High Levels of Heavy Metals in Blood of the Urban Population in Nigeria

Ibeto, C. N.; Okoye, C. O. B.

doi:10.3923/rjes.2010.371.382

Cited by 45 publications

(28 citation statements)

References 23 publications

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“…This poses very serious health risks to the populace living within the area (Ibeto and Okoye, 2010). Clemente et al (2009) states that in aquatic environments inorganic mercury is microbiologically transformed into lipophilic organic compound, methyl mercury, and this transformation makes mercury more prone to bio-magnifications in food chains and results in psychomotor retardation in children (Horsfall, 2001), autism (Lim et al, 2008), and dysplasia of cerebral and cerebellar cortexes, neuronal ectopia and several other developmental disturbances (Zukowska and Biziuk, 2008).…”

Section: Heavy Metals In Water Samplesmentioning

confidence: 99%

Concentrations and Risk Evaluation of Selected Heavy Metals in Water and African Catfish Clarias gariepinus in River Kaduna, Nigeria

Onyidoh¹,

Ibrahim²,

Ismail³

et al. 2017

GJEE

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Freshwater is a vital medium by which fish for human consumption are cultured, thus, preserving its quality is essential. The presence and bioaccumulation pattern of some heavy metal concentrations in wild African Catfish, Clarias gariepinus (Burchell, 1822) muscles and water samples, collected from River Kaduna during the dry season month of December was assessed, to determine their concentrations, physico-chemical parameters, and risk evaluation of selected metals and their effects on fish quality. Analysis was carried out using standard analytical procedures and methods. Risk assessment for Fe, Pb, Ni, Cd, and Hg were based on average daily dose, hazard quotient, and cancer risk was also determined. Result showed that physico-chemical parameters, were within WHO recommended threshold limits, and mean concentrations of heavy metals followed the order Fe>Pb>Hg>Ni>Cd. Carcinogenic risk ( ) via ingestion of fish muscles for Pb, Hg and Cd were higher than the acceptable limit (10 -6 ). Anthropogenic activities, especially indiscriminate waste disposal were suggested as the main contributor to environmental pollution. Findings reveals possible health implications, thus constant surveillance was suggested to guide appropriate response.

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Section: Heavy Metals In Water Samplesmentioning

confidence: 99%

Concentrations and Risk Evaluation of Selected Heavy Metals in Water and African Catfish Clarias gariepinus in River Kaduna, Nigeria

Onyidoh¹,

Ibrahim²,

Ismail³

et al. 2017

GJEE

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“…Stojanovic et al studied 123 non-exposed subjects and reported blood nickel levels ranging from 0.01-0.42 μg/L without a significant difference between smokers and non-smokersmuch lower than the mean BNi in residents from all studied villages (21). Ibeto and Okoye observed a mean BNi of 0.124 ppm in Nigerian urban population (32). The much higher blood concentrations of nickel revealed in the current study pose a health risk, especially for the residents of Zmeyovo.…”

Section: Resultsmentioning

confidence: 87%

Blood concentration of heavy metals among environmentally exposed residents of Stara Zagora municipality (Bulgaria)

Gidikova¹,

Sandeva²,

Deliradeva³

et al. 2015

TJS

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PURPOSE: The aim of this study was to reveal whether people living in the villages Zmeyovo and Borilovo (where the highest rates of excessive and borderline heavy metal concentrations in plants had previously been registered) are at higher risk of combined exposure to lead, cadmium and nickel. METHODS: Blood levels of these heavy metals were studied in groups of 17 nonsmokers (9 females and 8 males) from each of the studied villages, and in a control group from a remote mountain village by atomic absorption spectrometry. RESULTS: The mean blood levels of lead (56.48 and 19.93 μg/dL) and cadmium (3.36 and 0.95 μg/L) for Zmeyovo and Borilovo respectively were significantly higher than those in the control group. Mean nickel blood concentration was higher than controls for Zmeyovo only (2.17 μg/dL). Statistically significant correlations among blood levels of lead, cadmium and nickel were found, which suggested combined exposure. The mean concentrations of all the heavy metals studied were relatively higher than available data for the general population in Europe. CONCLUSIONS: The study showed an increased exposure to heavy metals among residents of the region. Implementation of screening programs, especially for children and young adults, is therefore advised.

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“…As shown in Table 3 2010a;2010b). Source: 2010a;2010b However certain measures can be taken to reduce the effects of these heavy metals in the body.…”

Section: Resultsmentioning

confidence: 99%