A model mechanism to describe oxidation of monoterpenes leading to secondary organic aerosol: 1. α-pinene and β-pinene
نویسندگان
چکیده
منابع مشابه
Biological activities of α-pinene and β-pinene enantiomers.
The antimicrobial activities of the isomers and enantiomers of pinene were evaluated against bacterial and fungal cells. The agar diffusion test showed that only the positive enantiomers of the α- and β-isomers of pinene were active. The minimal inhibitory concentration (MIC) and minimal microbicidal concentration (MMC) of these monoterpenes were also determined, confirming that the positive en...
متن کاملPhotochemical aerosol formation from pinene and pinene
Aerosol formation from ot-pinene and •-pinene was studied in a series of outdoor smog chamber experiments. Since a previous tudy focused on •-pinene (Pandis et al., 1991), more attention was given here to ot-pinene. The initial hydrocarbon and NO x concentrations ranged from 37 to 582 ppb and 31 to 380 ppb, respectively. The aerosol carbon yield, the fraction of the carbon initially present tha...
متن کاملOrganic nitrate and secondary organic aerosol yield from NO3 oxidation of β-pinene evaluated using a gas-phase kinetics/aerosol partitioning model
The yields of organic nitrates and of secondary organic aerosol (SOA) particle formation were measured for the reaction NO3+β-pinene under dry and humid conditions in the atmosphere simulation chamber SAPHIR at Research Center Jülich. These experiments were conducted at low concentrations of NO3 (NO3+N2O5<10 ppb) and βpinene (peak∼15 ppb), with no seed aerosol. SOA formation was observed to be ...
متن کاملFormation and evolution of molecular products in α-pinene secondary organic aerosol.
Much of our understanding of atmospheric secondary organic aerosol (SOA) formation from volatile organic compounds derives from laboratory chamber measurements, including mass yield and elemental composition. These measurements alone are insufficient to identify the chemical mechanisms of SOA production. We present here a comprehensive dataset on the molecular identity, abundance, and kinetics ...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Atmospheres
سال: 1999
ISSN: 0148-0227
DOI: 10.1029/1999jd900382