Articles | Volume 15, issue 1
https://doi.org/10.5194/acp-15-37-2015
https://doi.org/10.5194/acp-15-37-2015
Research article
 | 
07 Jan 2015
Research article |  | 07 Jan 2015

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

Y. J. Li, B. P. Lee, L. Su, J. C. H. Fung, and C.K. Chan

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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.
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