Member of University of Nigeria, Nsukka



Studying the heavy metals in roadside soils is very important in evaluating the probable automobile emission’s environmental effects on the soil. To conduct the study, the soil samples were gathered and examined for the Pb, Zn, Mn, Cu, Ni, Cd, Co and Fe levels by the use of AAS. It was found that the order of the mean total metal content for the examined metals: Fe > Zn > Mn > Pb > Cd > Cu has a decreasing trend. Other than Cd, it was reported that all metals are lower compared to the levels of those found in other studies. Not involving Co and Ni shows that there is no pollution because of such metals. A correlation analysis was performed between metals and the traffic volume (V), indicating that there is a significant positive correlation (p < 0.05) between Pb, Cd and Mn, and V. In addition, the vehicular emissions are the main reason for originating the metal pollution in the soil for example motor vehicles. For this reason, the present study presents an applied approach to control the level of such metals.


ABECHI, E., OKUNOLA, O., ZUBAIRU, S., USMAN, A. & APENE, E. 2010. Evaluation of heavy metals in roadside soils of major streets in Jos metropolis, Nigeria. Journal of Environmental chemistry and Ecotoxicology, 2, 98-102.
ADEFOLALU, A. 1980. Transport and rural integrated development In: proceedings of the National Conference on: Integrated Rural Dev. Women Dev, 1, 294-299.
AMUSAN, A., BADA, S. & SALAMI, A. 2003. Effect of traffic density on heavy metal content of soil and vegetation along roadsides in Osun state, Nigeria. West African Journal of Applied Ecology, 4.
BAI, J. C. 2008. Assessment of heavy metal contamination of roadside soils in southeast China. Stochastic Environmental Research and Risk Assessment.
DAVIES, B. E. & HOUGHTON, N. J. 1984. Distance—Decline patterns in heavy metal contamination of soils and plants in Birmingham, England. Urban Ecology, 8, 285-294.
FRANCEK, M. A. 1992. Soil lead levels in a small town environment: a case study from Mt Pleasant, Michigan. Environmental Pollution, 76, 251-257.
GRAY, C. W., MCLAREN, R. G. & ROBERTS, A. H. 2003. Atmospheric accessions of heavy metals to some New Zealand pastoral soils. Science of the Total Environment, 305, 105-115.
HARRISON, R. M., LAXEN, D. P. & WILSON, S. J. 1981. Chemical associations of lead, cadmium, copper, and zinc in street dusts and roadside soils. Environmental Science & Technology, 15, 1378-1383.
HO, Y. & TAI, K. 1988. Elevated levels of lead and other metals in roadside soil and grass and their use to monitor aerial metal depositions in Hong Kong. Environmental pollution, 49, 37-51.
JARADAT, Q. M. & MOMANI, K. A. 1999. Contamination of roadside soil, plants, and air with heavy metals in Jordan, a comparative study. Turkish Journal of Chemistry, 23, 209-220.
LAGERWERFF, J. V. & SPECHT, A. 1970. Contamination of roadside soil and vegetation with cadmium, nickel, lead, and zinc. Environmental Science & Technology, 4, 583-586.
LI, X., POON, C.-S. & LIU, P. S. 2001. Heavy metal contamination of urban soils and street dusts in Hong Kong. Applied geochemistry, 16, 1361-1368.
MANTA, D. S., ANGELONE, M., BELLANCA, A., NERI, R. & SPROVIERI, M. 2002. Heavy metals in urban soils: a case study from the city of Palermo (Sicily), Italy. Science of the total environment, 300, 229-243.
MATEU, J., FORTEZA, R., CERDA, V. & COLOM-ALTES, M. 1995. Comparison of various methods for the determination of inorganic species in airborne atmospheric particulates. Water, Air, and Soil Pollution, 84, 61-79.
NDIOKWERE, C. L. 1984. A study of heavy metal pollution from motor vehicle emissions and its effect on roadside soil, vegetation and crops in Nigeria. Environmental Pollution Series B, Chemical and Physical, 7, 35-42.
SAKAGAMI, K., HAMADA, R. & KUROBE, T. 1982. Heavy metal contents in dust fall and soil of the National Park for Nature Study in Tokyo.