Martin Rigler (Avtor), Luka Drinovec (Avtor), Gašper Lavrič (Avtor), Athanasia Vlachou (Avtor), A. S. H. Prevot (Avtor), Jean-Luc Jaffrezo (Avtor), Iasonas Stavroulas (Avtor), Jean Sciare (Avtor), Judita Burger (Avtor), Irena Kranjc (Avtor), Janja Turšič (Avtor), Anthony D. A. Hansen (Avtor), Griša Močnik (Avtor)

Povzetek

We present a newly developed total carbon analyzer (TCA08) and a method for online speciation of carbonaceous aerosol with a high time resolution. The total carbon content is determined by flash heating of a sample collected on a quartz-fiber filter with a time base between 20 min and 24 h. The limit of detection is approximately 0.3 µg C, which corresponds to a concentration of 0.3 µg C m−3 at a sample flow rate of 16.7 L min−1 and a 1 h sampling time base. The concentration of particulate equivalent organic carbon (OC) is determined by subtracting black carbon concentration, concurrently measured optically by an Aethalometer®, from the total carbon concentration measured by the TCA08. The combination of the TCA08 and Aethalometer (AE33) is an easy-to-deploy and low-maintenance continuous measurement technique for the high-time-resolution determination of equivalent organic and elemental carbon (EC) in different particulate matter size fractions, which avoids pyrolytic correction and the need for high-purity compressed gases. The performance of this online method relative to the standardized off-line thermo-optical OC–EC method and respective instruments was evaluated during a winter field campaign at an urban background location in Ljubljana, Slovenia. The organic-matter-to-organic-carbon ratio obtained from the comparison with an aerosol chemical speciation monitor (ACSM) was OM/OC=1.8, in the expected range.

Ključne besede

total carbon;aerosol;black carbon;carbonaceous matter;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UNG - Univerza v Novi Gorici
UDK: 53
COBISS: 25335555 Povezava se bo odprla v novem oknu
ISSN: 1867-1381
Št. ogledov: 2122
Št. prenosov: 72
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
Vrsta dela (COBISS): Delo ni kategorizirano
Strani: str. 4333-4351
Letnik: ǂVol. ǂ13
Zvezek: ǂiss. ǂ8
Čas izdaje: 2020
DOI: 10.5194/amt-13-4333-2020
ID: 11959894
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