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Secondary organic aerosol formation from biomass burning intermediates: phenol and methoxyphenols

Yee, L. D. and Kautzman, K. E. and Loza, C. L. and Schilling, K. A. and Coggon, M. M. and Chhabra, P. S. and Chan, M. N. and Chan, A. W. H. and Hersey, S. P. and Crounse, J. D. and Wennberg, P. O. and Flagan, R. C. and Seinfeld, J. H. (2013) Secondary organic aerosol formation from biomass burning intermediates: phenol and methoxyphenols. Atmospheric Chemistry and Physics, 13 (16). pp. 8019-8043. ISSN 1680-7316. doi:10.5194/acp-13-8019-2013.

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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-NO_x (< 10 ppb) conditions using H_2O_2 as the OH source. Secondary organic aerosol (SOA) yields (ratio of mass of SOA formed to mass of primary organic reacted) greater than 25% are observed. Aerosol growth is rapid and linear with the primary organic conversion, consistent with the formation of essentially non-volatile products. Gas- and aerosol-phase oxidation products from the guaiacol system provide insight into the chemical mechanisms responsible for SOA formation. Syringol SOA yields are lower than those of phenol and guaiacol, likely due to novel methoxy group chemistry that leads to early fragmentation in the gas-phase photooxidation. Atomic oxygen to carbon (O : C) ratios calculated from high-resolution-time-of-flight Aerodyne Aerosol Mass Spectrometer (HR-ToF-AMS) measurements of the SOA in all three systems are ~ 0.9, which represent among the highest such ratios achieved in laboratory chamber experiments and are similar to that of aged atmospheric organic aerosol. The global contribution of SOA from intermediate volatility and semivolatile organic compounds has been shown to be substantial (Pye and Seinfeld, 2010). An approach to representing SOA formation from biomass burning emissions in atmospheric models could involve one or more surrogate species for which aerosol formation under well-controlled conditions has been quantified. The present work provides data for such an approach.

Item Type:Article
Related URLs:
URLURL TypeDescription
Coggon, M. M.0000-0002-5763-1925
Chan, M. N.0000-0002-2384-2695
Chan, A. W. H.0000-0001-7392-4237
Crounse, J. D.0000-0001-5443-729X
Wennberg, P. O.0000-0002-6126-3854
Flagan, R. C.0000-0001-5690-770X
Seinfeld, J. H.0000-0003-1344-4068
Additional Information:© Author(s) 2013. This work is distributed under the Creative Commons Attribution 3.0 License. Published by Copernicus Publications on behalf of the European Geosciences Union. Received: 20 January 2013; Published in Atmos. Chem. Phys. Discuss.: 6 February 2013 Revised: 13 June 2013; Accepted: 20 June 2013; Published: 21 August 2013. This work was supported by the US Department of Energy grants DE-FG02-05ER63983 and DE-SC 0006626 and US Environmental Protection Agency (EPA) STAR Research Agreement No. RD-833749.
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG02-05ER63983
Department of Energy (DOE)DE-SC 0006626
Issue or Number:16
Record Number:CaltechAUTHORS:20130923-142910735
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Official Citation:Yee, L. D., Kautzman, K. E., Loza, C. L., Schilling, K. A., Coggon, M. M., Chhabra, P. S., Chan, M. N., Chan, A. W. H., Hersey, S. P., Crounse, J. D., Wennberg, P. O., Flagan, R. C., and Seinfeld, J. H.: Secondary organic aerosol formation from biomass burning intermediates: phenol and methoxyphenols, Atmos. Chem. Phys., 13, 8019-8043, doi:10.5194/acp-13-8019-2013, 2013.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41485
Deposited By: Jason Perez
Deposited On:23 Sep 2013 23:22
Last Modified:10 Nov 2021 04:30

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