Articles | Volume 14, issue 24
https://doi.org/10.5194/acp-14-13483-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-14-13483-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
18 Dec 2014
Research article |
| 18 Dec 2014
Atmospheric submicron aerosol composition and particulate organic nitrate formation in a boreal forestland–urban mixed region
L. Q. Hao
CORRESPONDING AUTHOR
Department of Applied Physics, University of Eastern Finland, Kuopio 70211, Finland
A. Kortelainen
Department of Applied Physics, University of Eastern Finland, Kuopio 70211, Finland
S. Romakkaniemi
Department of Applied Physics, University of Eastern Finland, Kuopio 70211, Finland
Finnish Meteorological Institute, Kuopio 70211, Finland
H. Portin
Finnish Meteorological Institute, Kuopio 70211, Finland
A. Jaatinen
Department of Applied Physics, University of Eastern Finland, Kuopio 70211, Finland
A. Leskinen
Finnish Meteorological Institute, Kuopio 70211, Finland
M. Komppula
Finnish Meteorological Institute, Kuopio 70211, Finland
P. Miettinen
Department of Applied Physics, University of Eastern Finland, Kuopio 70211, Finland
D. Sueper
National Center for Atmospheric Research, Boulder, CO 80305, USA
A. Pajunoja
Department of Applied Physics, University of Eastern Finland, Kuopio 70211, Finland
J. N. Smith
Department of Applied Physics, University of Eastern Finland, Kuopio 70211, Finland
Aerodyne Research, Inc., Billerica, MA 08121–3976, USA
K. E. J. Lehtinen
Department of Applied Physics, University of Eastern Finland, Kuopio 70211, Finland
Finnish Meteorological Institute, Kuopio 70211, Finland
D. R. Worsnop
Department of Applied Physics, University of Eastern Finland, Kuopio 70211, Finland
National Center for Atmospheric Research, Boulder, CO 80305, USA
A. Laaksonen
Department of Applied Physics, University of Eastern Finland, Kuopio 70211, Finland
Finnish Meteorological Institute, Helsinki 00101, Finland
A. Virtanen
Department of Applied Physics, University of Eastern Finland, Kuopio 70211, Finland
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Short summary
Positive matrix factorization (PMF) was applied to the unified high-resolution mass spectra organic species with NO+ and NO2+ ions from the measurement in a mixed region between the boreal forestland and the urban area. The PMF analysis succeeded in separating the mixed spectra into three distinct organic factors and one inorganic factor. The particulate organic nitrate was distinguished by PMF for the first time, with a contribution of one-third of the total nitrate mass.
Positive matrix factorization (PMF) was applied to the unified high-resolution mass spectra...
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