| 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.  |
|---|
| 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 |
|---|
| COBISS.SI-ID: | 59044867 |
|---|
| UDK: | 54 |
|---|
| ISSN pri članku: | 0094-8276 |
|---|
| DOI: | 10.1002/grl.50203 |
|---|
| NUK URN: | URN:SI:UNG:REP:MLS5EVLQ |
|---|
| Datum objave v RUNG: | 11.04.2021 |
|---|
| Število ogledov: | 3006 |
|---|
| Število prenosov: | 0 |
|---|
| Metapodatki: |    |
|---|
|
:
|
Kopiraj citat |
|---|
| | | | Skupna ocena: | (0 glasov) |
|---|
| Vaša ocena: | Ocenjevanje je dovoljeno samo prijavljenim uporabnikom. |
|---|
| Objavi na: |  |
|---|
Postavite miškin kazalec na naslov za izpis povzetka. Klik na naslov izpiše
podrobnosti ali sproži prenos. |
