PM Emissions from Laboratory Combustion of Biomass fuels

Seyedehsan Hosseini (1), Heejung Jung(1), Li Qi(1), David Weise (2), Wayne Miller(1), David Cocker(1)

(1) University of California, Riverside, (2) Pacific Southwest Research Station , Forest Fire Laboratory

     Abstract Number: 726
     Last modified: May 14, 2010

Abstract
A selection of shrubs from California and Arizona and forest fuels from North Carolina and Georgia were burned under controlled environmental conditions at the USDA Forest Service’s Fire Science Laboratory in Missoula. The total of 77 burns were performed with the goal of calculating better emission factors for the fuels in hand. However, this paper only addresses particle phase emission factors. For each burn two sets of Teflon and Quartz filters have been sampled. Particulate matter(PM$_(2.5)) mass emission factors were calculated based on collected mass on Teflon filters analyzed by Gravimetric analysis. In addition, emission factors of Metals and Ions including SO$_(4)$^(2-), NO$_(3)$^(-), Cl$^(-), K$^(+), NH$_(4)$^(+), etc will be presented here using X-Ray Fluorescence(XRF) and Ion Chromatography Techniques, respectively. Organic Carbon(OC)/Elemental Carbon(EC) analysis and the corresponding emission factors will be presented accordingly. Moreover, average Modified Combustion Efficiencies(MCEs) for each burn calculated based on the Carbon monoxide, and Carbon dioxide data collected by Fast Fourier Transform InfraRed (FTIR) spectrometer were used towards finding out how MCE relates to PM2.5 mass and total particle number emission factors. Finally, the filter PM masses will be compared with the results from MOUDI cascade impactor and cumulative Dustrak PM data.