Characterization of organic nitrate constituents of secondary organic aerosol (SOA) from nitrate-radical-initiated oxidation of limonene using high-resolution chemical

Skapare/primärforskare:

Mattias Hallquist - Göteborgs universitet, Institutionen för kemi och molekylärbiologi

Beskrivning:

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

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Ansvarig institution/enhet:

Göteborgs universitet, Institutionen för kemi och molekylärbiologi

Skapare/primärforskare:

Mattias Hallquist - Göteborgs universitet, Institutionen för kemi och molekylärbiologi

Identifierare:

SND-ID: SND 1047

Beskrivning:

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

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Språk:

Engelska

Geografisk utbredning:

Geografisk plats: Sverige

Tidsdimension:

Finansiering:

Vetenskapsrådet — dnr 2015-04123

Vetenskapsrådet — dnr 2014-05332

Vetenskapsrådet — dnr 2013-06917

Forskningsrådet för miljö, areella näringar och samhällsbyggande — dnr 2015-1537

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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:

2018-04-04 doi:10.5878/002984

Iodide-HR-ToF-CIMS Data from NO3-initiated Oxidation of Limonene

Citeringsförslag:

Mattias Hallquist. Göteborgs universitet, Institutionen för kemi och molekylärbiologi (2018). Iodide-HR-ToF-CIMS Data from NO3-initiated Oxidation of Limonene. Svensk nationell datatjänst. Version 1.0. https://doi.org/10.5878/002984

Skapare/primärforskare:

Mattias Hallquist - Göteborgs universitet, Institutionen för kemi och molekylärbiologi

Dataformat / datastruktur:

Numeriska

Publicerad: 2018-04-09