Heavy Metals Accumulation by Talinum triangulare grown on Waste Dumpsites in Uyo Metropolis, Akwa Ibom State, Nigeria

Ebong, Godwin Asukwo; Etuk, Helen S.; Johnson, Atim

doi:10.3923/jas.2007.1404.1409

Cited by 34 publications

(16 citation statements)

References 19 publications

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“…The dumpsites were implicated to fertile with higher percentage of non-residual fraction for all the metals studied except for Cu and that the mean total extractable metals in the dumpsites relative to that in the control site showed pollution from anthropogenic sources. Similar findings have been reported for polluted soils [10]- [11]. The edible plants dominant in the area exhibited potentials which are indicators of health risks along food chain and food web [12]- [14].…”

Section: Resultssupporting

confidence: 86%

Health Risk Assessment of Selected Wild Valuable Plants Species Grown around Amaozara and Amaechara Aged Dumpsite Soils in Amasiri, Afikpo North L.G.A. of Ebonyi State, Nigeria

2015

3rd International Conference on Chemical, Agricultural and Medical Sciences (CAMS-2015) Dec. 10-11, 2015 Singapore

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This study investigated bioavailability, transfer and accumulation of metals in wild valuable plants around Amaozara and Amaechara dumpsites in Amasiri, Afikpo North, Ebonyi State, Nigeria using standard protocols. The samples were obtained from the dumpsites vicinity and a nearby farm land (control site). Results showed that mean soil physicochemical parameters and total extractable metals were significantly higher (P < 0.05) in the dumpsites compared to control site and in all the sites, the metals showed more than 65% non-residual fractions except Cu with more than 52% residual fraction. The mobility and bioavailability of the metals were: Cd > Mn > Zn > Pb > Fe > Cr > Ni > Cu in all the sites and metals in the plants at dumpsites were significantly higher (P < 0.05) compared to those at control site. The transfer indices of these plant species varied for all the metals and indicated that they have varied potentials for phytoextraction and phytostabilization. These results showed health risks implications of valuable Plants in dumpsites.

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Section: Resultssupporting

confidence: 86%

Health Risk Assessment of Selected Wild Valuable Plants Species Grown around Amaozara and Amaechara Aged Dumpsite Soils in Amasiri, Afikpo North L.G.A. of Ebonyi State, Nigeria

2015

3rd International Conference on Chemical, Agricultural and Medical Sciences (CAMS-2015) Dec. 10-11, 2015 Singapore

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“…In the last few decades, metal contents in soils have risen to dangerous levels mainly due to human activities such as industrialization and urbanization [ 4 ]. The properties and qualities of soils can be adversely affected by the high concentration of municipal wastes released from homes, schools, offices [ 5 ]. In many cities of the developing world, the increment of waste has led to environmental pollution and degradation [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Identification of heavy metals source within selected active dumpsites in southeastern Nigeria

Onwukeme

Eze

2021

Environ Anal Health Toxicol

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Discriminating contaminant sources is crucial for pollution control. The study aimed at identifying the source(s) of heavy metals in active dumpsite soils from selected areas in Southeastern Nigeria using statistical tools. The dumpsites were Enyimba dumpsite Aba (dumpsite-1), Okpuno-Egbu dumpsite Nnewi (dumpsite-2), Rice mill dumpsite Abakaliki (dumpsite-3) and Nekede dumpsite Owerri (dumpsite-4) in Abia, Anambra, Ebonyi and Imo State respectively. After standard sampling, elemental analysis was carried out using an energy dispersive x-ray fluorescence spectrometer; Chromium (Cr), Manganese (Mn), Cobalt (Co), Iron (Fe), Nickel (Ni), Copper (Cu), Zinc (Zn), Arsenic (As), Lead (Pb) and Cadmium (Cd) were quantified and results showed they were present in high concentrations above control and standard values set by the National Environmental Standards and Regulations Enforcement Agency (NESREA) and the Food and Agriculture Organization of the United Nations (FAO) / World Health Organization (WHO). Metals investigated exhibited variable correlations among themselves suggesting potential multi-element contamination, while soil organic matter (OM) and pH displayed both significant positive and negative influence on the metal availability in the studied soils. Test of significance of the observed correlation were positive and significant (r > 0.9 at p < 0.05/0.01) for Cr/Co, Cr/Fe, Mn/Co, Co/Fe, Cu/Zn, Zn/Pb, Cu/As, Cu/Pb, Zn/As, As/Pb in dumpsite-1; in dumpsite-2, only Ni/Cu; in dumpsite-3, Fe/OM and Cd/OM while in dumpsite-4,Co/Fe, Cu/As, Cu/Pb, Zn/Cd, Ni/OM, and As/Pb. Hierarchical cluster analysis (HCA) and Principal component analysis (PCA) extracted two to three components/groups based on square Euclidean distance and eigenvalues > 1, confirming sources to be from organic pigments in plastics, scrap metals and incinerated biodegradable wastes. This study concludes that statistical methods can provide a scientific basis for monitoring heavy metals accumulation in dumpsite soils.

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“…Soil does not only provide a place for plants, animals and microbial life, but also a natural reservoir for metals. Its heavy metal concentration is associated with biogeochemical cycle, parent material, mineralogy, soil age, organic matter, particle size distribution, soil pH, redox concentration, oxidation state and microbial activities [1]; [ 2]., [3 ]; ]; [ 4].…”

Section: Introductionmentioning

confidence: 99%

Effects of Heavy Metals on Soil Enzymatic Activities in the Ishiagu Mining Area of Ebonyi State-Nigeria

Ofoegbu¹

2013

IOSR-JESTFT

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Effects of heavy metal pollution on the enzymatic activities of soils were investigated in the Ishiagu mining area of Ebonyi State, Nigeria. Soil dehydrogenase, polyphenol oxidase, hydrogen peroxidase, alkaline and acid phosphatases and urease were measured to evaluate the effects of heavy metals mining operations on soil biochemical characteristics. Results showed that the soil pH ranged from 5.04 to 6.56 while the heavy metals were of the ranges:

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Heavy Metals Accumulation by Talinum triangulare grown on Waste Dumpsites in Uyo Metropolis, Akwa Ibom State, Nigeria

Cited by 34 publications

References 19 publications

Health Risk Assessment of Selected Wild Valuable Plants Species Grown around Amaozara and Amaechara Aged Dumpsite Soils in Amasiri, Afikpo North L.G.A. of Ebonyi State, Nigeria

Health Risk Assessment of Selected Wild Valuable Plants Species Grown around Amaozara and Amaechara Aged Dumpsite Soils in Amasiri, Afikpo North L.G.A. of Ebonyi State, Nigeria

Identification of heavy metals source within selected active dumpsites in southeastern Nigeria

Effects of Heavy Metals on Soil Enzymatic Activities in the Ishiagu Mining Area of Ebonyi State-Nigeria

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