PIXE characterization of PM10 and PM2.5 particulates sizes collected in Ikoyi Lagos,Nigeria |
| |
| Authors: | Godwin C Ezeh Imoh B Obioh Olabode I Asubiojo Olawale E Abiye |
| |
| Institution: | 1. Atmospheric Research and Information Analysis Laboratory (ARIAL) , Centre for Energy Research and Development (CERD) , Ile-Ife 22002 , Nigeria goddyich@yahoo.com;3. Atmospheric Research and Information Analysis Laboratory (ARIAL) , Centre for Energy Research and Development (CERD) , Ile-Ife 22002 , Nigeria;4. Department of Chemistry , Obafemi Awolowo University (O.A.U) , Ile-Ife , Nigeria |
| |
| Abstract: | Ambient concentrations of PM10 (x?≤?10?µm) and PM2.5 (x?≤?2.5?µm) particulate fractions collected from Ikoyi Lagos, Nigeria, as well as their elemental compositions are presented in this study. Both size-segregated fractions were collected using a double staged ‘Gent’ stack filter unit sampler. Elemental characterizations of dust laden filters were carried out using proton-induced X-ray emission (PIXE) technique. Twenty-two elements (Si, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Pb, Br, Rb, Sr, Zr, Ag, Cd, and Ta) were detected as well as their concentrations and correlations were determined for both particulate size fractions. Their correlation matrix result indicates that some of the trace elements detected could have common source origins or similar chemical properties. The results were similar to the levels observed in moderately polluted urban areas and there is need for source identification and apportionment using receptor models in future studies. |
| |
| Keywords: | elemental characterization inhalable particulate matter |
|
|
