Creator/Principal investigator(s)
Mattias Hallquist - University of Gothenburg, Department of Chemistry & Molecular Biology
Description
The gas-phase nitrate radical (NO3*) initiated oxidation of limonene can produce organic nitrate species with varying physical properties. Low-volatility products can contribute to secondary organic aerosol (SOA) formation and organic nitrates may serve as a NOx reservoir, which could be especially important in regions with high biogenic emissions. This work presents the measurement results from flow reactor studies on the reaction of NO3 with limonene using a High-Resolution Time-of-Flight Chemical Ionization Mass Spectrometer (HR-ToF-CIMS) combined with a Filter Inlet for Gases and AEROsols (FIGAERO). Major condensed-phase species were compared to those in the Master Chemical Mechanism (MCM) limonene mechanism, and many non-listed species were identified. The volatility properties of the most prevalent organic nitrates in the produced SOA were determined. Analysis of multiple experiments resulted in the identification of several dominant species (including C10H15NO6, C10H17NO6, C8H11NO6, C10H17NO7, and C9H13NO7 ) that occurred in the SOA under all conditions considered. Additionally, the for
... Show more..Language
English
Research principal
Responsible department/unit
Department of Chemistry & Molecular Biology
Study design
Experimental study
Geographic spread
Geographic location: Sweden
Research area
SCIENCE AND TECHNOLOGY
(CESSDA Topic Classification)
Natural Sciences, Chemical Sciences
(The Swedish standard of fields of research 2011)
Faxon, C., Hammes, J., Pathak, R. K., and Hallquist, M.: Characterization of organic nitrate constituents of secondary organic aerosol (SOA) from nitrate-radical-initiated oxidation of limonene using High-Resolution Chemical Ionization Mass Spectrometry, Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2017-584, in review, 2017.
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Version 1.0
https://doi.org/10.5878/002984
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Data format / data structure
Numeric
Creator/Principal investigator(s)
Mattias Hallquist - University of Gothenburg, Department of Chemistry & Molecular Biology