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Aerosol Size Distribution and Gaseous Products from the Oven-controlled Combustion of Straw Materials

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Volume: 11 | Issue: 5 | Pages: 616-629
DOI: 10.4209/aaqr.2011.02.0015
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Ana I. Calvo 1, Amaya Castro2, Véronique Pont3, M.J. Cuetos4, Marta E. Sánchez4, Roberto Fraile2

  • 1 Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal
  • 2 Department of Physics, IMARENAB, University of León, 24071 León, Spain
  • 3 Laboratoire d’Aérologie /OMP, UMR 5560, Université de Toulouse III, CNRS-UPS, 14, av. E. Belin, 31400 Toulouse, France
  • 4 Department of Chemical Engineering, Institute of Natural Resources, University of León, Avenida de Portugal, 41, 24071 León, Spain


A number of controlled combustions have been carried out in the laboratory using samples of oats and barley straw collected in Spain in order to establish the characteristic particle spectra of these emissions. In addition, chemical compounds such as CO2, NO2 and NO and gravimetric variations have been registered during the combustion processes. For each combustible the burning phase has also been defined. Burning barley generates a higher number of particles in the fine mode (with a diameter of less than 0.5 μm) than oats (74% vs. 59%). The distributions of particles emitted during the flaming phase have been characterized, as well as during the previous and subsequent phases. The average geometric diameter reached its maximum during the flaming phase, with 0.53 ± 0.10 μm and 0.44 ± 0.04 μm for oats and barley, respectively. After the flaming phase, oat straw generates coarser particles than barley.


Biomass burning Aerosols Size distribution Gaseous products

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