Aerosol speciation and mass prediction from toluene oxidation under high NOx conditions

Kelly, Janya L.; Michelangeli, Diane V.; Makar, Paul A.; Hastie, D. R.; Mozurkewich, M.; Auld, J.

doi:10.1016/j.atmosenv.2009.10.035

Cited by 27 publications

(28 citation statements)

References 47 publications

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“…Iinuma et al (2010), Kelly et al (2010), and Finewax et al (2018) demonstrated their formation through the oxidation of cresol in the presence of NO x . The aerosol formation of nitrocatechols varies between 7 and 65 mg kg −1 for 4-NC, between 0.3 and 6 mg kg −1 for 4M5NC, and between 0.4 and 10 mg kg −1 for 3M5NC.…”

Section: Secondary Compoundsmentioning

confidence: 98%

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: Secondary Compoundsmentioning

confidence: 98%

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

et al. 2018

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“…[35] These compounds have recently been suggested as BB SOA tracers, formed by photooxidation of m-cresol which is released during fires as a degradation product of lignins, [27] as well as anthropogenic SOA tracers, formed by photooxidation of toluene. [28] The weak compound with RT 20.4 min was attributed to a nitroguaiacol (likely 6-nitroguaicol, for which a reference is not available), a compound which has recently been reported in urban winter PM 2.5 aerosol from Maribor, Slovenia, [35] and may point to the combustion of softwood. [39] In addition, higher methyl homologues of the m/z 168 methyl nitrocatechols, i.e.…”

Section: Contribution Of Hulis-c To Wsocmentioning

confidence: 99%

“…[27] They also arise from the photooxidation, in the presence of NO x , of anthropogenic volatile organic compounds (VOCs), i.e. toluene, [28] which accounts for ,6 % of the observed non-methane hydrocarbons, making it the most abundant aromatic VOC in urban air. [29] In addition, nitrocatechols should be considered as target SOA tracers as they are formed through the same formation mechanism from benzene, [30] which is also an abundant anthropogenic VOC in urban air.…”

Section: Introductionmentioning

confidence: 99%

Chemical characterisation of humic-like substances from urban, rural and tropical biomass burning environments using liquid chromatography with UV/vis photodiode array detection and electrospray ionisation mass spectrometry

et al. 2012

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Environmental context. One of the most important classes of water-soluble organic compounds in continental fine and tropical biomass burning aerosol is humic-like substances (HULIS), which contain components with strong polar, acidic and chromophoric properties. We focus on the chemical characterisation of HULIS and provide evidence that nitro-aromatic catecholic compounds are among the major species of HULIS. This indicates that volatile aromatic hydrocarbons emitted during biomass burning are important gas-phase precursors for HULIS.Abstract. Humic-like substances (HULIS) are ubiquitously present in the troposphere and make up a major fraction of continental fine-sized water-soluble organic compounds. They are regarded as material with strong polar, acidic and chromophoric properties; however, structural information at the individual component level is rather limited. In the present study, we have characterised HULIS from different locations using liquid chromatography coupled to photodiode array detection and negative ion electrospray ionisation mass spectrometry. Aerosol samples with particles less than 2.5 mm in diameter (PM 2.5

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“…Nitrocatechols are the most abundant secondary compounds detected. Iinuma et al (2010) and Kelly et al (2010) demonstrated their formation through the oxidation of cresol in the presence of NO x. The aerosol formation of varies between 20 7 and 65 mg kg -1 for 4-NC, between 0.3 and 6 mg kg -1 for 4M5NC and between 0.4 and 10 mg kg -1 for 3M5NC.…”

Section: Secondary Compounds 15mentioning

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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Aerosol speciation and mass prediction from toluene oxidation under high NOx conditions

Cited by 27 publications

References 47 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

Chemical characterisation of humic-like substances from urban, rural and tropical biomass burning environments using liquid chromatography with UV/vis photodiode array detection and electrospray ionisation mass spectrometry

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

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