title: Emissions of Selected Semivolatile Organic Chemicals from Forest and Savannah Fires.
abstract: The emission factors (EFs) for a broad range of semivolatile organic chemicals (SVOCs) from subtropical eucalypt forest and tropical savannah fires were determined for the first time from in situ investigations. Significantly higher (t test, P < 0.01) EFs (μg kg-1dry fuel, gas + particle-associated) for polycyclic aromatic hydrocarbons (∑13PAHs) were determined from the subtropical forest fire (7,000 ± 170) compared to the tropical savannah fires (1,600 ± 110), due to the approximately 60-fold higher EFs for 3-ring PAHs from the former. EF data for many PAHs from the eucalypt forest fire were comparable with those previously reported from pine and fir forest combustion events. EFs for other SVOCs including polychlorinated biphenyl (PCB), polychlorinated naphthalene (PCN), and polybrominated diphenyl ether (PBDE) congeners as well as some pesticides (e.g., permethrin) were determined from the subtropical eucalypt forest fire. The highest concentrations of total suspended particles, PAHs, PCBs, PCNs, and PBDEs, were typically observed in the flaming phase of combustion. However, concentrations of levoglucosan and some pesticides such as permethrin peaked during the smoldering phase. Along a transect (10-150-350 m) from the forest fire, concentration decrease for PCBs during flaming was faster compared to PAHs, while levoglucosan concentrations increased.
authors.affiliation: Queensland Alliance for Environmental Health Sciences, The University of Queensland , 39 Kessels Road, Coopers Plains, Queensland 4108, Australia.
authors.forename: Xianyu
authors.identifier: 0000-0002-5917-3366
authors.initials: X
authors.lastname: Wang
authors.affiliation: Queensland Alliance for Environmental Health Sciences, The University of Queensland , 39 Kessels Road, Coopers Plains, Queensland 4108, Australia.|International Laboratory for Air Quality and Health, Queensland University of Technology , 2 George Streeet, Brisbane City, Queensland 4000, Australia.
authors.forename: Phong K
authors.initials: PK
authors.lastname: Thai
authors.affiliation: International Laboratory for Air Quality and Health, Queensland University of Technology , 2 George Streeet, Brisbane City, Queensland 4000, Australia.
authors.forename: Marc
authors.initials: M
authors.lastname: Mallet
authors.affiliation: Centre for Atmospheric Chemistry, University of Wollongong , Northfields Avenue, Wollongong, New South Wales 2522, Australia.|CSIRO Oceans and Atmosphere Flagship, Aspendale Laboratories, 107-121 Station Street, Aspendale, Victoria 3195, Australia.
authors.forename: Maximilien
authors.initials: M
authors.lastname: Desservettaz
authors.affiliation: Griffith School of Environment, Griffith University , 170 Kessels Road, Nathan, Queensland 4111, Australia.
authors.forename: Darryl W
authors.initials: DW
authors.lastname: Hawker
authors.affiliation: CSIRO Oceans and Atmosphere Flagship, Aspendale Laboratories, 107-121 Station Street, Aspendale, Victoria 3195, Australia.
authors.forename: Melita
authors.initials: M
authors.lastname: Keywood
authors.affiliation: International Laboratory for Air Quality and Health, Queensland University of Technology , 2 George Streeet, Brisbane City, Queensland 4000, Australia.
authors.forename: Branka
authors.initials: B
authors.lastname: Miljevic
authors.affiliation: Centre for Atmospheric Chemistry, University of Wollongong , Northfields Avenue, Wollongong, New South Wales 2522, Australia.
authors.forename: Clare
authors.initials: C
authors.lastname: Paton-Walsh
authors.affiliation: Queensland Alliance for Environmental Health Sciences, The University of Queensland , 39 Kessels Road, Coopers Plains, Queensland 4108, Australia.
authors.forename: Michael
authors.initials: M
authors.lastname: Gallen
authors.affiliation: Queensland Alliance for Environmental Health Sciences, The University of Queensland , 39 Kessels Road, Coopers Plains, Queensland 4108, Australia.
authors.forename: Jochen F
authors.initials: JF
authors.lastname: Mueller
mesh_terms: D004784:Environmental Monitoring; D005390:Fires; D065928:Forests; D009930:Organic Chemicals; D011078:Polychlorinated Biphenyls; D011084:Polycyclic Aromatic Hydrocarbons
chemical_list: D009930:Organic Chemicals; D011084:Polycyclic Aromatic Hydrocarbons; D011078:Polychlorinated Biphenyls