Heavy Metals in Soils and Tomatoes Grown in Urban Fringe Environment in Asaba, Delta State, Nigeria

Bassey, Francisca I.; Iwegbue, Chukwujindu M. A.; Obi-Iyeke, Grace E.; Tesi, Godswill O.; Rotu, A.R.; Gobe, O.A.; Tsafe, A. I.

doi:10.4314/njbas.v22i1.5

Cited by 18 publications

(17 citation statements)

References 15 publications

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“…Transfer coefficient values show both the biological availability of plants to absorb more or less heavy metal and the amount of metal retained by the soil. Low transfer coefficients indicate that the metals are sown in soil colloids, and high transfer coefficients show the presence of large metals in a particular plant species and indicate that the plant can be successfully used in soil remediation [9].…”

Section: Transfer Coefficients Of System Soil-plantmentioning

confidence: 99%

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Researches on the accumulation and transfer of heavy metals in the soil in tomatoes -Solanum lycopersicum

et al. 2019

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Heavy metals in contaminated soils have benefited from a considerable attention due to the possible risks for the human body. The current study has investigated the accumulation and transfer coefficient for three heavy metals (Cu, Pb, Zn) found in the contaminated soil with three concentrations (c1=1.5%, c2=3.0%, c3=4.5%, c4=6.0%), obtained by mixing the three metals, in the tomato fruit. The highest accumulation in the tomato fruits was recorded for zinc, then copper and the smallest for lead, for all four concentrations used. The transfer coefficient decreases as the concentration of heavy metals increases, so that for high heavy metals concentrations, the values of the transfer coefficient are very low, and for small heavy metals concentrations in the soil, the values for the transfer coefficient are higher. The assessment of accumulation and transfer of heavy metals in the fruits of tomatoes grown in the contaminated soil has concluded that all concentrations of the copper, lead and zinc mix have shown a low risk for human consumption.

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Section: Transfer Coefficients Of System Soil-plantmentioning

confidence: 99%

“…Also, in paper [9], was analyzed and evaluated both concentrations of heavy metals in the soil and the fruit of tomato. Plants were grown in places with soils contaminated with metals, and the results showed that there was a large transfer of soil metals into the plants.…”

Section: Introductionmentioning

confidence: 99%

Researches on the accumulation and transfer of heavy metals in the soil in tomatoes -Solanum lycopersicum

et al. 2019

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“…Samples: Soil samples were pretreated following the methods described by Bassey et al (2014). Heavy metals (Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn) concentrations were carried out using Atomic Absorption Spectrophotometer (Perkin Elmer AA Analyst 800 series Graphite Furnace AA).…”

Section: Heavy Metals and Physicochemical Analysis Of Soilmentioning

confidence: 99%

Heavy metal levels, physicochemical properties and microbial diversity of soil matrix from university solid waste collection sites in Benin City, Nigeria

Igbinosa¹,

Aisien²

2018

Journal of Applied Sciences and Environmental Management

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“…Heavy metals are found naturally in the earth, and become concentrated as a result of human activities such as industrial production, mining, agriculture and transportation [1,2]. These metals have both positive and negative roles in human life [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…These metals have both positive and negative roles in human life [1][2][3][4]. For instance, heavy metals such as copper (Cu), chromium (Cr), cobalt (Co), manganese (Mn) and zinc (Zn) are essential micronutrients for higher animals and for plant growth [5].…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Levels in Soil, Tomatoes and Selected Vegetables from Morogoro Region, Tanzania

Hellen¹,

Othman²

2016

IJEMA

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Abstract:The concentrations of heavy metals of Cd, Cu, Cr, Pb and Zn were determined in cauliflower (Brassica oleracea L.var. butrytis L.), carrot root (Daucus carota L.), tomato fruit (Lycopersicon esculenta Mill.), onion bulb (Allium cepa L.) and leafy cabbage (Brassica oleracea var. capital capitata L.), and the respective soils from Morogoro region, Tanzania. The accumulated heavy metals were quantified and levels compared to FAO/WHO (2003) and TZS (2007) safety limits for such produce. The methodology involved random sampling, extraction of the metals from the tomatoes, vegetables and soil and determination of heavy metals by using ICP-OEC and GFAAS. The results showed that levels of Cd, Cu, Cr, Pb and Zn at 90% of the sites in vegetables and tomatoes were above the FAO/WHO limit. The mean concentrations of Cd, Cr, Pb and Zn in all vegetables and tomatoes except Cu were also found to be above this limit therefore advocating a health risk for consumers. Levels of heavy metals in the soils were below the limits of the Tanzanian standard (TZS 972: 2007) and were lower than levels found in vegetables. The bioconcentration factor for Cu recorded 1 for tomatoes and cabbage at Towelo and below 1 for tomatoes and cauliflowers from Mgeta. Cd in onions at Mgeta as well recorded below 1. However, the bioconcentration factor for these heavy metals in vegetables and tomatoes in all other sites were found to be above 1 in all heavy metals an indication of high uptake of heavy metals in the vegetables and tomatoes from the soil. These results suggest that such vegetables and tomatoes might place the consumers at health risk; therefore they are not safe for consumption in their raw state.

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Heavy Metals in Soils and Tomatoes Grown in Urban Fringe Environment in Asaba, Delta State, Nigeria

Abstract: Pb, Cu, Ni, Zn, Cr, Mn and Fe in soils and tomato leaves and fruits from peri-urban environments in Asaba, Delta State were determined after acid digestion by using atomic absorption spectrophotometry (AAS). The concentrations of metals in the soil samples were 10.

Cited by 18 publications

References 15 publications

Researches on the accumulation and transfer of heavy metals in the soil in tomatoes -Solanum lycopersicum

Researches on the accumulation and transfer of heavy metals in the soil in tomatoes -Solanum lycopersicum

Heavy metal levels, physicochemical properties and microbial diversity of soil matrix from university solid waste collection sites in Benin City, Nigeria

Heavy Metal Levels in Soil, Tomatoes and Selected Vegetables from Morogoro Region, Tanzania

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