Emission of dioxins from bush fires in Australia

Meyer, C. P., Black, R. R., Tolhurst, K. G., McCaw, L., Cook, G., Symons, R. and Mueller, J. F. (2007). Emission of dioxins from bush fires in Australia. In: O. Hutzinger, Short Papers from DIOXIN 2007. International Symposium on Halogenated Persistent Organic Pollutants (27th, DIOXIN, 2007), Tokyo, Japan, (307-310). 2-7 September 2007.

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Name Description MIMEType Size Downloads
Author Meyer, C. P.
Black, R. R.
Tolhurst, K. G.
McCaw, L.
Cook, G.
Symons, R.
Mueller, J. F.
Title of paper Emission of dioxins from bush fires in Australia
Conference name International Symposium on Halogenated Persistent Organic Pollutants (27th, DIOXIN, 2007)
Conference location Tokyo, Japan
Conference dates 2-7 September 2007
Proceedings title Short Papers from DIOXIN 2007   Check publisher's open access policy
Journal name Organohalogen Compounds   Check publisher's open access policy
Place of Publication Bayreuth, Germany
Publisher Eco-Informa Press
Publication Year 2007
Sub-type Fully published paper
ISSN 1026-4892
Editor O. Hutzinger
Volume 69
Start page 307
End page 310
Total pages 4
Collection year 2008
Language eng
Formatted Abstract/Summary
Samples from the smoke plumes of 18 field fires across Australia were collected and analysed to assess PCDD/F/PCB emission rates. Emission rates were variable across all fire classes (prescribed, wildfire, and savanna) .. The measured emission factors for our forest fires (prescribed and wildfires) and savanna fires averaged 1± 0.5 pg TEQ (g C) which translates to approximately 0.5 ug TEQ t1. PCDDs contributed on average 70% of the emissions (expressed as TEQ), with PCDFs and PCBs contributing a further 20 and 10% respectively. Our results consistently show a congener pattern in which PCDD predominates over PCDF, and in which the higher chlorinated groups are more common than the less chlorinated groups. A major consequence of this congener pattern is relatively low toxicity when compared to emissions from other combustion sources. This data were consistent across 18 measurements at different sites across Australia. In 90% of these samples, the emission factor was less than 3.0 pg TEQ/ (g C) this is much lower than expected emissions based on literature values. The results suggest that the emission factors provided in the UNEP toolkit appear to overestimate emissions from bush fires in Australia.
Subjects 259902 Environmental Chemistry (incl. Atmospheric Chemistry)
300899 Environmental Sciences not elsewhere classified
300605 Fire Management
769999 Other Environmental aspects
C1
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Presented during and published under "Formation and Sources (Laboratory and Field Studies) (6-1 : FORMATION)" as Paper O-072.

 
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Created: Thu, 12 Jun 2008, 10:32:26 EST by Ms Diana Cassidy on behalf of National Res Centre For Environmental Toxicology