Presence of heavy metals in fruits and vegetables: Health risk implications in Bangladesh

Shaheen, Nazma; Irfan, Nafis Md.; Khan, Ishrat Nourin; Islam, Samiul; Islam, Md. Saiful; Ahmed, Md. Kawser

doi:10.1016/j.chemosphere.2016.02.060

Cited by 382 publications

(235 citation statements)

References 27 publications

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“…Metallic elements are divided into two groups: essential elements such as iron and calcium, and toxic elements such as mercury, lead, and arsenic [12]. Ullah [13] defined heavy metals as the generic term for metallic elements which have density five times greater than density of water, but as stated by Duffus [14], the term "heavy metals" has been given wide range of meaning by many authors, and it has never been defined by any authoritative body such as IUPAC.…”

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confidence: 99%

Assessment of Heavy Metals on Occupationally Exposed Workers from Hair Analysis

et al. 2017

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The use of human hair as a tool in assessing changes and abnormalities in human bodies has been increasing for last decades since it may reflect the health status or environmental condition of habitation or working place of individuals as well as population groups. Compared to other body tissue or fluids, hair provides an ease of elemental analysis especially in reflecting the long-term exposure. This research was conducted to determine the elemental content especially heavy metals, since they are bioaccumulated in human body organs and impact human health, in hair of workshop workers and traffic services officers as exposed groups and its comparison with control group and references data for assessing of occupational exposure. Thirty-five automotive workshop workers and 32 traffic services officers' hair specimens were collected in Bandung, while hair specimens of the control group were collected from 43 healthy individuals. The elemental concentrations in hair specimen were analyzed using neutron activation analysis (NAA) for mercury and chromium, and atomic absorption spectrometry (AAS) for lead and arsenic. The accuracy of the method was evaluated using GBW 07601 human hair certified reference material (CRM) and it was found to give good results in accordance with the certificate values. It was found that chromium, lead, and arsenic hair concentration in exposed groups (0.88, 10.7, and 0.051 mg/kg, respectively) were higher than in control group (0.27, 4.52, and 0.045 mg/kg, respectively), while mercury hair concentration of traffic services officers were higher than control group but mercury hair concentration of automotive workshop workers were lower than in control group (1.41 mg/kg). The t-test statistical results shown that mercury concentrations in one exposed group did not differ significantly from the control, but other exposed groups showed otherwise. The level of mercury in hair is strongly attributed not only to environmental exposure, but also to lifestyle and dietary habits, while t-test statistical results of chromium and lead differ significantly with p value < 0.05. These results indicate that heavy metal hair concentrations were well quantified to show the abnormalities of elemental concentration in human hair for evaluating the occupational exposure.

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confidence: 99%

Assessment of Heavy Metals on Occupationally Exposed Workers from Hair Analysis

et al. 2017

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“…Other studies in the literature have reported Cu levels in different types of fruits, such as banana (0.946 mg/kg), jackfruit (11.78 mg/kg) and mango (7.891 mg/kg). 26 Previous studies have reported a concentration of 21.5 mg/kg Cu in açaí 5 and 6.8 mg/kg in bacuri-azedo. 27 For Fe, the concentration determined in the fruits evaluated in this study varied from 35.88-60.45 mg/kg.…”

Section: Total Concentration Of Cu Fe and Mn In Fruits By Faasmentioning

confidence: 99%

Evaluation of in vitro Bioaccessibility of Copper, Iron and Manganese in Amazonian Fruits

Alves¹,

Nunes²,

Dantas³

2017

Rev. Virtual Quim.

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Abstract:The bioaccessibility of Cu, Fe and Mn in Amazonian fruits (açaí, white açaí, bacuri and tucumã) was evaluated in this study using in vitro methods. Flame atomic absorption spectrometry (FAAS) was used for total metal quantification, and graphite furnace atomic absorption spectrometry (GFAAS) was used to quantify the metals in the simulated gastric and gastrointestinal digestions. The Cu concentration in the fruits tested varied between 8.59 and 14.99 mg/kg. For Fe, the concentration in the samples ranged from 35.88 to 60.45 mg/kg. The lowest and highest concentrations of Mn were found in bacuri (5.01 mg/kg) and white açaí (709.93 mg/kg), respectively. In the açaí, white açaí and tucumã samples, the bioaccessible percentage of Cu was higher than the human can absorb. The available Fe value determined in the gastric simulation was similar to that observed in the gastrointestinal simulation, varying from 42.95 to 56.22%. The bioaccessible Mn fraction varied between 28.72 and 68.78% in the gastric simulation and between 26.81 and 64.85% in the gastrointestinal simulation. This study contributes to our knowledge of the actual amount of Cu, Fe and Mn absorbed by ingestion of the studied fruits.Keywords: Bioaccessibility; Amazonian fruits; inorganic elements; FAAS, GFAAS. ResumoA bioacessibilidade de Cu, Fe e Mn em frutas da Amazônia (açaí, açaí branco, bacuri e tucumã) foram avaliadas neste estudo utilizando métodos in vitro. A espectrometria de absorção atômica com chama (FAAS) foi utilizada para a quantificação total de metal e a espectrometria de absorção atômica em forno de grafite (GF AAS) foi utilizada para quantificar os metais nas digestões gástricas e gastrointestinais simuladas. A concentração de Cu nos frutos testados variou entre 8,59-14,99 mg/kg. Para Fe, a concentração nas amostras variou de 35,88-60,45 mg/kg. As menores e maiores concentrações de Mn foram encontradas nos bacuri (5,01 mg/kg) e açaí branco (709,93 mg/kg), respectivamente. Nas amostras de açaí, açaí branco e tucumã, o percentual bioaccessível de Cu foi maior do que o ser humano pode absorver. O valor de Fe disponível na simulação gástrica foi semelhante ao observado na simulação gastrointestinal, variando de 42,95 a 56,22%. A fração Mn bioacessível variou entre 28,72-68,78% na simulação gástrica e 26,81-64,85% na simulação gastrointestinal. Este estudo contribui para o conhecimento da quantidade real de Cu, Fe e Mn absorvidos pela ingestão dos frutos estudados.

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“…These metals cannot be removed from the body and reach toxic values over time. 3,4 Although some heavy metals such as copper, iron, selenium, and zinc are essential at certain concentration levels to maintain the living metabolism, when taken at high concentrations they may cause toxic effects. 5 For example, a trace quantity of copper is necessary for human health since it is a cofactor of some important enzymes and plays an important role in carbohydrate and lipid metabolism.…”

Section: 2mentioning

confidence: 99%

Separation and preconcentration of Pb(II) and Cu(II) ions via carrier element-free coprecipitation using an acetohydrazide derivative

Tümay¹,

Yazar²,

Özdeş³

et al. 2016

Turk J Chem

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A new method based on the combination of carrier element-free coprecipitation and flame atomic absorption spectrometric determination has been investigated for simultaneous separation and preconcentration of Pb(II) and Cu(II) ions in some environmental solid and liquid samples. The 2-{3-(4-methylbenzyl)-4-[2-(1H-indol-3-yl)ethyl]-5-oxo-4,5dihydro-1H-1,2,4-triazol-1-yl} -N'-(phenylmethylene) acetohydrazide (MITA) was utilized as an organic coprecipitating agent without using a carrier element for coprecipitation of the analyte ions. The effects of experimental conditions including aqueous solution pH, MITA quantity, sample volume, standing time, and centrifugation rate and time were investigated in detail and optimized. The influences of some foreign ions were also evaluated on the quantitative recoveries of the analyte ions. The preconcentration factors were 125 for both analyte ions. The detection limits were 1.32 µ g L −1 and 0.47 µ g L −1 for Pb(II) and Cu(II) ions, respectively, and the relative standard deviations (RSDs) were lower than 4% for both analyte ions. After the accuracy of the method was checked, it was applied to sea and stream water as liquid samples and waste tea and tobacco as solid samples to determine the levels of Pb(II) and Cu(II) ions.

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Presence of heavy metals in fruits and vegetables: Health risk implications in Bangladesh

Cited by 382 publications

References 27 publications

Assessment of Heavy Metals on Occupationally Exposed Workers from Hair Analysis

Assessment of Heavy Metals on Occupationally Exposed Workers from Hair Analysis

Evaluation of in vitro Bioaccessibility of Copper, Iron and Manganese in Amazonian Fruits

Separation and preconcentration of Pb(II) and Cu(II) ions via carrier element-free coprecipitation using an acetohydrazide derivative

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