Articles | Volume 21, issue 5
Atmos. Chem. Phys., 21, 3763–3775, 2021
https://doi.org/10.5194/acp-21-3763-2021
Atmos. Chem. Phys., 21, 3763–3775, 2021
https://doi.org/10.5194/acp-21-3763-2021

Research article 12 Mar 2021

Research article | 12 Mar 2021

Identification and source attribution of organic compounds in ultrafine particles near Frankfurt International Airport

Florian Ungeheuer et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Alexander Vogel on behalf of the Authors (18 Jan 2021)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (27 Jan 2021) by Drew Gentner
AR by Alexander Vogel on behalf of the Authors (28 Jan 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (30 Jan 2021) by Drew Gentner
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Short summary
We analysed the chemical composition of ultrafine particles from 10–56 nm near Frankfurt Airport based on cascade impactor samples. We used an offline non-target screening to determine size-resolved molecular fingerprints. Unambiguous attribution of two homologous ester series to jet engine oils enables a new strategy of source attribution and explains the majority of the detected compounds. In addition, we identified additives of jet oils and a detrimental thermal transformation product.
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