Articles | Volume 15, issue 1
https://doi.org/10.5194/acp-15-37-2015
© Author(s) 2015. 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-15-37-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Seasonal characteristics of fine particulate matter (PM) based on high-resolution time-of-flight aerosol mass spectrometric (HR-ToF-AMS) measurements at the HKUST Supersite in Hong Kong
Division of Environment, Hong Kong University of Science and Technology, Hong Kong, China
now at: School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
B. P. Lee
Division of Environment, Hong Kong University of Science and Technology, Hong Kong, China
L. Su
Environmental Science Program, Hong Kong University of Science and Technology, Hong Kong, China
J. C. H. Fung
Division of Environment, Hong Kong University of Science and Technology, Hong Kong, China
Department of Mathematics, Hong Kong University of Science and Technology, Hong Kong, China
C.K. Chan
Division of Environment, Hong Kong University of Science and Technology, Hong Kong, China
Department of Chemical and Biomolecular Engineering, Hong Kong University of Science and Technology, Hong Kong, China
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Short summary
(1) NR-PM1 at the HKUST Supersite was highly aged, with a high sulfate content and highly oxygenated organics.
(2) Seasonal variation in NR-PM1 concentration was not obvious, but the relative fractions of different species showed strong seasonal dependence.
(3) Both NR-PM1 concentrations and the relative fractions showed a strong dependence on air mass origin.
(4) Both locally produced and regionally transported organic aerosols contribute to the organic content of PM at this site.
(1) NR-PM1 at the HKUST Supersite was highly aged, with a high sulfate content and highly...
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