Ozonolysis of α-pinene: Parameterization of secondary organic aerosol mass fraction

114Citations
Citations of this article
111Readers
Mendeley users who have this article in their library.
Get full text

Abstract

Existing parameterizations tend to underpredict the α-pinene aerosol mass fraction (AMF) or yield by a factor of 2-5 at low organic aerosol concentrations (<5 μg m-3). A wide range of smog chamber results obtained at various conditions (low/high NOx, presence/absence of UV radiation, dry/humid conditions, and temperatures ranging from 15-40°C) collected by various research teams during the last decade are used to derive new parameterizations of the SOA formation from α-pinene ozonolysis. Parameterizations are developed by fitting experimental data to a basis set of saturation concentrations (from 10 -2 to 104 μg m-3) using an absorptive equilibrium partitioning model. Separate parameterizations for α-pinene SOA mass fractions are developed for: 1) Low NOx, dark, and dry conditions, 2) Low NOx, UV, and dry conditions, 3) Low NO x, dark, and high RH conditions, 4) High NOx, dark, and dry conditions, 5) High NOx, UV, and dry conditions. According to the proposed parameterizations the α-pinene SOA mass fractions in an atmosphere with 5 μg m-3 of organic aerosol range from 0.032 to 0.1 for reacted α-pinene concentrations in the 1 ppt to 5 ppb range.

Cite

CITATION STYLE

APA

Pathak, R. K., Presto, A. A., Lane, T. E., Stanier, C. O., Donahue, N. M., & Pandis, S. N. (2007). Ozonolysis of α-pinene: Parameterization of secondary organic aerosol mass fraction. Atmospheric Chemistry and Physics, 7(14), 3811–3821. https://doi.org/10.5194/acp-7-3811-2007

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free