%0 Journal Article %T Concentration of Heavy Metals in Respirable Dust in Jos Metropolitan Area, Nigeria %A Godwin M. Mafuyai %A Ishaq S. Eneji %A Rufus Sha¡¯Ato %J Open Journal of Air Pollution %P 10-19 %@ 2169-2661 %D 2014 %I Scientific Research Publishing %R 10.4236/ojap.2014.31002 %X

The concentration of respirable dust at seven sampling stations in Jos metropolitan area, was measured weekly for three consecutive months (October 2012 to December 2012). Characterization of the dust particles shows that the concentration of fine dust (<2.5 ¦Ìm) ranged from 55.0 - 124.9 ¦Ìg/m3 while the coarse dust (2.5 - 10 ¦Ìm) varied from 20.0 - 124.4 ¦Ìg/m3. FAAS analysis of the respirable dust shows that the concentrations of heavy metals ranged from 0.121 - 0.832 mg/kg Pb, 0.019 - 0.111 mg/kg Cr, 0.171 - 1.081 mg/kg Fe, 0.002 - 0.056 mg/kg Mn, 0.002 - 0.438 mg/kg Cd, 0.696 -