Rate constant and secondary organic aerosol yields for the gas-phase reaction of hydroxyl radicals with syringol (2,6-dimethoxyphenol)

Lauraguais, Amélie; Coeur-Tourneur, C.; Cassez, Andy; Seydi, Abdoulaie

doi:10.1016/j.atmosenv.2012.02.027

Cited by 67 publications

(94 citation statements)

References 32 publications

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“…Therefore, the other most sensible hypothesis is that these compounds are formed during the oxidation process. Several experiments have been conducted on the heterogeneous and gas-phase reactivity of methoxyphenols with atmospheric oxidants (OH, NO 3 ;Net et al, 2011;Lauraguais et al, 2012;Yee et al, 2013). Typically, they react to first form intermediate products with a structure akin to the initial methoxyphenol.…”

Section: Non-conventional Primary Compoundsmentioning

confidence: 99%

“…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%

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Evolution of the chemical fingerprint of biomass burning organic aerosol during aging

et al. 2018

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Abstract. A thermal desorption aerosol gas chromatograph coupled to a high resolution -time of flight -aerosol mass spectrometer (TAG-AMS) was connected to an atmospheric chamber for the molecular characterization of the evolution of organic aerosol (OA) emitted by woodstove appliances for residential heating. Two log woodstoves (old and modern) and one pellet stove were operated under typical conditions. Emissions were aged during a time equivalent to 5 h of atmospheric aging. The five to seven samples were collected and analyzed with the TAG-AMS during each experiment. We detected and quantified over 70 compounds, including levoglucosan and nitrocatechols. We calculate the emission factor (EF) of these tracers in the primary emissions and highlight the influence of the combustion efficiency on these emissions. Smoldering combustion contributes to a higher EF and a more complex composition. We also demonstrate the effect of atmospheric aging on the chemical fingerprint. The tracers are sorted into three categories according to the evolution of their concentration: primary compounds, non-conventional primary compounds, and secondary compounds. For each, we provide a quantitative overview of their contribution to the OA mass at different times of the photooxidative process.

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Section: Non-conventional Primary Compoundsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evolution of the chemical fingerprint of biomass burning organic aerosol during aging

et al. 2018

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“…Therefore, the other most sensible hypothesis is that these compounds are formed during the oxidation process. Several experiments have been conducted on the heterogeneous and gas-phase reactivity of 5 methoxyphenols with atmospheric oxidants (OH, NO 3 ) (Net et al, 2011;Lauraguais et al, 2012;Yee et al, 2013). Typically, they react to first form intermediate products with a structure akin to the initial methoxyphenol.…”

Section: Non-conventional Primary Compoundsmentioning

confidence: 99%

“…20 The concentration of organic aerosol (OA) particle mass has been documented to increase up to 7 times during photochemical aging (Grieshop et al, 2009;Heringa et al, 2011;Ortega et al, 2013;Bruns et al, 2015;Tiitta et al, 2016), however, the chemical composition of this secondary organic aerosol (SOA) produced remains uncertain. Multiple studies investigated the oxidation of specific gas-phase precursors commonly emitted by biomass burning, namely methoxyphenols (Net et al, 2011;Lauraguais et al, 2012;Yee et al, 2013;Lauraguais et al, 2014), but few have specifically addressed the 25 aging of specific biomass burning tracers in the particle phase (Hennigan et al, 2010;Kessler et al, 2010;Lai et al, 2014), and so far, only Fortenberry et al (2017) have attempted characterizing 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. This is especially important in the context of source apportionment studies which assume that chemical profiles are constant with time.…”

Section: Introductionmentioning

confidence: 99%

Evolution of the chemical fingerprint of biomass burning organic aerosol during aging

Bertrand¹,

Stefenelli²,

Jen³

et al. 2018

Preprint

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Abstract. A Thermal Desorption Aerosol Gas Chromatograph coupled to a High Resolution -Time of Flight -AerosolMass Spectrometer (TAG-AMS) was connected to an atmospheric chamber for the molecular characterization of the evolution organic aerosol (OA) emitted by woodstoves appliances for residential heating. Two logwood stoves (old and modern) and one pellet stove were operated under typical conditions. Emissions were aged during a time equivalent to 5 hours of atmospheric aging. 5 to 7 samples were collected and analyzed with TAG-AMS during each experiment. We detect 5 and quantify over 70 compounds, including levoglucosan and nitrocatechols. We calculate the emission emissions factor (EF) of these tracers in the primary emissions and highlight the influence of the combustion efficiency on these emissions.Smoldering combustion contribute to higher EF and a more complex composition. We also demonstrate the effect of the

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“…0.00602 b 9.66 ± 1.11 at 21 ± 2 • C (Lauraguais et al, 2012) a Experimental database values within EPA (2012) b Calculated within EPA (2012) different fuel sources and sampling techniques (Fine et al, 2001). Particulate matter from biomass burning, including wildfires, residential wood burning, and deforestation is also of major concern for visibility, climate change and health effects (Naeher et al, 2007).…”

mentioning

confidence: 99%

Secondary organic aerosol formation from biomass burning intermediates: phenol and methoxyphenols

et al. 2013

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Abstract. The formation of secondary organic aerosol from oxidation of phenol, guaiacol (2-methoxyphenol), and syringol (2,6-dimethoxyphenol), major components of biomass burning, is described. Photooxidation experiments were conducted in the Caltech laboratory chambers under low-NOx (< 10 ppb) conditions using H2O2 as the OH source. Secondary organic aerosol (SOA) yields (ratio of mass of SOA formed to mass of primary organic reacted) greater than 25% are observed. Aerosol growth is rapid and linear with the primary organic conversion, consistent with the formation of essentially non-volatile products. Gas- and aerosol-phase oxidation products from the guaiacol system provide insight into the chemical mechanisms responsible for SOA formation. Syringol SOA yields are lower than those of phenol and guaiacol, likely due to novel methoxy group chemistry that leads to early fragmentation in the gas-phase photooxidation. Atomic oxygen to carbon (O : C) ratios calculated from high-resolution-time-of-flight Aerodyne Aerosol Mass Spectrometer (HR-ToF-AMS) measurements of the SOA in all three systems are ~ 0.9, which represent among the highest such ratios achieved in laboratory chamber experiments and are similar to that of aged atmospheric organic aerosol. The global contribution of SOA from intermediate volatility and semivolatile organic compounds has been shown to be substantial (Pye and Seinfeld, 2010). An approach to representing SOA formation from biomass burning emissions in atmospheric models could involve one or more surrogate species for which aerosol formation under well-controlled conditions has been quantified. The present work provides data for such an approach.

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Rate constant and secondary organic aerosol yields for the gas-phase reaction of hydroxyl radicals with syringol (2,6-dimethoxyphenol)

Cited by 67 publications

References 32 publications

Evolution of the chemical fingerprint of biomass burning organic aerosol during aging

Evolution of the chemical fingerprint of biomass burning organic aerosol during aging

Evolution of the chemical fingerprint of biomass burning organic aerosol during aging

Secondary organic aerosol formation from biomass burning intermediates: phenol and methoxyphenols

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