%0 Journal Article %T Elemental Studies of Soil and Food Flour for Risk Assessment of Highway Pollution Using Particle-Induced X-Ray Emission (PIXE) Spectrometry %A O. I. Asubiojo %A F. M. Adebiyi %A E. I. Obiajunwa %A J. A. Ajao %J ISRN Analytical Chemistry %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/594598 %U http://dx.doi.org/10.5402/2012/594598