below detectable limits at 4 sites (Agbarho, Mgbaukwu, Umudioka site 1 and Mushin) were detected. The concentrations of the phenolic compounds in the samples from the different sites ranged between below detectable limits to 0.0904 ppm. Nonylphenol, 2,4-dinitrophenol and 2,4,6-trichlorophenol were predominant at EDCs in most sites when compared with the other phenolic contaminants. The calculated chronic daily intake (CDI) results for the exposed populations at the communities implies that the level of occurrence and daily intake of 2-nitrophenol, 2,4-dimethylphenol, 4-nitrophenol, 2-chlorophenol and bisphenol A were still below their respective oral reference doses. Nonylphenol and 2,4,6-trichlorophenol (risk quotient, RQ > 1) were identified as the major EDC contributors to potential health risk for exposed populations at the communities.

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Evaluation of the Levels of Nine Heavy Metals in Five Crops Using AAS and XRF

Kalagbor

2022

Food Security and Safety Volume 2

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Human Health Risk Assessment of Heavy Metal Contamination for Population via Consumption of Selected Vegetables and Tubers Grown in Farmlands in Rivers State, South-South Nigeria

Cited by 13 publications

References 29 publications

Bioaccumulation and health risk assessment of heavy metals in Musa paradisiaca, Zea mays, Cucumeropsis manii and Manihot esculenta cultivated in Onne, Rivers State, Nigeria

Bioaccumulation and health risk assessment of heavy metals in Musa paradisiaca, Zea mays, Cucumeropsis manii and Manihot esculenta cultivated in Onne, Rivers State, Nigeria

Occurrence and risk assessment of phenolic endocrine disrupting chemicals in shallow groundwater resource from selected Nigerian rural settlements

Evaluation of the Levels of Nine Heavy Metals in Five Crops Using AAS and XRF

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