International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2539

Full Length Research Paper

Heavy metal concentration in soil of some mechanic workshops of Zaria-Nigeria

N. N. Garba1*, Y. A. Yamusa3, A. Isma’ila1, S. A. Habiba1, Z. N. Garba2, Y. Musa3 and S. A. Kasim3
1Department of Physics, Ahmadu Bello University, Zaria, Nigeria. 2Department of Chemistry, Ahmadu Bello University, Zaria, Nigeria. 3Centre for Energy Research and Training, Ahmadu Bello University, Zaria, Nigeria.  
Email: [email protected]

  •  Accepted: 29 November 2013
  •  Published: 12 December 2013


This research paper investigated the elemental composition of soil samples from four selected mechanic workshops in Zaria. A total of eight samples were analyzed at Centre for Energy Research and Training (CERT) Ahmadu Bello University Zaria using standardless X-Ray Fluorescence spectroscopy (XRF). From the result, it was found that Silicon (Si) has the highest mean concentration ranging from 0.0013-0.0024 ppm and Ba, Ni, Cr, Mn, Cu, V, Mo and Zn having very low concentration witha mean of (0.000035 0.000053) ppm, (0.000009 0.000012) ppm, (0.0000054 0.000012) ppm, (0.0000049 0.000012) ppm, (0.0000052 0.000017) ppm, (0.0000052 0.000029) ppm, (0.0000068 0.00007) ppm and (0.00001 0.000055) ppm respectively. Lead was found in only one sampling point (Samaru Dogon Icce) with an abundance of 0.00018 ppm which is less than the maximum permissible limits (MPL) recommended by W.H.O. Hence, the result shows that there were no much toxic elements in some of the mechanic workshops in Zaria. It is advisable that substances containing heavy metals should not be disposed in farm lands or any dumpsites close to residential areas.

Key words: Heavy metals, soil, contamination, mechanic workshop.