Critical assessment of the current state of scientific knowledge, terminology, and research needs concerning the role of organic aerosols in the atmosphere, climate, and global change S. Fuzzi1, M. O. Andreae2, B. J. Huebert3, M. Kulmala4, T. C. Bond5, M. Boy4, S. J. Doherty6, A. Guenther7, M. Kanakidou8, K. Kawamura9, V.-M. Kerminen10, U. Lohmann11, L. M. Russell12, and U. Pöschl2,13 1Istituto di Scienze dell’Atmosfera e del Clima, Consiglio Nazionale delle Ricerche, 40129 Bologna, Italy 2Biogeochemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany 3Department of Oceanography, University of Hawaii, Honolulu, HI 96822, USA 4Department of Physical Sciences, University of Helsinki, 00014 Helsinki, Finland 5Department of Civil and Environmental Engineering, University of Illinois, Urbana, IL 61801, USA 6IGAC Core Project Office, Seattle, WA 98115, USA 7Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, CO 80307-3000, USA 8Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, 71409 Heraklion, Greece 9Institute of Low Temperature Science, Hokkaido University, Sapporo, Hokkaido 060-0819, Japan USA 10Finnish Meteorological Institute, 00810 Helsinki, Finland 11ETH, Institute for Atmospheric and Climate Science, 8093 Zurich, Switzerland Germany 12Scripps Institution of Oceanography, University of California, La Jolla, CA 92093-0221, USA 13Institute of Hydrochemistry, Technical University of Munich, 81377 Munich, Germany
Abstract. In spite of impressive advances in recent years, our present understanding
of organic aerosol (OA) composition, physical and chemical properties,
sources and transformation characteristics is still rather limited, and
their environmental effects remain highly uncertain. This paper discusses
and prioritizes issues related to organic aerosols and their effects on
atmospheric processes and climate, providing a basis for future activities
in the field. Four main topical areas are addressed: i) sources of OA; ii)
formation transformation and removal of OA; iii) physical, chemical and
mixing state of OA; iv) atmospheric modelling of OA. Key questions and
research priorities regarding these four areas are synthesized in this
paper, and outstanding issues for future research are presented for each
topical area. In addition, an effort is made to formulate a basic set of
consistent and universally applicable terms and definitions for coherent
description of atmospheric OA across different scales and disciplines.
Citation: Fuzzi, S., Andreae, M. O., Huebert, B. J., Kulmala, M., Bond, T. C., Boy, M., Doherty, S. J., Guenther, A., Kanakidou, M., Kawamura, K., Kerminen, V.-M., Lohmann, U., Russell, L. M., and Pöschl, U.: Critical assessment of the current state of scientific knowledge, terminology, and research needs concerning the role of organic aerosols in the atmosphere, climate, and global change, Atmos. Chem. Phys., 6, 2017-2038, doi:10.5194/acp-6-2017-2006, 2006.