Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33618
Title: Multi-criteria ranking and receptor modelling of airborne fine particles at three sites in the Pearl River Delta region of China
Authors: Friend, AJ
Ayoko, GA
Guo, H 
Keywords: Air quality
Hong Kong
Multi-criteria ranking
PM2.5
Receptor modelling
Issue Date: 2011
Publisher: Elsevier
Source: Science of the total environment, 2011, v. 409, no. 4, p. 719-737 How to cite?
Journal: Science of the total environment 
Abstract: The multi-criteria decision making methods, Preference Ranking Organization METHods for Enrichment Evaluation (PROMETHEE) and Graphical Analysis for Interactive Assistance (GAIA), and the two-way Positive Matrix Factorization (PMF) receptor model were applied to airborne fine particle compositional data collected at three sites in Hong Kong during two monitoring campaigns held from November 2000 to October 2001 and November 2004 to October 2005. PROMETHEE/GAIA indicated that the three sites were worse during the later monitoring campaign, and that the order of the air quality at the sites during each campaign was: rural site > urban site > roadside site. The PMF analysis on the other hand, identified 6 common sources at all of the sites (diesel vehicle, fresh sea salt, secondary sulphate, soil, aged sea salt and oil combustion) which accounted for approximately 68.8 ?? 8.7% of the fine particle mass at the sites. In addition, road dust, gasoline vehicle, biomass burning, secondary nitrate, and metal processing were identified at some of the sites. Secondary sulphate was found to be the highest contributor to the fine particle mass at the rural and urban sites with vehicle emission as a high contributor to the roadside site. The PMF results are broadly similar to those obtained in a previous analysis by PCA/APCS. However, the PMF analysis resolved more factors at each site than the PCA/APCS. In addition, the study demonstrated that combined results from multi-criteria decision making analysis and recepto
URI: http://hdl.handle.net/10397/33618
ISSN: 0048-9697
EISSN: 1879-1026
DOI: 10.1016/j.scitotenv.2010.11.008
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