Exploring the discrepancies between SMPS and AMS measurements in secondary organic aerosol formation experiments

Pavlidis, Damianos; Sippial, Dontavious J.; Florou, Kalliopi; Kostenidou, Evangelia; Pandis, Spyros N.

doi:10.1080/02786826.2024.2304547

Aerosol Science and Technology

2024

DOI: 10.1080/02786826.2024.2304547

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Exploring the discrepancies between SMPS and AMS measurements in secondary organic aerosol formation experiments

Damianos Pavlidis,

Dontavious J. Sippial,

Kalliopi Florou

et al.

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2024

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Cited by 2 publications

References 27 publications

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Characteristics of secondary aerosol formation during shortened multiday reaction experiments in a smog chamber: Effects of relative humidity and ammonia

Kim,

Kim

et al. 2024

Science of The Total Environment

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Characteristics of secondary aerosol formation during shortened multiday reaction experiments in a smog chamber: Effects of relative humidity and ammonia

Kim,

Kim

et al. 2024

Science of The Total Environment

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Secondary Organic Aerosol Formation during the Oxidation of Large Aromatic and Other Cyclic Anthropogenic Volatile Organic Compounds

Pavlidis,

Uruci,

Florou

et al. 2024

ACS EST Air

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The secondary organic aerosol (SOA) production from the reactions of anthropogenic large volatile (VOCs) and intermediate volatility organic compounds (IVOCs) with hydroxyl radicals under high NO x conditions was investigated. The organic compounds studied include cyclic alkanes of increasing size (amylcyclohexane, hexylcyclohexane, nonylcyclohexane, and decylcyclohexane) and aromatic compounds (1,3,5-trimethylbenzene, 1,3,5-triethylbenzene and 1,3,5-tritert-butylbenzene). A considerable amount of SOA was formed from all examined compounds. For the studied cyclohexanes (C11–C16) there appears that the SOA yield depends nonlinearly on the length of their substitute chain. The large cyclohexanes had higher yields than the aromatic compounds, but the aromatic precursors produced a more oxidized SOA. This was due to the production of lower volatility and O:C first generation products by the cyclohexanes. Most oxidation products (with C* < 104 μg m–3) in the case of cyclohexanes are SVOCs (∼50%), while of aromatics are IVOCs (∼60%). Structure, molecular size, and length of the substitute chain of the parent hydrocarbon were found to play key roles in SOA formation, oxidation state, and volatility. The SOA volatility distribution, effective vaporization enthalpy, and effective accommodation coefficient were also quantified by combining SOA yields, thermodenuder (TD) and isothermal dilution measurements. Parameterizations for the Volatility Basis Set (VBS) are proposed for future use in chemical transport models.

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Exploring the discrepancies between SMPS and AMS measurements in secondary organic aerosol formation experiments

Cited by 2 publications

References 27 publications

Characteristics of secondary aerosol formation during shortened multiday reaction experiments in a smog chamber: Effects of relative humidity and ammonia

Characteristics of secondary aerosol formation during shortened multiday reaction experiments in a smog chamber: Effects of relative humidity and ammonia

Secondary Organic Aerosol Formation during the Oxidation of Large Aromatic and Other Cyclic Anthropogenic Volatile Organic Compounds

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