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Type: Journal Article
Author(s): Robert R. Black; Carl P. Meyer; Alan Yates; Lukas Van Zwieten; Brock G. Chittim; Caroline Gaus; Jochen F. Mueller
Publication Date: 2012

Soil is an important reservoir of PCDD/PCDF, which can be released when environmental conditions change. Fire is an extreme event that can increase the surface temperatures of soil substantially, yet little is known of the role soil plays in the emission of PCDD/PCDF. Soil containing native PCDD/PCDF was fortified with a mixture of mass labelled PCDD/PCDF and heated between 150ºC and 400ºC. Both native and mass labelled PCDD/PCDF were released from the soil beyond 200ºC. Release of the mass labelled compounds was linearly related to temperature with up to 9% found in the air stream at 400ºC. The release of some native PCDD/PCDF was much greater. At 400ºC, emission of 1,2,3,7,8-Cl5DD was 300% compared to pre-experimental soil. Emission of PCDD/PCDF from soil during bushfires is a relevant process and may originate from both volatilization and formation via de novo or precursor pathways, or dechlorination. © 2012 Elsevier Ltd. All rights reserved.

Citation: Black, R. R., C. P. Meyer, A. Yates, L. Van Zwieten, B. G. Chittim, C. Gaus, and J. F. Mueller. 2012. Release of native and mass labelled PCDD/PCDF from soil heated to simulate bushfires. Environmental Pollution, v. 166, p. 10-16. 10.1016/j.envpol.2012.02.014.

Cataloging Information

Regions:
International
Keywords:
  • air quality
  • Australia
  • bushfire
  • dioxins
  • emission factors
  • fire management
  • forest fire
  • New South Wales
  • pollution
  • soil management
  • soil nutrients
  • soil temperature
  • volatilization
  • wildfires
Tall Timbers Record Number: 27093 • Location Status: Not in file • Call Number: Not in File • Abstract Status: Fair use, Okay, Reproduced by permission
Record Last Modified:
Record Maintained By: FRAMES Staff (https://www.frames.gov/contact)
FRAMES Record Number: 50484

This bibliographic record was either created or modified by Tall Timbers and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of Tall Timbers.