Technical Note: Vapor pressure estimation methods applied to secondary organic aerosol constituents from α-pinene oxidation: An intercomparison study

by S. Compernolle, K. Ceulemans, J. F. Müller
Atmospheric Chemistry and Physics ()
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Abstract

We applied and compared seven vapor pressure estimation methods to the condensable compounds generated in the oxidation of alpha-pinene, as described by the state-of-the-art mechanism of the BOREAM model (Capouet et al., 2008). Several of these methods had to be extended in order to treat functional groups such as hydroperoxides and peroxy acyl nitrates. Large differences in the estimated vapor pressures are reported, which will inevitably lead to large differences in aerosol formation simulations. Cautioning remarks are given for some vapor pressure estimation methods.

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