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| Titel |
Oligomer formation within secondary organic aerosols: equilibrium and dynamic considerations |
| VerfasserIn |
E. R. Trump, N. M. Donahue |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 14, no. 7 ; Nr. 14, no. 7 (2014-04-10), S.3691-3701 |
| Datensatznummer |
250118581
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| Publikation (Nr.) |
 copernicus.org/acp-14-3691-2014.pdf |
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| Zusammenfassung |
| We present a model based on the volatility basis set to consider the
potential influence of oligomer content on volatility driven secondary organic aerosol (SOA) yields. The
implications for aerosol evaporation studies, including dilution, chamber
thermo-equilibration, and thermodenuder studies, are also considered. A
simplified description of oligomer formation reproduces essentially all of
the broad classes of equilibrium and dynamical observations related to SOA
formation and evaporation: significant oligomer content may be consistent
with mass yields that increase with organic aerosol mass concentration;
reversible oligomerization can explain the hysteresis between the rate of
SOA formation and its evaporation rate upon dilution; and the model is
consistent with both chamber thermo-equilibration studies and thermodenuder
studies of SOA evaporation. |
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