Backfire particulate emissions and Byram's fire intensity
Document Type: Report
Author(s): Ralph M. Nelson Jr.; Darold E. Ward
Publication Year: 1980

Cataloging Information

  • backfire
  • emission factor models
  • emission factors
  • fire intensity
  • fuel moisture
  • fuel types
  • Ilex glabra
  • particulates
  • PM - particulate matter
  • Serenoa repens
  • smoke management
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 11562
Tall Timbers Record Number: 1251
TTRS Location Status: In-file
TTRS Abstract Status: Okay, Fair use, Reproduced by permission

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy 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 the Tall Timbers Research Station and Land Conservancy.


Particulate-matter emission factors and Byram's fire-intensity values were computed for experimental backfires in pine-litter and palmetto-gallberry fuels in the Southeast. The combined data for both fuel types were in reasonable agreement with the theoretical prediction that emission factor is inversely proportional to the cube root of Byram's fire intensity. Whether the low coefficient of determination (r2 = 0.56) was due to the influence of additional variables on emission factors or to experimental error has not been determined.

Online Link(s):
Link to this document (9.7 MB; pdf)
Nelson Jr., Ralph M.; Ward, Darold E. 1980. Backfire particulate emissions and Byram's fire intensity. Research Note SE-RN-290. Asheville, NC: USDA Forest Service, Southeastern Forest Experiment Station. 6 p.