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Naslov:Secondary organic aerosol formation from semi- and intermediate-volatility organic compounds and glyoxal : relevance of O/C as a tracer for aqueous multiphase chemistry
Avtorji:ID Waxman, Eleanor M. (Avtor)
ID Džepina, Katja (Avtor)
ID Ervens, Barbara (Avtor)
ID Lee-Taylor, Julia (Avtor)
ID Aumont, Bernard (Avtor)
ID Jimenez, Jose L. (Avtor)
ID Madronich, Sasha (Avtor)
ID Volkamer, Rainer (Avtor)
Datoteke: Gradivo nima datotek, ki so prostodostopne za javnost. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Neznano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:The role of aqueous multiphase chemistry in the formation of secondary organic aerosol (SOA) remains difficult to quantify. We investigate it here by testing the rapid formation of moderate oxygen-to-carbon (O/C) SOA during a case study in Mexico City. A novel laboratory-based glyoxal-SOA mechanism is applied to the field data, and explains why less gas-phase glyoxal mass is observed than predicted. Furthermore, we compare an explicit gas-phase chemical mechanism for SOA formation from semi- and intermediate-volatility organic compounds (S/IVOCs) with empirical parameterizations of S/IVOC aging. The mechanism representing our current understanding of chemical kinetics of S/IVOC oxidation combined with traditional SOA sources and mixing of background SOA underestimates the observed O/C by a factor of two at noon. Inclusion of glyoxal-SOA with O/C of 1.5 brings O/C predictions within measurement uncertainty, suggesting that field observations can be reconciled on reasonable time scales using laboratory-based empirical relationships for aqueous chemistry.
Ključne besede:secondary organic aerosol, glyoxal, aqueous multiphase chemistry, oxygen-to-carbon ratio, single scattering albedo
Leto izida:2013
Št. strani:str. 978-982
Številčenje:Vol. 40, iss. 5
PID:20.500.12556/RUNG-6453 Novo okno
COBISS.SI-ID:59044867 Novo okno
UDK:54
ISSN pri članku:0094-8276
DOI:10.1002/grl.50203 Novo okno
NUK URN:URN:SI:UNG:REP:MLS5EVLQ
Datum objave v RUNG:11.04.2021
Število ogledov:3442
Število prenosov:0
Metapodatki:XML DC-XML DC-RDF
:
WAXMAN, Eleanor M., DŽEPINA, Katja, ERVENS, Barbara, LEE-TAYLOR, Julia, AUMONT, Bernard, JIMENEZ, Jose L., MADRONICH, Sasha in VOLKAMER, Rainer, 2013, Secondary organic aerosol formation from semi- and intermediate-volatility organic compounds and glyoxal : relevance of O/C as a tracer for aqueous multiphase chemistry. Geophysical research letters [na spletu]. 2013. Vol. 40, no. 5, p. 978–982. [Dostopano 11 april 2025]. DOI 10.1002/grl.50203. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=6453
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Gradivo je del revije

Naslov:Geophysical research letters
Skrajšan naslov:Geophys. res. lett.
Založnik:American Geophysical Union.
ISSN:0094-8276
COBISS.SI-ID:16168965 Novo okno

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