Molecular and physical characteristics of aerosol at a remote free troposphere site: implications for atmospheric aging

Schum, Simeon K.; Zhang, Bo; Džepina, Katja; Fialho, Paulo; Mazzoleni, Claudio; Mazzoleni, Lynn R.

doi:https://doi.org/10.5194/acp-18-14017-2018

Articles | Volume 18, issue 19

https://doi.org/10.5194/acp-18-14017-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-18-14017-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 19

Research article

|

02 Oct 2018

Research article |

| 02 Oct 2018

Molecular and physical characteristics of aerosol at a remote free troposphere site: implications for atmospheric aging

Simeon K. Schum, Bo Zhang, Katja Džepina, Paulo Fialho, Claudio Mazzoleni, and Lynn R. Mazzoleni

Supplement

https://doi.org/10.5194/acp-18-14017-2018-supplement

Data sets

Ultrahigh resolution FT-ICR MS data of long-range transported free tropospheric aerosol collected at the Pico Mountain Observatory in the Azores S. K. Schum and L. R. Mazzoleni http://digitalcommons.mtu.edu/chemistry-fp/88

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Short summary

This paper presents the detailed molecular composition of free tropospheric aerosol. We studied three pollution events with different origins and residence times and observed differences in the molecular composition pertaining to the atmospheric oxidation. The results indicated that the transport pathways contributed to the observed differences and imply that emissions injected into the free troposphere are longer-lived than those in the boundary layer.