Metal levels in some refuse dump soils and plants in Ghana

Agyarko, Kofi; Darteh, E.; Berlinger, Balázs

doi:10.17221/13/2010-pse

Cited by 39 publications

(32 citation statements)

References 11 publications

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“…HM concentrations in these plants are often considerably elevated due to their high ability to absorb them from soil, water or air (Alvarez et al 2003;Gonzalez and Gonzalez-Chavez 2006;Li and Yang 2008;Arnetoli et al 2008;Tian et al 2009;Agyarko et al 2010;Mudgal et al 2010;Antonijević et al 2012). Usually, these are wild-growing species, which have developed successful strategies for HM tolerance.…”

Section: Introductionmentioning

confidence: 99%

Heavy metal contamination of topsoil and parts of peach-tree growing at different distances from a smelting complex

Dimitrijević

Nujkić

Alagić

et al. 2015

Int. J. Environ. Sci. Technol.

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This paper reports on the content of six heavy metals (Cu, Zn, Pb, As, Cd and Ni) in topsoil and parts of peach-tree, sampled from eight locations in urban-industrial and rural areas located at various distances from the Bor copper smelter, Serbia. Topsoil samples were analyzed for physical and chemical properties, while the content of heavy metals in all samples was determined using an inductively coupled plasma optical emission spectrometer (iCAP 6000). The enrichment factor showed that the topsoil was enriched by heavy metals (except for nickel), at all locations. An extreme enrichment by copper was found at six locations (EF soil = 86-101). The enrichment factors of heavy metals in peach-tree parts were highest in roots and leaves. The most extreme enrichment by copper was found to occur in the roots (EF plant = 68.80) from the flotation tailing pond. Among the studied heavy metals, only the content of zinc was within normal limits for plants. Calculated biological concentration factors (BCF \ 1) indicated a limited soil-to-root transfer of heavy metals. Moreover, the leaf/branch ratio as well as numerous and very strong Pearson's correlations between elements in the peach-tree parts confirmed that leaves represent the best indicators of pollution originating from atmospheric deposition. Principal component analysis identified sources of heavy metals in soil and parts of peach-tree.

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Section: Introductionmentioning

confidence: 99%

Heavy metal contamination of topsoil and parts of peach-tree growing at different distances from a smelting complex

Dimitrijević

Nujkić

Alagić

et al. 2015

Int. J. Environ. Sci. Technol.

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“…Contamination of water and soils with heavy metals is of public health significance. Most metals do not undergo microbial or chemical degradation and their total concentration in soils persist for a long time after introduction (Agyarko et al, 2010). Their persistence in soil may lead to increase up-take by plants and vegetables grown in the area and subsequent risk of transfer through the food chain to humans (Ubwa et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

Physicochemical and Mineral Compositions of Wastewater and Soils from Two Selected Abattoirs in Warri, Delta State, Nigeria

Sunday¹,

Henrietta²,

Moru³

2017

ijSciences

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This study was carried out to evaluate the physicochemical and mineral compositions of abattoir wastewater and contaminated soils from two selected abattoirs in Warri, Delta State and therefore to assess the impact of abattoir activities on the surrounding soil environment. The pH values of the abattoir wastewater (8.2 ± 0.04 and 8.0 ± 0.14) and contaminated soil (7.28 ± 0.31 and 7.75 ± 0.21) were higher than the control at 6.4 ± 0.01 and 6.6 ± 0.01 (control water) and 5.4 ± 0.02 and 4.2 ± 0.01 (uncontaminated soil). The BOD and COD values for abattoir A wastewater (110 ± 2.82 mg/L and 2.64 ± 2.82 mg/L) and abattoir B (398.5 ± 2.10mg/L and 351 ± 1.41 mg/L) were higher than the WHO standard.

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“…It should be noted that the levels of heavy metals in human excreta are related to the food consumption. Vegetables eaten raw often have high levels of heavy metals; the main sources known are soils and organic fertilizers [23] [24]. Based on our results, the use of urine-based fertilizer does not represent a potential risk linked to heavy metals, since their contents are less than the allowable values of irrigated water in Burkina Faso [25].…”

Section: Chemical Parametersmentioning

confidence: 94%

Quality of Human Urine Used as Fertilizer: Case of an Ecological Sanitation System in Ouagadougou Peri-Urban Areas-Burkina Faso

Makaya¹,

Savadogo²,

Somda³

et al. 2014

JEP

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The use in agriculture of excreta from urine-diversion toilets can be an alternative solution to the lack of sanitation and high costs of mineral fertilizers inherent to developing countries. The objective of this study was to evaluate the hygienic quality of urine used as fertilizer through an ecological sanitation system in Ouagadougou peri-urban areas. Chemical and microbiological analyses were performed in urine samples taken before and after thirty (30) days of storage in jerry cans exposed to sunlight. The concentrations of 7.0 g/l; 3.5 and 9.6 g/l of ammonia nitrogen for mean, minimum and maximum respectively, are obtained in unstored urine samples. These concentrations did not practically vary with the storage. On average, values of other chemical parameters analyzed in stored urine were as follows: pH, 8.8; phosphorus (P), 0.3 g/l; potassium (K), 1.9 g/l; total dissolved solids (TDS), 21.0 g/l; cadmium (Cd), 154.3 µg/l; copper (Cu), 5.2 µg/l; lead (Pb), 15.2 µg/l; chromium (Cr), 6.1 µg/l; nickel (Ni), 154.0 µg/l. Escherichia coli, staphylococci, enterococci, Salmonella and spores of Clostridium perfringens were detected in unstored urine samples, with 26% of fecal contamination rate. The time of storage (30 days) under sunlight was enough for almost all bacteria removal in urine samples. Although the fertilizing value of urine was confirmed, it would be important to take account of the best practices on applying in soils, because of the high TDS contents. Also, the risk linked to micropollutants in urine-based fertilizers could be negligible in view of low quantities. The results obtained in this study prove that after 30 days of exposure to sunlight urine collected via eco-toilet becomes bacteriologically sanitized, and can therefore be J. M. Makaya et al. 468 used to fertilize soils. However, it is necessary to demonstrate the inactivation of other groups of enteric microorganisms in human urine during storage.

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Metal levels in some refuse dump soils and plants in Ghana

Cited by 39 publications

References 11 publications

Heavy metal contamination of topsoil and parts of peach-tree growing at different distances from a smelting complex

Heavy metal contamination of topsoil and parts of peach-tree growing at different distances from a smelting complex

Physicochemical and Mineral Compositions of Wastewater and Soils from Two Selected Abattoirs in Warri, Delta State, Nigeria

Quality of Human Urine Used as Fertilizer: Case of an Ecological Sanitation System in Ouagadougou Peri-Urban Areas-Burkina Faso

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