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Abstract Detail



Ecology

Odiwe, Anthony [1], Sikiru, Dauda K [2], Raimi , Idris [3].

Determination of the level of trace metals using tree barks in automobile mechanic workshops at Ile-Ife, Nigeria.

The level of trace metals in automobile mechanic workshops using different tree species barks at different sampling heights were examined with the aim of providing information on the level of air pollution as well as determining the suitability of using trees barks in assessing the level of air pollution. Tree barks samples were collected at 2 m and 4 m height from eight different automobile mechanic workshop sites around Ile-Ife metropolis and control sites. The samples were transported to the laboratory, oven-dried at 60 ?C to a constant weight; ground and concentration of Pb, Cu, Cd, Fe, Zn, and S determined were determined using an Atomic Absorption Spectrophotometer. Results showed that the concentration of Fe, Cu, Pb and S at the mechanic sites were significantly (p < 0.001) higher at 2 m than 4 m depth in all the species. The concentration of Zn was significantly (p < 0.001) higher at the 2 m depth in all the sites except for Gliricidia sepium. The concentration of Cd was, however, significantly (p < 0.05) higher at the control site compared to other sites at the two heights in the species except for Gliricidia and Terminalia catapa that showed no significant difference (p > 0.05) between the sites. The positive correlation value of 0.99 was observed between Fe and S; 0.94 between Zn and Cd; 0.76 between Pb and Cd, and 0.50 between Zn and Pb. This study showed that different tree species have different affinity for air pollutants, the level of the pollutants differ at the two heights above the ground and that soil particles also acted as a source of heavy metals in our environment.


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1 - Obafemi Awolowo University, Department Of Botany, Ibadan Road, Ile-Ife, OS, BC220005, Nigeria
2 - Obafemi Awolowo University, Department of Bptany, Ile-Ife, BC220005, Nigeria
3 - Obafemi Awolowo University, Institute of Ecology and Environmental Studies, Ile-Ife, BC220005, Nigeria

Keywords:
Atmospheric
Automobile
Pollutants
trace metals
tree bark.

Presentation Type: Oral Paper
Session: 2, Ecology Section - Functional Traits and Responses
Location: 104/Mayo Civic Center
Date: Monday, July 23rd, 2018
Time: 8:00 AM
Number: 2001
Abstract ID:336
Candidate for Awards:None


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