Emission factors for selected semivolatile organic chemicals from burning of tropical biomass fuels and estimation of Annual Australian Emissions

Wang, Xianyu, Meyer, Carl P., Reisen, Fabienne, Keywood, Melita, Thai, Phong K., Hawker, Darryl W., Powell, Jennifer and Mueller, Jochen F. (2017) Emission factors for selected semivolatile organic chemicals from burning of tropical biomass fuels and estimation of Annual Australian Emissions. Environmental Science & Technology, 51 17: 9644-9652. doi:10.1021/acs.est.7b01392


Author Wang, Xianyu
Meyer, Carl P.
Reisen, Fabienne
Keywood, Melita
Thai, Phong K.
Hawker, Darryl W.
Powell, Jennifer
Mueller, Jochen F.
Title Emission factors for selected semivolatile organic chemicals from burning of tropical biomass fuels and estimation of Annual Australian Emissions
Journal name Environmental Science & Technology   Check publisher's open access policy
ISSN 1520-5851
0013-936X
Publication date 2017-09-01
Year available 2017
Sub-type Article (original research)
DOI 10.1021/acs.est.7b01392
Open Access Status Not yet assessed
Volume 51
Issue 17
Start page 9644
End page 9652
Total pages 9
Place of publication NW, Washington, DC., United States
Publisher American Chemical Society
Language eng
Subject 1600 Chemistry
2304 Environmental Chemistry
Abstract This study reveals that open-field biomass burning can be an important source of various semivolatile organic chemicals (SVOCs) to the atmosphere including polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and a range of pesticides. Emission factors (EFs) for 39 individual SVOCs are determined from burning of various fuel types that are common in tropical Australia. Emissions of PAHs are found to be sensitive to differences in combustion efficiencies rather than fuel types, reflecting a de novo formation mechanism. In contrast, revolatilization may be important for other SVOCs such as PCBs. On the basis of the EFs determined in this work, estimates of the annual emissions of these SVOCs from Australian bushfires/wildfires are achieved, including, for example, Sigma PAHs (160 (min)-1100 (max) Mg), Sigma PCBs (14-300 kg), Sigma PBDEs (8.8-590 kg), a-endosulfan (6.5-200 kg), and chloipyrifos (up to 1400 kg), as well as dioxin toxic equivalents (TEQs) of Sigma dioxin-like-PCBs (0.018-1.4 g). Emissions of SVOCs that are predominantly revolatilized appear to be related to their use history, with higher emissions estimated for chemicals that had a greater historical usage and were banned only recently or are still in use.
Keyword Polycyclic Aromatic-Hydrocarbons
Global Fire Emissions
Western United-States
Atmospheric Transport
Polychlorinated-Biphenyls
Field-Measurements
Savanna Fires
Pcb Congeners
Forest-Fire
Combustion
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID FF120100546
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
Queensland Alliance for Environmental Health Sciences (QAEHS) Publications
 
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