title: Source apportionment of ultrafine and fine particle concentrations in Brisbane, Australia.
abstract: OBJECTIVE
  To investigate the significance of sources around measurement sites, assist the development of control strategies for the important sources and mitigate the adverse effects of air pollution due to particle size.
  
  
  METHODS
  In this study, sampling was conducted at two sites located in urban/industrial and residential areas situated at roadsides along the Brisbane Urban Corridor. Ultrafine and fine particle measurements obtained at the two sites in June-July 2002 were analysed by positive matrix factorization.
  
  
  RESULTS
  Six sources were present, including local traffic, two traffic sources, biomass burning and two currently unidentified sources. Secondary particles had a significant impact at site 1, while nitrates, peak traffic hours and main roads located close to the source also affected the results for both sites.
  
  
  CONCLUSIONS
  This significant traffic corridor exemplifies the type of sources present in heavily trafficked locations and future attempts to control pollution in this type of environment could focus on the sources that were identified.
authors.affiliation: International Laboratory for Air Quality and Health, Queensland University of Technology, Brisbane, QLD, 4001, Australia.
authors.forename: Adrian J
authors.initials: AJ
authors.lastname: Friend
authors.forename: Godwin A
authors.initials: GA
authors.lastname: Ayoko
authors.forename: E Rohan
authors.initials: ER
authors.lastname: Jayaratne
authors.forename: Milan
authors.initials: M
authors.lastname: Jamriska
authors.forename: Philip K
authors.initials: PK
authors.lastname: Hopke
authors.forename: Lidia
authors.initials: L
authors.lastname: Morawska
mesh_terms: D000393:Air Pollutants / Q000737:chemistry*; D001315:Australia; D002947:Cities; D004784:Environmental Monitoring / Q000379:methods*; D007221:Industry; D010316:Particle Size; D052638:Particulate Matter / Q000737:chemistry*; D012906:Smoke; D014186:Transportation; D001335:Vehicle Emissions / Q000032:analysis
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter; D012906:Smoke; D001335:Vehicle Emissions