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Secondary Organic Aerosol from the Photooxidation of Aromatic Hydrocarbons: Molecular Composition

Forstner, Hali J. L., Flagan, Richard C., Seinfeld, John H.·1997·Environmental Science & Technology

Abstract

Outdoor smog chamber photooxidations to determine the molecular composition of secondary organic aerosol (SOA) from toluene, m -xylene, p -xylene, ethylbenzene, m -ethyltoluene, p -ethyltoluene, and 1,2,4-trimethylbenzene in sunlight-irradiated hydrocarbon−NO x mixtures are reported. Gas-phase mechanisms leading to the observed products are proposed. Unsaturated anhydrides (2,5-furandione, 3-methyl-2,5-furandione, 3-ethyl-2,5-furandione) are predominant components of aerosol from all the aromatics, an observation that is consistent with gas-phase aromatic mechanisms involving ring fragmentation. Saturated anhydrides were also detected in significant quantities, which could result from the hydrogenation of the furandiones in sunlight in the particle phase.

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Metadata

Authors
Forstner, H. J. L., Flagan, R. C., & Seinfeld, J. H.
Venue
Environmental Science & Technology
Published
1997-04-29
Volume
31
Issue
5
Pages
1345-1358
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W1988591536
Cited by
397
References
0
FWCI
7.18
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Secondary Organic Aerosol from the Photooxidation of Aromatic Hydrocarbons: Molecular Composition. https://app.cochat.ai/papers/10.1021/es9605376
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Forstner, H. J. L., Flagan, R. C., & Seinfeld, J. H. (1997). Secondary Organic Aerosol from the Photooxidation of Aromatic Hydrocarbons: Molecular Composition. Environmental Science & Technology. https://doi.org/10.1021/es9605376

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