Heavy metals in vegetables and potential risk for human health

Guerra, Fernando; Trevizam, Anderson Ricardo; Muraoka, Takashi; Marcante, Nericlenes Chaves; Canniatti‐Brazaca, Solange Guidolin

doi:10.1590/s0103-90162012000100008

Cited by 249 publications

(177 citation statements)

References 16 publications

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“…Similarly, these levels are higher than the results found on tomatoes in other countries on tomatoes: Karavoltsos et al [33] in Greece reported a total Cd content of 0.0188 ppm, Mohamed et al [34] in Egypt reported 0.01 ppm for total Cd and 0.26 ppm for total Pb. Likewise Guerra et al [35] in São Paulo in Brazil found a total Cd content of 0.02 to 0.04 ppm. Another study reported by Radwan and Salama [36] in Egypt shown a value of 0.01 ppm for total Pb.…”

Section: Resultsmentioning

confidence: 84%

Nutritional Composition, Physical Characteristics and Sanitary Quality of the Tomato Variety Mongol F1 from Burkina Faso

Oboulbiga¹,

Parkouda²,

Sawadogo-Lingani³

et al. 2017

FNS

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Tomato (Lycopersicon esculentum Mill) is quantitatively the highest vegetable consumed in Burkina Faso. The objective of this study was to evaluate the physico-chemical, nutritional characteristics, and sanitary quality of the tomato variety Mongal F1 from different production sites. Twenty-eight (28) samples of Mongal F1 fresh tomatoes were collected from 28 producers at three different localities of Ouahigouya, Loumbila and Ouagadougou. The physico-chemical and nutritional characteristics were determined by standardized methods and the traces metallic elements by atomic absorption spectrophotometry. The results revealed a degree brix varying from 4.07˚ to 5.50˚ and a pH ranging from 3.71 to 4.08 corresponding to a total acidity of 0.39% to 0.55% citric acid equivalents. The moisture content, the ash content, the total carbohydrates content, the reducing carbohydrates content, the lipids content and the protein content were ranged from 95.09% to 96.17%, 9.25% to 10.60%, 47.00% to 53.43%, 30.03% to 41.21%, 3.04% to 7.71% and 17.09% to 25.03% respectively. The results of the trace metals showed a high accumulation of total cadmium from 0.11 to 0.22 ppm, of total lead of 1.15 to 1.27 ppm and arsenic total of 0.19 to 0.20 ppm. The results proved that environmental conditions influence the quality of the tomato Mongal F1. Detection of trace elements in the tomato fruits suggests that a better production practices are needed.

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Section: Resultsmentioning

confidence: 84%

Nutritional Composition, Physical Characteristics and Sanitary Quality of the Tomato Variety Mongol F1 from Burkina Faso

Oboulbiga¹,

Parkouda²,

Sawadogo-Lingani³

et al. 2017

FNS

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“…Rape and potatoes sold by supermarkets, had high concentrations of lead which was above the permissible limit and therefore regarded unsafe for human consumption. Other studies (Guerra et al 2012;Harmanescu et al 2011;Abbas et al 2010;Yang et al 2011) obtained ranges; 470 -1660 µg/Kg, 4.5 -21.8 mg/Kg, 18 -150 µg/Kg and 6 -16 mg/Kg in Brazil, Nigeria, Pakistan and China respectively.…”

Section: Leadmentioning

confidence: 88%

“…Cadmium is a hazardous element which has been associated with various complications like bone de-calcification, renal, membrane and DNA damages (Guerra et al 2012). Research studies have found that vegetables contribute about 70% cadmium intake by humans, varying according to the level of consumption (Wagner, 1993in Rivera-becerril et al 2002.…”

Section: Cadmiummentioning

confidence: 99%

Concentrations of Some Trace Elements in Vegetables Sold at Maun Market, Botswana

Bati¹,

Mogobe²,

Masamba³

2016

JFR

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Contamination of vegetables with toxic metals is one of the most important contributing factors to ill health throughout the world, more so because vegetables are considered essential for human health and their consumption is highly recommended by health authorities. The aim of this study was to determine the concentrations of selected essential elements (Fe, Cu, Mn, Mo, Zn) and toxic elements (As, Cd, Cr, Pb) in common vegetables sold for human consumption in supermarkets and open market of Maun village, Botswana. Five vegetables (cabbage, rape, tomatoes, onions and potatoes) were purchased from different selling points, washed with de-ionised water, cut into small pieces and digested with aqua regia on a block digester, following the US. EPA method 200 -7 and analysed for metal content using Inductively Coupled Plasma -Atomic Emission Spectroscopy (ICP-AES). The results showed that concentrations of essential and toxic metals varied with the type of vegetable and also with the market category (supermarket or street vendor). The highest concentration of essential elements was obtained from cabbage with a Zn concentration of 135.4mg/Kg and the lowest was from onion with a Mo concentration of 1.35mg/Kg. For toxic elements the highest concentration was obtained from rape vegetable with a Pb concentration of 4.73mg/Kg and the lowest from the same vegetable with Cr concentration below the detection limit. Also observed was that leafy vegetables, especially cabbage, had the highest concentrations of most trace metals. It was concluded that vegetables sold in Maun had sufficient levels of essential elements but also some had high concentrations of toxic metals. We thus recommend consumption of vegetables from the studied markets with reduced frequency to avoid metal poisoning.

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“…Researchers have demonstrated its toxic effects on plants (Aery & Rana, 2003;Hasan et al, 2007). In a recent study, Guerra et al (2012) found that Cd did not exceed the critical limit (1.0 mg kg -1 , fresh weight) for human consumption in a set of vegetables samples collected at a distribution center in the city of São Paulo, Brazil.…”

Section: Introductionmentioning

confidence: 98%

Transfer of cadmium and barium from soil to crops grown in tropical soils

Melo

Silva

Alleoni

2014

Rev. Bras. Ciênc. Solo

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SUMMARYPhytotoxicity and transfer of potentially toxic elements, such as cadmium (Cd) or barium (Ba), depend on the availability of these elements in soils and on the plant species exposed to them. With this study, we aimed to evaluate the effect of Cd and Ba application rates on yields of pea (Pisum sativum L.), sorghum (Sorghum bicolor L.), soybean (Glycine max L.), and maize (Zea mays L.) grown under greenhouse conditions in an Oxisol and an Entisol with contrasting physical and chemical properties, and to correlate the amount taken up by plants with extractants commonly used in routine soil analysis, along with transfer coefficients (Bioconcentration Factor and Transfer Factor) in different parts of the plants. Plants were harvested at flowering stage and measured for yield and Cd or Ba concentrations in leaves, stems, and roots. The amount of Cd accumulated in the plants was satisfactorily evaluated by both DTPA and Mehlich-3 (M-3). Mehlich-3 did not relate to Ba accumulated in plants, suggesting it should not be used to predict Ba availability. The transfer coefficients were specific to soils and plants and are therefore not recommended for direct use in risk assessment models without taking soil properties and group of plants into account.Index terms: soil pollution, transfer factor, bioconcentration factor. RESUMO: TRANSFERÊNCIA DE CÁDMIO E BÁRIO EM PLANTAS CULTIVADAS EM SOLOS TROPICAIS

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Heavy metals in vegetables and potential risk for human health

Cited by 249 publications

References 16 publications

Nutritional Composition, Physical Characteristics and Sanitary Quality of the Tomato Variety Mongol F1 from Burkina Faso

Nutritional Composition, Physical Characteristics and Sanitary Quality of the Tomato Variety Mongol F1 from Burkina Faso

Concentrations of Some Trace Elements in Vegetables Sold at Maun Market, Botswana

Transfer of cadmium and barium from soil to crops grown in tropical soils

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