Leaf accumulation of trace elements and polycyclic aromatic hydrocarbons (PAHs) in Quercus ilex L.

Nicola, Flavia De; Maisto, Giulia; Prati, Maria Vittoria; Alfani, Anna

doi:10.1016/j.envpol.2007.08.008

Cited by 141 publications

(73 citation statements)

References 45 publications

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“…These aerosols can be deposited on soil and absorbed by vegetables, or alternatively deposited on leaves and fruits and then absorbed. High accumulation of Pb, Cr and Cd in leafy vegetables due to atmospheric depositions has been reported by Voutsa et al and De Nicola et al [2,6]. The levels of heavy metals (Zn, Mn, Cu and Pb) in vegetable (Talinum triangulare) collected from selected markets of bayelsa, Nigeria were found to be high.…”

Section: Introductionmentioning

confidence: 83%

Evaluation of Heavy Metals Content and Human Health Risk Assessment via Consumption of Vegetables from Selected Markets in Bayelsa State, Nigeria

Patrick-Iwuanyanwu¹,

Chioma²

2017

Biochem Anal Biochem

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The aim of this study was to evaluate the concentration of heavy metals namely (Lead (Pb), Nickel (Ni), Cadmium (Cd) and Chromium (Cr)) via consumption of vegetables from selected markets in Bayelsa State, Nigeria. Sixteen different vegetable samples comprising of Bitter leaves (Vernonia amygdalina), Curry leaves (Ocimum basilicum), Scent leaves (Ocimum gratissmum), Water Leaves (Talinum triangulare), Uziza (Piper guineese), Fluted pumpkin (Telferia occidetalis), Okazi (Gnetum africanum), and Okra (Abelmoschus esculentus) were digested and analyzed for heavy metals using Solar Thermo Elemental Flame Atomic Absorption Spectrophotometer (STEF-AAS). Results obtained were used to estimate the health risk of these heavy metals via consumption of the vegetable samples. The results from the study showed that the heavy metal concentration ranged between 0.016 to 1.387 mg/kg, 0.028 to 1.487 mg/ kg, 0.093 to 3.625 mg/kg and 0.893 to 2.478 mg/kg for Pb, Cd, Ni and Cr respectively. The concentration of Pb was below permissible limit recommended by WHO/FAO. The concentration of Cd in O. gratissimum and T. triangulare from both markets exceeded the permissible limit recommended by WHO/FAO and EC/CODEX. The concentration of Ni in O. gratissimum and T. occidetalis from Kpanshia market exceeded the permissible limit recommended by NAFDAC while Cr from both markets exceeded permissible limit recommended by European community/CODEX. The Hazard Index (HI) values for all the samples under study were greater than (>) 1 which indicates that there is potential health risk to those consuming these vegetables except A. esculentus in Kpanshia market for adults which was less than (<) 1. The Target Hazard Quotient (THQ) concentrations of Pb in O. gratissimum, T. occidetalis and G. africanum from Kpanshia market and O. basilicum from Swali market, Cd in T. triangulare and O. gratissimum from both markets and Ni in T. occidetalis from Swali market for children only were all greater than 1 which indicates level of concern that the population may be at risk of either Pb, Ni or Cd toxicity. The Estimated Daily Intake (EDI) concentrations of Pb in O. gratissimum, T. occidetalis and G. africanum all from Kpanshia market, Cd in T. triangulare from both markets, and Ni in all the samples from both markets were all above the permissible tolerable daily intake (PTDI) limit as recommended by EFSA (European Food and Safety Agency) meaning that those who consume this product may be at risk. The results from the present study tends to suggest that consumption of vegetables from both markets under study in Bayelsa state could be one of the contributory factors to the heavy metal burden among consumers due to their frequent consumption.

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Section: Introductionmentioning

confidence: 83%

Evaluation of Heavy Metals Content and Human Health Risk Assessment via Consumption of Vegetables from Selected Markets in Bayelsa State, Nigeria

Patrick-Iwuanyanwu¹,

Chioma²

2017

Biochem Anal Biochem

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“…From a morphological point of view, the leaves of L. japonicum, L. nobilis and Elaeagnus x ebbingei, that are the species with the highest concentrations of 5e6 rings PAHs, are quite different and it is reported that there is a close relationship between leaf anatomical structures and PAHs contents in plants (De Nicola et al, 2008). Moreover, cuticular and epicuticular waxes play an important role in the sorption of lipophilic compounds in leaves (Simonich and Hites, 1994).…”

Section: -6 Rings Pah Concentration Vs Time In Cairmentioning

confidence: 99%

PAHs accumulation on leaves of six evergreen urban shrubs: A field experiment

Fellet

Poščić

Licen

et al. 2016

Atmospheric Pollution Research

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“…These aerosols can be deposited on soils and absorbed by vegetables, or alternatively deposited on leaves and fruits and then absorbed. Voutsa et al ( 1996) and De Nicola et al ( 2008) reported in their work high accumulation of Pb, Cr and Cd in leafy vegetables due to atmospheric depositions. The levels of heavy metals such as zinc (Zn), manganese (Mn), copper(Cu) and lead(Pb) in Talinum triangulare in dumpsites in Lagos, Nigeria were found to be high due to vehicular traffic emission.…”

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confidence: 99%

Spatial variation in Heavy Metal residue in <i>Corchorus olitorious</i> cultivated along a Major highway in Ikorodu- Lagos, Nigeria

Sanyaolu¹,

Sanyaolu²,

Fadele³

2011

Journal of Applied Sciences and Environmental Management

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This study focused on heavy metals (Lead (Pb), Zinc (Zn) and Cadmium (Cd)) contamination in the vegetable Corchorus olitorius (C.olitorius) leaves cultivated along a major road. Samples the vegetable, C. olitorius leaves) were collected from two sites, one of which is located on a major highway and the other remotely located from any form of industrial activity and which served as the control site. These samples were collected at distances of 10, 20 and 30m from the roadside and analyzed for Pb, Zn and Cd content by atomic absorption spectrophotometer. The mean concentration of heavy metals in the studied vegetable with effect to distance from the road was compared with the permissible values given by WHO/FAO. Mean concentration of heavy metal in C. olitorius leaves ranged from 0.013 to 0.310mg/kg, 2.500 to 4.850mg/kg and 0.063 to 0.205mg/kg at 10m, 20m and 30m distances respectively from the road. In all cases, it was observed that the closer the plants were to the road, the higher the heavy metal burden. The result of this study shows that, while the concentration of heavy metals in C. olitorius leaves from the control site remains constant, (i.e. showing no sign of contamination) the concentration of heavy metals in C. olitorius leaves cultivated along major road decreased with an increasing distance from the road. @JASEM

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Leaf accumulation of trace elements and polycyclic aromatic hydrocarbons (PAHs) in Quercus ilex L.

Cited by 141 publications

References 45 publications

Evaluation of Heavy Metals Content and Human Health Risk Assessment via Consumption of Vegetables from Selected Markets in Bayelsa State, Nigeria

Evaluation of Heavy Metals Content and Human Health Risk Assessment via Consumption of Vegetables from Selected Markets in Bayelsa State, Nigeria

PAHs accumulation on leaves of six evergreen urban shrubs: A field experiment

Spatial variation in Heavy Metal residue in <i>Corchorus olitorious</i> cultivated along a Major highway in Ikorodu- Lagos, Nigeria

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