Articles | Volume 20, issue 14
Atmos. Chem. Phys., 20, 8421–8440, 2020
https://doi.org/10.5194/acp-20-8421-2020
Atmos. Chem. Phys., 20, 8421–8440, 2020
https://doi.org/10.5194/acp-20-8421-2020

Research article 17 Jul 2020

Research article | 17 Jul 2020

Chemical characterization of secondary organic aerosol at a rural site in the southeastern US: insights from simultaneous high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) and FIGAERO chemical ionization mass spectrometer (CIMS) measurements

Yunle Chen et al.

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Latest update: 13 Jun 2021
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Short summary
Two online mass spectrometry instruments, an aerosol mass spectrometer and a chemical ionization mass spectrometer equipped with a filter inlet for gases and aerosols, were deployed at Yorkville, GA, for a comprehensive characterization of organic aerosol. We observed notable secondary organic aerosol formation from isoprene and monoterpenes via different pathways during both day and night, and a series of highly oxidized acid-like compounds was found to be closely related to aged SOA.
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