Interactive comment on “Secondary organic aerosol formation from biomass burning intermediates: phenol and methoxyphenols” by L. D. Yee et al
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چکیده
This paper describes a series of environmental chamber experiments and gas/particlephase chemical analysis performed in order to elucidate the mechanisms of SOA formation from biomass burning intermediates: phenol, guaiacol, and syringol under low NOx conditions. Time-profiles of signals observed by the CIMS, in comparison with SOA mass, suggested that ring-fragment carboxylic acids were in equilibrium with SOA. Although vapor pressure of syringol is much lower than those of phenol and guaiacol (∼100 times lower than guaiacol), the SOA yield of syringol was significantly lower than the other two, which was ascribed to loss of carbon in methoxyphenol systems.
منابع مشابه
Secondary organic aerosol formation from biomass burning intermediates: phenol and methoxyphenols
The formation of secondary organic aerosol from oxidation of phenol, guaiacol (2-methoxyphenol), and syringol (2,6-dimethoxyphenol), major components of biomass burning, is described. Photooxidation experiments were conducted in the Caltech laboratory chambers under low-NOx (< 10 ppb) conditions using H2O2 as the OH source. Secondary organic aerosol (SOA) yields (ratio of mass of SOA formed to ...
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