2018
DOI: 10.5194/acp-18-2199-2018
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Bulk and molecular-level characterization of laboratory-aged biomass burning organic aerosol from oak leaf and heartwood fuels

Abstract: Abstract. The chemical complexity of biomass burning organic aerosol (BBOA) greatly increases with photochemical aging in the atmosphere, necessitating controlled laboratory studies to inform field observations. In these experiments, BBOA from American white oak (Quercus alba) leaf and heartwood samples was generated in a custom-built emissions and combustion chamber and photochemically aged in a potential aerosol mass (PAM) flow reactor. A thermal desorption aerosol gas chromatograph (TAG) was used in paralle… Show more

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Cited by 38 publications
(35 citation statements)
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“…Unlike the other primary compounds emitted during combustion, their pWLC concentration is found to increase during aging. Fortenberry et al (2018) observed a similar trend for vanillin. As most of these compounds are detected both in the gas and particle phase of the emissions Schauer et al, 2001), with the smaller fraction detected in the particle phase of the emissions, it is possible that their increase is partly a result of the partitioning effect.…”
Section: Non-conventional Primary Compoundssupporting
confidence: 59%
See 1 more Smart Citation
“…Unlike the other primary compounds emitted during combustion, their pWLC concentration is found to increase during aging. Fortenberry et al (2018) observed a similar trend for vanillin. As most of these compounds are detected both in the gas and particle phase of the emissions Schauer et al, 2001), with the smaller fraction detected in the particle phase of the emissions, it is possible that their increase is partly a result of the partitioning effect.…”
Section: Non-conventional Primary Compoundssupporting
confidence: 59%
“…Authors have typically focused on the gas-phase oxidation of methoxyphenols (Net et al, 2011;Lauraguais et al, 2012Lauraguais et al, , 2014Yee et al, 2013), only few have specifically addressed the aging of levoglucosan in the particle phase (Hennigan et al, 2010;Kessler et al, 2010;Lai et al, 2014), and only Fortenberry et al (2018) have attempted to characterize the aged chemical fingerprint of biomass burning emissions at the molecular level, by means of a thermal desorption aerosol gas chromatograph (TAG) connected to a potential aerosol mass (PAM) flow reactor. Such data are of prime importance.…”
Section: Introductionmentioning
confidence: 99%
“…Figure c shows that the ions of C x > 1 H y O 2 + are predominantly POA despite their high oxygen content and also that they are more volatile than the compounds that resulted in C x H 2 x ‐1 ions. Ozonolysis results in a modest enhancement of the C x H y O 2 family, likely due to SOA formation as organic acids (Fortenberry et al, ). This is also consistent with the findings of Ortega et al (), who observed enhancement of these ions using a photooxidation flow reactor to age biomass burning emissions.…”
Section: Resultsmentioning
confidence: 99%
“…Thus ∆C 2 H 4 O 2 + could have slightly different properties since it includes multiple species and not just levoglucosan (Aiken et al, ), and the emission ratios of all species detected as ∆C 2 H 4 O 2 + versus levoglucosan may vary with the fuel type and fire conditions. ∆C 2 H 4 O 2 + may also be contributed by non biomass burning sources (Cubison et al, ; Fortenberry et al, ).…”
Section: Resultsmentioning
confidence: 99%