Q. Zhang1, J. L. Jiménez2, Manjula R. Canagaratna3, J. D. Allan4, Hugh Coe4, I. M. Ulbrich2, M. Rami Alfarra5, Akinori Takami6, A. M. Middlebrook7, Yele Sun1, K. Džepina2, E. J. Dunlea2, K. S. Docherty2, P. F. DeCarlo2, D. Salcedo8, T. B. Onasch3, John T. Jayne3, Takao Miyoshi6, Atsushi Shimono9, Shiro Hatakeyama6, N. Takegawa10, Y. Kondo10, Johannes Schneider11, Frank Drewnick11, Stephan Borrmann11, S. Weimer1, Kenneth L. Demerjian1, P. I. Williams4, Keith Bower4, R. Bahreini7,2, L. Cottrell12, Robert J. Griffin12, Jani Rautiainen13, Junying Sun14, Yuhong Zhang14, Douglas R. Worsnop3
1Atmospheric Sciences Research Center; University at Albany, State University of New York; New York USA
2Cooperative Institute of Research in Environment Sciences and Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado, USA
3Aerodyne Research, Inc., Billerica, Massachusetts, USA
4School of Earth, Atmospheric and Environmental Science, University of Manchester, Manchester, UK
5Laboratory for Atmospheric Chemistry, Paul Scherrer Institute, Villigen, Switzerland
6Chemical Reaction Section, Atmospheric Environment Division, National Institute for Environmental Studies, Tsukuba, Japan
7Chemical Sciences Division NOAA Earth System Research Laboratory Boulder Colorado USA
8Centro de Investigaciones Quimicas Universidad Autónoma del Estado de Morelos Cuernavaca Mexico
9Sanyu Plant Service Co., Ltd. Sagamihara Japan
10Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
11Department of Particle Chemistry, Max Planck Institute for Chemistry, Mainz, Germany.
12Climate Change Research Center University of New Hampshire Durham New Hampshire USA
13Department of Physics, University of Kuopio, Kuopio, Finland
14Center for Atmosphere Watch and Services, Chinese Academy of Meteorological Sciences, Beijing, China
Tóm tắt
Organic aerosol (OA) data acquired by the Aerosol Mass Spectrometer (AMS) in 37 field campaigns were deconvolved into hydrocarbon‐like OA (HOA) and several types of oxygenated OA (OOA) components. HOA has been linked to primary combustion emissions (mainly from fossil fuel) and other primary sources such as meat cooking. OOA is ubiquitous in various atmospheric environments, on average accounting for 64%, 83% and 95% of the total OA in urban, urban downwind, and rural/remote sites, respectively. A case study analysis of a rural site shows that the OOA concentration is much greater than the advected HOA, indicating that HOA oxidation is not an important source of OOA, and that OOA increases are mainly due to SOA. Most global models lack an explicit representation of SOA which may lead to significant biases in the magnitude, spatial and temporal distributions of OA, and in aerosol hygroscopic properties.
