Atmos. Chem. Phys. Discuss., 10, 19515-19566, 2010
© Author(s) 2010. This work is distributed
under the Creative Commons Attribution 3.0 License.
Review Status
This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Anthropogenic influence on biogenic secondary organic aerosol
C. R. Hoyle1,2, M. Boy3, N. M. Donahue4, J. L. Fry5, M. Glasius6, A. Guenther7, A. G. Hallar8, K. Huff Hartz9, M. D. Petters12, T. Petäjä3, T. Rosenoern11, and A. P. Sullivan10
1Institute for Atmospheric and Climate Science, ETH Zurich, Switzerland
2Department of Geosciences, University of Oslo, Norway
3Department of Physics, University of Helsinki, P.O. Box 64, 00048 Helsinki, Finland
4Carnegie Mellon University, Center for Atmospheric Particle Studies, Pittsburgh, PA 15213, USA
5Chemistry Department, Reed College, Portland, OR, 97202, USA
6Department of Chemistry, Aarhus University, 8000 Aarhus C, Denmark
7National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO, USA
8Desert Research Institute, Storm Peak Laboratory, P.O. Box 882530, Steamboat Springs, Colorado, USA
9Department of Chemistry & Biochemistry, 224 Neckers Hall, Southern Illinois University, Carbondale, IL 62901, USA
10Colorado State University, Department of Atmospheric Science, Fort Collins, CO 80523, USA
11Environmental Chemistry, Engineering Sciences Lab 230, Harvard, Cambridge, MA 02138, USA
12North Carolina State University, Marine Earth and Atmospheric Sciences, Raleigh, NC 27695, USA

Abstract. Because of the climate and air quality effects of organic aerosol, it is important to quantify the influence of anthropogenic emissions on the aerosol burden, both globally and regionally, and both in terms of mass and number. Methods exist with which the fractions of organic aerosol resulting directly from anthropogenic and biogenic processes can be estimated. However, until now, the possible anthropogenic enhancement of secondary organic aerosol formation from naturally emitted precursors has not been explicitly accounted for. Here, we describe the mechanisms through which such an effect may occur and suggest methods suitable to detect it in measurements. An examination of published data reveals qualitative support for the existence of the enhancement effect.

Citation: Hoyle, C. R., Boy, M., Donahue, N. M., Fry, J. L., Glasius, M., Guenther, A., Hallar, A. G., Huff Hartz, K., Petters, M. D., Petäjä, T., Rosenoern, T., and Sullivan, A. P.: Anthropogenic influence on biogenic secondary organic aerosol, Atmos. Chem. Phys. Discuss., 10, 19515-19566, doi:10.5194/acpd-10-19515-2010, 2010.
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