1. Two-dimensional BC tracer model to distinguish between primary and secondary OC : lecture at The European Aerosol Conference 2024, 25. 8.-30. 8. 2024, Tampere, FinlandMatic Ivančič, Asta Gregorič, Gašper Lavrič, Bálint Alföldy, Irena Ježek, Iasonas Stavroulas, Martin Rigler, 2024, prispevek na konferenci brez natisa Opis: In this work, we propose an extension of this method. Using the Aethalometer model (Sandradewi et al., 2008), BC as a tracer for primary emitted aerosols can be successfully divided into two components – BCff related to the usage of fossil fuels and BCbb emitted from biomass burning. Because the OC/BC ratio is expected to be different for fossil fuels and biomass burning, we can similarly introduce the two components of POC – a fossil fuel-related POCff and a biomass-burning-related POCbb.
Ključne besede: BC tracer model, secondary organic carbon, black carbon
Objavljeno v RUNG: 14.11.2024; Ogledov: 1524; Prenosov: 4
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2. Highly time-resolved apportionment of carbonaceous aerosols from wildfire using the TC-BC method : camp fire 2018 case studyMatic Ivančič, Martin Rigler, Bálint Alföldy, Gašper Lavrič, Irena Ježek, Asta Gregorič, 2023, izvirni znanstveni članek Ključne besede: black carbon, brown carbon, carbonaceous aerosol, wildfire, air quality, CASS
Objavljeno v RUNG: 06.06.2023; Ogledov: 3143; Prenosov: 17
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3. Two-year-long high-time-resolution apportionment of primary and secondary carbonaceous aerosols in the Los Angeles Basin using an advanced total carbon–black carbon (TC-BC([lambda])) methodMatic Ivančič, Asta Gregorič, Gašper Lavrič Palancsai, Bálint Alföldy, Irena Ježek, Sina Hasheminassab, Payam Pakbin, Faraz Ahangar, Mohammad Sowlat, Steven Boddeker, Martin Rigler, 2022, izvirni znanstveni članek Ključne besede: carbonaceous aerosols, black carbon, brown carbon, Carbonaceous Aerosol Speciation System
Objavljeno v RUNG: 04.08.2022; Ogledov: 2934; Prenosov: 16
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4. Camp Fire 2018: Highly time-resolved study of eOC, eBC and BrC aerosols by the TC-BC (total carbon–black carbon) methodMatic Ivančič, Gašper Lavrič, Asta Gregorič, Balint Alfoldy, Irena Ježek, Jack Connor, Charity Garland, Jonathan P. Bower, Martin Rigler, 2021, objavljeni povzetek znanstvenega prispevka na konferenci Ključne besede: total carbon, black carbon, brown carbon
Objavljeno v RUNG: 17.11.2021; Ogledov: 3597; Prenosov: 56
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5. The new instrument using a TC–BC (total carbon–black carbon) method for the online measurement of carbonaceous aerosolsMartin Rigler, Luka Drinovec, Gašper Lavrič, Anastasia Vlachou, André S. H. Prévôt, Jean-Luc Jaffrezo, Iasonas Stavroulas, Jean Sciare, Judita Burger, Irena Krajnc, Janja Turšič, Anthony D. A. Hansen, Griša Močnik, 2020, izvirni znanstveni članek Opis: 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, aeroosl, black carbon, carbonaceous matter
Objavljeno v RUNG: 17.08.2020; Ogledov: 4734; Prenosov: 80
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