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Articles by C.L. Ndiokwere
Total Records ( 1 ) for C.L. Ndiokwere
  Okuo M. James and C.L. Ndiokwere
  Air particulate matter collected by gravimetric method at five locations where industrial activities are concentrated in Warri, Nigeria, was analyzed for 14 elements by Atomic Absorption Spectrophotometric method (AAS). The particulate matter range of 922-2333 μg m-3 was obtained. The highest elemental concentrations measured in the samples were for As, Se, V, Na and Ca. The results show that As, Cd, Se V and Pb are derived from combustion and industrial activities and are highly enriched while the elements Na, Ca and Al which are soil derived are moderately enriched. Data analysis show that steel/metal works, sea salts, residual oil combustion, motor vehicle and re-entrained soil dust are the major sources of the elements in the atmospheric environment. The chemical mass balance analysis revealed an anthropogenic contribution of 37-75%. The precision of measurement is 4-5.5%.
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