Assessment of element accumulation from bitumen deposit by vegetation using Energy Dispersive X-ray Fluorescence (EDXRF) spectroscopy technique

Vegetation samples from the bitumen deposit area of Southwestern Nigeria were analysed for element contents to assess their level of accumulation from a bitumen deposit area and to provide a framework for the establishment of relationships between the chemistry of the mineral deposit and the vegetat...

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Bibliographic Details
Published inChemistry and ecology Vol. 24; no. 6; pp. 423 - 435
Main Authors Adebiyi, F. M., Asubiojo, O. I.
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 01.12.2008
Subjects
Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
bitumen
Ecotoxicology, biological effects of pollution
EDXRF
element
Fundamental and applied biological sciences. Psychology
General aspects
soil
vegetation
Soils
EDXRF
X ray fluorescence
Vegetation
bitumen
soil
Biological accumulation
element
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Summary:Vegetation samples from the bitumen deposit area of Southwestern Nigeria were analysed for element contents to assess their level of accumulation from a bitumen deposit area and to provide a framework for the establishment of relationships between the chemistry of the mineral deposit and the vegetation. The element concentrations of the samples were determined using the EDXRF spectrometry technique. Thirteen elements - K, Ca, Cr, Ti, V, Mn, Ni, Cu, Zn, Ga, Rb, Sr and Fe were detected. The results of the calculated concentration ratio (CR) showed that the vegetation samples have high uptake ability (CR > 0.9) from the soil for most of the elements determined. Strong and significant positive correlations exist between some elements, indicating a common source, chemical similarity and/or common natural background levels in the samples. Positive correlations were shown by the results of the cross-plot analysis of the vegetation/soil and vegetation/bitumen, suggesting inter-element correlations between components of the ecosystem and that ecosystem vegetation accumulated the elements via the soil as a result of contamination with the bitumen and also establishing relationships between the aforementioned components of the ecosystem and the bitumen deposit in the area.
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ISSN:0275-7540
1029-0370
DOI:10.1080/02757540802497467