Accumulation of Heavy Metals in Soil and Maize Plant (Zea mays) in the Vicinity of Two Government Approved Dumpsites in Benin City, Nigeria
Journal Title: Asian Journal of Chemical Sciences - Year 2017, Vol 3, Issue 3
Abstract
Soil contamination by heavy metals is of great concern with respect to human health risks, groundwater contamination, phytotoxicity to plants, adverse effects on microbial activity and diversity, long-term effects on soil fertility and depreciation of land. Soil samples were obtained with the aid of soil Augar within a depth of 0 – 20 cm from the vicinity of the two selected dumpsites in Benin City, Edo State Nigeria. The soil samples were assessed for some physico-chemical properties using standard methods. Maize plants found growing in the dumpsite and control areas were also sampled, partitioned into leaves, stems, and roots prior to analysis in the laboratory for heavy metals determination using atomic absorption spectrophotometer (AAS). The soil sample showed Zn, Cu, Cd, Pb and Cr levels ranging from 42.66-243.81, 2.16-21.41, 0.35-2.59, 1.11-7.76 and 2.99-10.99 mg/kg respectively. Pollution indices such as contamination factor, contamination degree and pollution load index of the heavy metals analyzed were calculated and their values varied among the heavy metals and between the dumpsites. Concentrations of the metals in the dumpsite soil and plant were found to be higher compared to those of the control sites. Significant differences of heavy metals accumulations were observed per plant parts, roots having the highest concentrations. The translocation factor, biological concentration factor and biological accumulation coefficient values of the plant species varied for all the metals. These results imply that the dumpsites have associated human health and ecological risks.
Authors and Affiliations
N. A. Oladejo, B. Anegbe, O. Adeniyi
Keywords
Related Articles
- EP ID EP338845
- DOI 10.9734/AJOCS/2017/37635
- Views 122
- Downloads 0
Treatments of Recycled Pulps from Old Corrugated Containers. Part I. The Effects of Boron Compounds on Optical and Physical Properties
Aims: It was aimed to provide understanding of the properties of recycled fibers from Old Corrugated Container (OCC) and to explore boric acid and sodium borohydride effects for improvement of the properties of secondary...
Treatments of Recycled Pulps from Old Corrugated Containers. Part II. The Effects of Boron Compounds on Strength Properties
The paper from secondary fibers has generally considered to be used in corrugated cardboard production. For this purpose, Sack Corrugated Test (SCT) and Corrugated Medium Tests were used to determine the strength resista...
XRD Studies, Spectral Characteristics, TGA and DFT of 2,4-Diamino-6-phenyl-1,3,5-triazine: Phenylthioacetic Acid Cocrystal
The title compound was prepared crystallizing together the co-formers namely, 2,4-diamino-6-phenyl-1,3,5-triazine (DAPT) and phenylthioacetic acid (PTAA) in methanol. The compound crystallized in the orthorhombic space g...
Synthesis, Characterization and Swelling Behaviour of Guar Gum-g-poly (Methyl Methacrylate) Superabsorbent Nanocomposite
In this work, polymer nanocomposite was synthesized based on guar gum (GG) and methyl methacrylate (MMA) by free radical graft copolymerization reaction using boric acid as a cross linking agent and hydrogen peroxide as...
Organochlorine Pesticide Residue Levels and Potential Human Health Risks in Kolanuts from Selected Markets in Osun State, Southwestern Nigeria
Organochlorine Pesticide (OCP) residue were qualitatively and quantitatively determined using Gas Chromatography-Electron Capture Detector (GC-ECD) and their potential health risks assessed in kolanut (Cola nitida) sampl...