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Type: Journal Article
Author(s): Sonya Collier; S. Zhou; T. B. Onasch; Daniel A. Jaffe; L. Kleinman; A. J. Sedlacek; Nicole L. Wigder Briggs; Jonathan Hee; E. Fortner; J. E. Shilling; D. Worsnop; Robert J. Yokelson; Caroline L. Parworth; X. L. Ge; J. Z. Xu; Z. Butterfield; D. Chand; M. K. Dubey; M. S. Pekour; S. Springston; Qi Zhang
Publication Date: August 2016

Wildfires are important contributors to atmospheric aerosols and a large source of emissions that impact regional air quality and global climate. In this study, the regional and nearfield influences of wildfire emissions on ambient aerosol concentration and chemical properties in the Pacific Northwest region of the United States were studied using real-time measurements from a fixed ground site located in Central Oregon at the Mt. Bachelor Observatory (~ 2700 m a.s.l.) as well as near their sources using an aircraft. The regional characteristics of biomass burning aerosols were found to depend strongly on the modified combustion efficiency (MCE), an index of the combustion processes of a fire. Organic aerosol emissions had negative correlations with MCE, whereas the oxidation state of organic aerosol increased with MCE and plume aging. The relationships between the aerosol properties and MCE were consistent between fresh emissions (~ 1 h old) and emissions sampled after atmospheric transport (6-45 h), suggesting that biomass burning organic aerosol concentration and chemical properties were strongly influenced by combustion processes at the source and conserved to a significant extent during regional transport. These results suggest that MCE can be a useful metric for describing aerosol properties of wildfire emissions and their impacts on regional air quality and global climate. © 2016 American Chemical Society.

Online Links
Citation: Collier, S. et al. 2016. Regional influence of aerosol emissions from wildfires driven by combustion efficiency: insights from the BBOP campaign. Environmental Science & Technology, v. 50, no. 16, p. 8613-8622. 10.1021/acs.est.6b01617.

Cataloging Information

Regions:
Keywords:
  • aerosols
  • air quality
  • biomass burning
  • biomass burning emissions
  • chemical composition
  • combustion
  • fire management
  • forest management
  • high resolution
  • Mass-Spectrometer
  • mixing ratios
  • Oregon
  • Organic Aerosol
  • particulate matter
  • remote sensing
  • trace gases
  • wildfires
Tall Timbers Record Number: 32368Location Status: Not in fileCall Number: AvailableAbstract Status: Fair use, Okay, Reproduced by permission
Record Last Modified:
Record Maintained By: FRAMES Staff (https://www.frames.gov/contact)
FRAMES Record Number: 54602

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.