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Volume 14, issue 24
Atmos. Chem. Phys., 14, 13483–13495, 2014
https://doi.org/10.5194/acp-14-13483-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Chem. Phys., 14, 13483–13495, 2014
https://doi.org/10.5194/acp-14-13483-2014
© Author(s) 2014. This work is distributed under
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 et al.

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Alfarra, M. R., Coe, H., Allan, J. D., Bower, K. N., Boudries, H., Canagaratna, M. R., Jimenez, J. L., Jayne, J. T., Garforth, A., Li, S. M., and Worsnop, D. R.: Characterization of Urban and Rural Organic Aerosols In the Lower Fraser Valley Using Two Aerodyne Particulate Mass Spectrometers, Atmos. Environ., 38, 5745–5758, 2004.
Allan, J. D., Alfarra, M. R., Bower, K. N., Coe, H., Jayne, J. T., Worsnop, D. R., Aalto, P. P., Kulmala, M., Hyötyläinen, T., Cavalli, F., and Laaksonen, A.: Size and composition measurements of background aerosol and new particle growth in a Finnish forest during QUEST 2 using an Aerodyne Aerosol Mass Spectrometer, Atmos. Chem. Phys., 6, 315–327, https://doi.org/10.5194/acp-6-315-2006, 2006.
Bruns, E., Perraud, V., Zelenyuk, A., Ezell, M., Johnson, S. N., Yu, Y., Imre, D., Finlayson-Pitts, B., and Alexander, M. L.: Comparison of FTIR and particle mass spectrometry for the measurement of particulate organic nitrates, Environ. Sci. Technol., 44, 1056–1061, 2010.
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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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