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

Abstract

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.

Keywords

total carbon;aerosol;black carbon;carbonaceous matter;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UNG - University of Nova Gorica
UDC: 53
COBISS: 25335555 Link will open in a new window
ISSN: 1867-1381
Views: 2122
Downloads: 72
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Other data

URN: URN:SI:UNG
Type (COBISS): Not categorized
Pages: str. 4333-4351
Volume: ǂVol. ǂ13
Issue: ǂiss. ǂ8
Chronology: 2020
DOI: 10.5194/amt-13-4333-2020
ID: 11959894
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