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A two-dimensional volatility basis set: 1. organic-aerosol mixing thermodynamics

Open access
Donahue, N. M., Epstein, S. A., Pandis, S. N., Robinson, A. L.·2011·Atmospheric Chemistry and Physics

Abstract

Abstract. We develop the thermodynamic underpinnings of a two-dimensional volatility basis set (2D-VBS) employing saturation mass concentration (Co) and the oxygen content (O:C) to describe volatility, mixing thermodynamics, and chemical evolution of organic aerosol. The work addresses a simple question: "Can we reasonably constrain organic-aerosol composition in the atmosphere based on only two measurable organic properties, volatility and the extent of oxygenation?" This is an extension of our earlier one-dimensional approach employing volatility only (C* = γ Co, where γ is an activity coefficient). Using available constraints on bulk organic-aerosol composition, we argue that one can reasonably predict the composition of organics (carbon, oxygen and hydrogen numbers) given a location in the Co – O:C space. Further, we argue that we can constrain the activity coefficients at various locations in this space based on the O:C of the organic aerosol.

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Crossref · 10.5194/acp-11-3303-2011

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Metadata

Authors
Donahue, N. M., Epstein, S. A., Pandis, S. N., & Robinson, A. L.
Venue
Atmospheric Chemistry and Physics
Published
2011-04-07
Volume
11
Issue
7
Pages
3303-3318
ISSN
  • 1680-7316 (ISSN-L)
  • 1680-7324
OpenAlex
W2127281457
Cited by
890
References
45
FWCI
18.10
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: A two-dimensional volatility basis set: 1. organic-aerosol mixing thermodynamics. https://app.cochat.ai/papers/10.5194/acp-11-3303-2011
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Donahue, N. M., Epstein, S. A., Pandis, S. N., & Robinson, A. L. (2011). A two-dimensional volatility basis set: 1. organic-aerosol mixing thermodynamics. Atmospheric Chemistry and Physics. https://doi.org/10.5194/acp-11-3303-2011

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