Source apportionment of PM2.5 at two receptor sites in Brisbane, Australia
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Date
2011
Authors
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Journal ISSN
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Publisher
CSIRO Publishing
Abstract
In this study, samples of particulate matter with aerodynamic diameter less than 2.5 mu m (PM2.5) collected at two sites in the south-east Queensland region, a suburban (Rocklea) and a roadside site (South Brisbane), were analysed for H, Na, Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Br, Pb and black carbon (BC). Samples were collected during 2007-10 at the Rocklea site and 2009-10 at the South Brisbane site. The receptor model Positive Matrix Factorisation was used to analyse the samples. The sources identified included secondary sulfate, motor vehicles, soil, sea salt and biomass burning. Conditional probability function analysis was used to determine the most likely directions of the sources. Future air quality control strategies may focus on the particular sources identified in the analysis. © 2011, CSIRO Publishing
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Keywords
Australia, Receptors, Factorization, Particles, Queensland, Analytic functions
Citation
Friend, A. J., Ayoko, G. A., Stelcer, E., & Cohen, D. (2011). Source apportionment of PM2.5 at two receptor sites in Brisbane, Australia. Environmental Chemistry, 8(6), 569-580. doi:10.1071/EN11056