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Particle number and mass emission factors from combustion of wood samples collected from Queensland forest

Marsh, Jack, Morawska, Lidia, Ristovski, Zoran, & Wardoyo, Arinto (2005) Particle number and mass emission factors from combustion of wood samples collected from Queensland forest. In Wise, Convention (Ed.) Towards a New Agenda: Proceedings of the 17th International Clean Air & Environment Conference 2005, 3 May - 6 May 2005, Australai, Tasmania, Hobart.

Abstract

Knowledge of particle emission characteristics associated with forest fires and in general, biomass burning, is becoming increasingly important due to the impact of these emissions on human health. Of particular importance is developing a better understanding of the size distribution of particles generated from forest combustion under different environmental conditions, as well as provision of emission factors for different particle size ranges. This study was aimed at quantifying particle emission factors from four types of wood found in South East Queensland forests: Spotted Gum (Corymbia citriodora), Red Gum (Eucalypt tereticornis), Blood Gum (Eucalypt intermedia), and Iron bark (Eucalypt decorticans); under controlled laboratory conditions. The experimental set up included a modified commercial stove connected to a dilution system designed for the conditions of the study. Measurements of particle number size distribution and concentration resulting from the burning of woods with a relatively homogenous moisture content (in the range of 15 to 26 %) and for different rates of burning were performed using a TSI Scanning Mobility Particle Sizer (SMPS) in the size range from 10 to 600 nm and a TSI Dust Trak for PM2.5. The results of the study in terms of the relationship between particle number size distribution and different condition of burning for different species show that particle number emission factors and PM2.5 mass emission factors depend on the type of wood and the burning rate; fast burning or slow burning. The average particle number emission factors for fast burning conditions are in the range of 3.3 x 1015 to 5.7 x 1015 particles/kg, and for PM2.5 are in the range of 139 to 217 mg/kg.

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ID Code: 25556
Item Type: Conference Paper
Keywords: Biomass Burning, Ultrafine Particles, Particle Number Emission
ISBN: 0 9578503 9 5
Subjects: Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100) > Atmospheric Sciences not elsewhere classified (040199)
Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000) > PLANT BIOLOGY (060700) > Plant Biology not elsewhere classified (060799)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Deposited On: 18 Jun 2009 01:16
Last Modified: 29 Feb 2012 23:17

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