Abstract
Lichens collected in an unpolluted forest (background) in November 2004, transplanted at 41 sampling sites along the Madina-Tetteh Quarshie road, retrieved in February 2005 and analysed were found to contain higher concentrations of Manganese (Mn), Vanadium (V), lead, Cadmium (Cd), Chromium (Cr) and Nickel (Ni) than in the background area. Observations showed that of all the heavy metals studied, Manganese concentrations were highest at all sampling points with maximum values around a traffic light, an intersection and car fitting/mechanic workshops. Significant correlations were found between Ni and Mn, Mn and Cr and Mn and V. Statistical analysis also revealed a relatively even dispersion of the studied elements on the eastern side of the road than on the western side.
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Affum, H.A., Oduro-Afriyie, K., Nartey, V.K. et al. Biomonitoring of airborne heavy metals along a major road in Accra, Ghana. Environ Monit Assess 137, 15–24 (2008). https://doi.org/10.1007/s10661-007-9701-7
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DOI: https://doi.org/10.1007/s10661-007-9701-7