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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Latest update: 23 Sep 2021
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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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