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 (<2.5μm) ranged from 55.0 - 124.9μg/m3 while the coarse dust (2.5 - 10μm) varied
from 20.0 - 124.4μg/m3. FAAS analysis of the
respirable dust shows that the concentrations of heavy metals ranged from 0.121 - 0.832mg/kg Pb, 0.019 - 0.111mg/kg Cr, 0.171 - 1.081mg/kg Fe, 0.002 - 0.056mg/kg Mn, 0.002 - 0.438mg/kg Cd, 0.696 -
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