Pollution synergy from the concurrence of the Harmattan, fugitive dust and
combustion emissions was investigated in this work. The study area, Maiduguri metropolis,
is located in the regions of high Harmattan distribution of West Africa. A total of 12
sampling stations were used in this work, which consisted of traffic circles/junctions and
outskirt control stations during the Harmattan seasons of 2006 and 2007. The results of
pollution indicator parameters investigated, i.e. particulate matter deposition rates, sulphate
and heavy metal (As, Cd, Cr, Cu, Fe, Ni and Pb) concentrations show, in most cases, a
significant level of increases which is indicative of an aggravation of atmospheric air
pollutants during the Harmattan seasons which portends consequential implications for
human health and environment.