Qi Zhang (Avtor), Jose L. Jimenez (Avtor), M. R. Canagaratna (Avtor), J. David Allan (Avtor), H. Coe (Avtor), I. M. Ulbrich (Avtor), M. R. Alfarra (Avtor), A. Takami (Avtor), A. M. Middlebrook (Avtor), Katja Džepina (Avtor)

Povzetek

Organic aerosol (OA) data acquired by the Aerosol Mass Spectrometer (AMS) in 37 field campaigns were deconvolved into hydrocarbon-like OA (HOA) and several types of oxygenated OA (OOA) components. HOA has been linked to primary combustion emissions (mainly from fossil fuel) and other primary sources such as meat cooking. OOA is ubiquitous in various atmospheric environments, on average accounting for 64%, 83% and 95% of the total OA in urban, urban downwind, and rural/remote sites, respectively. A case study analysis of a rural site shows that the OOA concentration is much greater than the advected HOA, indicating that HOA oxidation is not an important source of OOA, and that OOA increases are mainly due to SOA. Most global models lack an explicit representation of SOA which may lead to significant biases in the magnitude, spatial and temporal distributions of OA, and in aerosol hygroscopic properties.

Ključne besede

atmospheric aerosol;secondary organic aerosols;primary organic aerosols;aerodyne aerosol mass spectrometer;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UNG - Univerza v Novi Gorici
UDK: 54
COBISS: 59052547 Povezava se bo odprla v novem oknu
ISSN: 0094-8276
Št. ogledov: 1396
Št. prenosov: 0
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

URN: URN:SI:UNG
Strani: str. 1-6
Letnik: ǂVol. ǂ34
Zvezek: ǂiss. ǂ13
Čas izdaje: 2007
DOI: 10.1029/2007GL029979
ID: 12757744