Iwegbue Chukwujindu

Iwegbue Chukwujindu
Delta State University, Abraka · Department of Chemistry

B.Sc, MSc, Msc, M.Phil, Ph.D, MIPAN.
transdisciplinary studies of the complex relationships between human activities and emerging environmental contaminants

About

132
Publications
47,251
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
2,756
Citations
Additional affiliations
December 2002 - present
Delta State University, Abraka
Position
  • Professor
Description
  • Teaching, Research and Administration
Education
January 2006 - January 2010
Ambrose Alli University
Field of study
  • Analytical Chemistry

Publications

Publications (132)
Article
Giant African snails were collected from different zones in southern Nigeria, and analyzed for their polycyclic aromatic hydrocarbon (PAH) content. The purpose was to provide information on the health risk arising from exposure to PAHs through consumption of these snails. A mixture of acetone/dichloromethane/n-hexane was used for the Soxhlet extrac...
Article
The characteristic concentrations of 28 PCB congeners, their spatial distributions, sources, and associated risks to both the ecosystem and human health were investigated in sediments of some rivers around a glass industry and power generating plant in the Niger Delta of Nigeria. Gas chromatography-mass spectrometry (GC-MS) was applied for the iden...
Article
Full-text available
The concentrations of 28 polychlorinated biphenyls (PCBs) were determined in soils collected at three depths from thirteen different sites along the floodplain of the lower reaches of the River Niger (LRRN) in Nigeria. The aim of the study was to provide data on the levels of contamination, sources of the contaminants, and risks to the ecosystem an...
Article
Full-text available
The concentrations of the sixteen United States Environmental Protection Agency polycyclic aromatic hydrocarbons (PAHs) were determined in dusts from different land-use types in Benin City by means of gas chromatography–mass spectrometry. The results obtained were used to assess the ecological and human health risk and to determine the source appor...
Article
In this study, we evaluated the concentrations, composition, sources, and potential risks of polycyclic aromatic hydrocarbons (PAHs) in soils, and indoor and outdoor dust from Port Harcourt city in Nigeria. Gas chromatography-mass spectrometry (GC-MS) was used for the detection and quantification of PAH species in the samples. The concentrations of...
Article
This study provides data on the concentrations and occupational risk of Cd, Pb, Cr, Ni, Cu, Co, Mn, Zn, and Fe in indoor dust from visual arts studios of nine tertiary institutions in southern Nigeria. The dust samples were digested in aqua regia and their metal concentrations were quantified by atomic absorption spectrometry. The concentrations of...
Article
Full-text available
The concentrations of the 16 US EPA polycylic aromatic hydrocarbons (PAHs) were investigated in oil and tomato-based sauces from some popular brands of canned fish products (mackerel, sardine and tuna) commonly consumed in Nigeria. The aim of the study was to provide data on the PAH compositions and likely risks arising from ingestion of these oil...
Article
This study assessed the concentrations, sources, and risks of polycyclic aromatic hydrocarbons (PAHs) in sediments from the Rivers Niger, Ase and Forcados in the western Niger Delta. The concentrations of PAHs (in μg kg-1 dry weight), as determined by gas chromatography-mass spectrometry, in sediments from these rivers varied from 2400 to 19,000, 2...
Article
Full-text available
This study provides data on the characteristic levels, spatial patterns, sources, and risk of n-alkanes (AHs) [octane, n-C8, to tetracontane, n-C40] and polycyclic aromatic hydrocarbons (PAHs) in surficial sediments from the Escravos River Basin (ERB), Nigeria. The n-alkane and PAH concentrations in sediments were quantified by chromatographic meth...
Article
Polychlorinated biphenyls (PCBs) were quantified in sediments from the lower reaches of the Niger, Ase and Forcados Rivers in Nigeria with the aim of elucidating the sources, spatial characteristics and likely ecological and human health risks relating to exposure to PCBs in the sediments. A total of 28 PCB congeners, including 7 indicator PCBs and...
Article
In this study, the concentrations of 28 polychlorinated biphenyl (PCB) congeners, including 12 dioxin-like PCBs and 7 indicator PCBs, were determined in sediments around oil production facilities in the Escravos River Basin of the Niger Delta in Nigeria. The aim was to describe the spatial patterns, sources, and ecosystem risks associated with expo...
Article
Full-text available
The study investigated the levels of the USEPA 16 PAHs in soils collected from selected functional areas (cemetery, commercial, industrial and residential areas) of the Nigerian megacity, Lagos. The soil samples were subjected to ultrasonic-assisted extraction in a 1:1 (v/v) mixture of dichloromethane/hexane, and the PAHs in the resulting extracts...
Article
The use of the same batch of oil for deep-frying on several occasions is a common practice. This study sought to determine the effects of repeated frying cycles on the composition, concentrations and risk of polycyclic aromatic hydrocarbons (PAHs) in six types of vegetable oils and the samples of fish fried therein. The PAH concentrations in the oi...
Article
This study presents the results for the determination of the concentrations and distribution patterns of polycyclic aromatic hydrocarbons (PAHs) in urban street dusts from the Nigerian megacity, Lagos, in order to provide information on their sources, and the potential environmental and human health risks arising from exposure to PAH contaminated d...
Article
Full-text available
The concentrations of heavy metals such as Cu, Ni, Pb, Mn, Fe, Cr and Zn were studied in core sediments of Orogodo River, Nigeria to understand heavy metal contaminations of core sediments as a result of urban sprawl and agricultural practices. The core sediment samples were collected from 0 to 60 cm depths using a corers, digested with a mixture o...
Article
Full-text available
Purpose This study sought to investigate the effects of organic amendments on the degradation of hydrocarbons and vegetative properties of Zea mays grown in crude oil-contaminated wetland soils of the Niger Delta, Nigeria. Methods Two soil types were investigated, namely, fadama soil (oxisol) and swamp forest soil (utisol). For each soil type, 48...
Article
This study concerns an assessment of indoor dust from printing press, car spray painting and metal design workshops, with the aim of evaluating the occupational risk arising from exposure to metals present in the dust. The levels of Cd, Pb, Cr, Ni, Cu, Co, Mn, Zn and Fe in the dust samples were quantified by means of atomic absorption spectrometry....
Article
Full-text available
Dusts from rural, semi-urban and urban areas of the Niger Delta, Nigeria were investigated for their polycyclic aromatic hydrocarbon (PAH) compositional patterns and sources, and risk of human exposure to PAHs in home dusts through non-dietary ingestion, inhalation and dermal contact pathways. The PAHs in the dust samples were extracted by ultra-so...
Article
Full-text available
The concentrations of Ʃ14 PCBs were determined, with the aid of gas chromatography-mass spectrometry (GC-MS), in transformer/turbine oils, soils, groundwater, and drainage water collected within a power plant in the Niger Delta of Nigeria. The Ʃ14 PCB concentrations in the transformer oils, drainage water, groundwater and soils ranged from 484 to 4...
Article
Full-text available
This study presents data on the levels and risk of human exposure to Cd, Pb, Cr, Ni, Cu, Co, Mn, Zn and Fe in some popular brands of household hygienic products (HHPs) available in Nigeria. The HHPs were digested with a mixture of HNO3, HCl and HClO4 in a ratio of 1:3:1 and the concentrations of the selected metals were quantified by atomic absorpt...
Article
Full-text available
The present study presents the results for the determination of the concentrations of the 16 USEPA polycyclic aromatic hydrocarbons (PAHs) in 30 samples of different types of vegetable oil (palm, groundnut, palm olein, soybean, cotton and castor seed oils) and shea butter in Nigeria. In addition, information is provided on the compositional pattern...
Article
The concentrations of 9 polybrominated diphenyl ethers (PBDEs) and 28 polychlorinated biphenyls (PCBs), including the 7 indicator PCBs and 12 dioxin-like PCBs, were determined in indoor dusts from electronic repair workshops in southern Nigeria. The study was aimed at providing information on the distribution and compositional patterns of PBDEs and...
Article
This study evaluates the characteristic levels, sources and risk of human exposure to polycyclic aromatic hydrocarbons (PAHs) in indoor dusts from electronic repair workshops in southern Nigeria. The dust samples were collected by gentle sweeping with a brush and dustpan, and subsequently dried and extracted with hexane/dichloromethane by ultrasoni...
Article
Polycyclic aromatic hydrocarbon (PAH) concentrations in edible muscles of two smoked fish species (Ethmalosa fimbriata and Gymnarchus niloticus) collected from different fish markets in the Niger Delta in Nigeria were determined. The aim of the study was to ascertain the PAH composition and consequent potential human health risk through dietary ing...
Article
Magnetite/Raphia farinifera nanocomposites of different magnetite to Raphia farinifera ratios of 2:1, 1:1, 1:2 and 1:3, designated as MRfA, MRfB, MRfC and MRfD respectively, were successfully prepared by chemical co-precipitation of magnetite precursors in a suspension of Raphia farinifera. The four nanocomposites, and the parent materials, Raphia...
Article
The concentrations of nine metals were measured by atomic absorption spectrophotometry in surface sediments of three coastal creeks, namely, the Ifie, Egbokodo and Ubeji creeks, in the Niger Delta of Nigeria, from August 2012 to January 2013. The aim of the study was to provide information on the spatial and seasonal distribution patterns, degree o...
Article
The levels of Cd, Pb, Cr, Ni, Cu, Co, Ba, Mn, Zn, Al and Fe were evaluated in indoor dusts from electronic workshops, cybercafés and offices in southern Nigeria. The study was aimed at providing information on the distribution patterns, and the associated risks that may arise from exposure of humans to these metals in indoor dusts from the three wo...
Article
Full-text available
The concentrations of eight metals (Cd, Pb, Cr, Ni, Cu, Mn, Zn and Fe) were measured in soils under different land use in an urban environment of the Niger Delta in Nigeria. The aim was to provide information on the potential ecological and human health risks associated with human exposure to metals in these soils. The potential ecological risk due...
Article
Full-text available
The concentrations of eleven metals (Cd, Pb, Cr, Ni, Cu, Co, Ba, Mn, Zn, Fe and Al) were measured in surficial sediments of the Forcados River and its estuary situated in the Niger Delta, Nigeria. The aim of the study was to provide information on the influence of seasonal changes on the distribution patterns and sources of these metals and the eco...
Article
Full-text available
The concentrations of the 16 US EPA polycyclic aromatic hydrocarbons (PAHs) were determined in the floodplain soils of the lower parts of the River Niger, Nigeria in 2013 and 2014 after recent flood waters had receded completely into the river channels. The aim of the research was to provide data on the spatiotemporal changes in the contamination l...
Article
Full-text available
The chemical fractionation of nine metals, Cd, Pb, Cr, Ni, Cu, Co, Ba, Mn and Zn, in soil profiles of the floodplain of the lower reaches of the River Niger in Nigeria, was investigated with a view to providing information on the forms, bioavailability and mobility of these metals in the soil profiles. The chemical forms of metals in the soil were...
Article
Full-text available
Concentrations of metals in household dust samples from rural, semi-urban and urban zones of the Niger Delta in Nigeria were measured during both 2009 and 2014 with the aim of providing information on changes in the concentrations, distribution patterns, sources and risks of metals in these zones. The concentrations of metals in the dust samples we...
Article
Full-text available
The concentrations of nine metals, namely, cadmium (Cd), lead (Pb), chromium (Cr), copper (Cu), cobalt (Co), nickel (Ni), manganese (Mn), zinc (Zn), and iron (Fe), were determined in 26 brands of hair care products including hair relaxers, conditioners and shampoos. The study was aimed at providing information on the possible risks arising from hea...
Article
Full-text available
The concentrations and compositional patterns of the United States Environmental Protection Agency (US EPA) 16 priority polycyclic aromatic hydrocarbons (PAHs) were determined in surface soils of an urban environment in the Niger Delta of Nigeria with a view to providing information on the sources, extent of contamination and human health risks of...
Article
Full-text available
The concentrations and compositional patterns of the USEPA 16 polycyclic aromatic hydrocarbons were investigated in three commercially available fish species, Chrysichthys nigrodigitatus, Cynoglossus senegalensis and Polydactylus quadratifilis, from the Bonny and Cross River systems in the eastern Niger Delta of Nigeria. The objective of the study...
Article
Full-text available
This article shows the concentrations of ten metals (Cd, Pb, Ni, Cr, Cu, Co, Fe, Mn, Zn and Al) measured in 30 different brands of nail polish in the Nigerian market in order to provide some relevant information on the safe levels of these products for consumers. The metal concentrations in the nail polish samples ranged from <0.15 µg/g Cd, <0.03 t...
Article
Full-text available
Spatial changes in the concentrations and compositional patterns of aliphatic hydrocarbons in sediments of the Forcados River in the Niger Delta, Nigeria, were studied. The concentrations and identities of the aliphatic hydrocarbons were determined by means of gas chromatography with flame ionization detection (GC/FID). The concentrations of alipha...
Article
Full-text available
The concentrations of nine metals (Cd, Pb, Ni, Cr, Co, Cu, Fe, Mn and Zn) were determined in lip sticks, lip glosses, lip balms, eye pencils, eyeliners, eye shadows, blushes, mascaras and face powders. The study was aimed at providing information on the risk associated with human exposure to metals in these facial cosmetic products. The concentrati...
Article
Full-text available
The concentrations of polycyclic aromatic hydrocarbons (PAHs) were determined in nine popular smoked fish species, (Clarias gariepinus, Parachana obscura, Heterotis niloticus, Pseudotolithus senegalensis, Gymnarchus niloticus, Ethmalosa fimbriata, Sardinella aurita, Scromber scrombus and Trachurus trachurus), in the Nigerian market by using gas chr...
Article
The concentrations of the US EPA 16 priority polycyclic aromatic hydrocarbons (PAHs) were measured in honey samples collected from different regions of Nigeria with a view to providing information on the extent of contamination, regional profiles, sources and risks of PAHs in this food type. The concentrations of the PAHs were determined by using g...
Article
Full-text available
In the study described in this article, the concentrations of metals (cadmium, copper, chromium, aluminum, lead, nickel, zinc, cobalt, manganese, and iron) in samples of some commonly used hair dyes and tattoo inks were determined with a view to providing information on the hazards associated with the use of these products. The concentrations of me...
Article
Full-text available
The concentrations of United State Environmental Protection Agency (U.S. EPA) 16 polycyclic aromatic hydrocarbons (PAHs) were measured in urban street dust with a view to understanding the potential risk of urban residents exposed to street dust, sources and distribution of the PAHs. The gas chromatography–mass spectrometry was used to measure the...
Article
Full-text available
The concentrations of the 16 priority polycyclic aromatic hydrocarbons (PAHs) in tea infusions made of water and local gin (alcohol) were investigated with a view to providing information on the profiles and health hazards associated with these two common Nigerian methods for tea consumption. The water-based tea infusion was prepared by submerging...
Article
Full-text available
The spatial and seasonal changes in the distribution, composition, and concentrations of aliphatic hydrocarbons were investigated in sediment cores of Ubeji, Ifie, and Egbokodo Creeks in the Niger Delta, Nigeria. A total of 222 sediment core samples were collected during the wet season (August 2010) and the dry season (January 2011). The samples we...
Article
Full-text available
The concentrations and profiles of polycyclic aromatic hydrocarbons (PAHs) were investigated in 29 commercial brands of candies and chocolates commonly consumed in Nigeria with a view to providing information on the risks associated with the consumption of these products. The measurements were performed by means of gas chromatography-mass spectrome...
Article
Full-text available
The total concentrations of the σ16 polycyclic aromatic hydrocarbons (PAHs) were examined in some samples of baked ready-to-eat foods (cake, sausage roll, meat pie, burger, and bread) with a view to provide information on the hazards associated with the consumption of these hawked street foods. The measurements were performed by using a gas chromat...
Article
Full-text available
The concentration of metals, cadmium (Cd), lead (Pb), nickel (Ni), chromium (Cr), copper (Cu), cobalt (Co), iron (Fe), manganese (Mn), and zinc (Zn) was measured in selected samples of honey in Nigeria with a view to providing information on the regional concentration profile of metals in these honeys. The honey samples were digested with a mixture...
Article
Full-text available
Polycyclic aromatic hydrocarbons (PAHs) seasonal variation and sources in Ubeji, Ifie, and Egbokodo Creeks of the Niger Delta, Nigeria, were predicted using diagnostic ratios (DRs) of parent PAHs (Phe/Phe + Ant; Flu/Flu + Pyr; BaA/BaA + Chry, and Ind/Ind + BghiP) and principal component analysis (PCA). A total of 222 sediment core samples were coll...
Article
Full-text available
The concentrations of metals (Cd, Pb, Ni, Cr, Cu, Co, Fe, Mn, and Zn) were determined in selected brands of canned mackerel, sardine, and tuna in Nigeria with a view to providing information on the dietary intakes of metals and lifelong health hazards associated with the consumption of these products. The concentrations of metals were determined by...
Article
Full-text available
The concentrations and profiles of polycyclic aromatic hydrocarbons (PAHs) in 10 popular fish species in the Nigerian market were determined with a view to providing information on the health hazards associated with the consumption of these fish species. The concentrations of PAHs were measured by gas chromatography–mass spectrometry after extracti...
Article
Full-text available
Concentrations of 16 priority polycyclic aromatic hydrocarbons (PAHs) were determined in 40 brands of biscuits in the Nigerian market. The analyses were performed by gas chromatography-flame ionisation detection (GC-FID) after Soxhlet extraction of the sample with hexane/dichloromethane and clean-up of the extract. The concentrations of Σ16 PAHs in...
Article
Full-text available
Concentrations and profiles of polycyclic aromatic hydrocarbons were determined in some popular commercial brands of tea-, coffee-, and cocoa-based food drinks in Nigeria by gas chromatograph-flame ionization after hexane/dichloromethane extraction and clean up. The concentrations of the ∑16 Polycyclic aromatic hydrocarbons in these products ranged...
Article
Full-text available
Concentrations and profiles of polycyclic aromatic hydrocarbons (PAHs) were determined in selected popular brands of canned fish (mackerel, sardine, and tuna) consumed in Nigeria with a view to providing information on the health risk associated with consumption of these products. The concentrations of PAHs were measured by gas chromatography equip...
Article
Full-text available
Concentrations and profile of polycyclic aromatic hydrocarbons(PAHs) and metals (Cd, Pb, Ni, Cr, Fe and Mn) were determined in selected brands of canned maize in the Nigeria market with a view to providing information on the hazards associated with the consumption of these products. The measurement of the concentrations of PAHs was carried out...
Article
Full-text available
The concentrations of the USEPA 16 priority polycyclic aromatic hydrocarbons (PAHs) in soils of the floodplain of the lower reaches of River Niger, Nigeria, were investigated following the Lagdo Dam flood disaster of 2012. The aim was to provide information on the extent of contamination, sources, and risks of PAHs in these soils. The concentration...
Article
Full-text available
The concentrations of nine metals (Cd, Cr, Mn, Pb, Cu, Zn, Fe, Ni and Co) were measured in selected brands of chewing gums, peppermints and sweets in Nigeria with a view to providing information on the concentration profiles and dietary intakes of metals, and the life-long health hazards associated with the consumption of these food items. The meta...