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Ivan Kourtchev
Researcher at University of Cambridge
Publications - 49
Citations - 4023
Ivan Kourtchev is an academic researcher from University of Cambridge. The author has contributed to research in topics: Aerosol & Mass spectrometry. The author has an hindex of 28, co-authored 46 publications receiving 3511 citations. Previous affiliations of Ivan Kourtchev include University of Antwerp & University College Cork.
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Journal ArticleDOI
Enhanced Volatile Organic Compounds emissions and organic aerosol mass increase the oligomer content of atmospheric aerosols
Ivan Kourtchev,Chiara Giorio,Antti Manninen,Eoin M. Wilson,Brendan M. Mahon,Juho Aalto,Maija Kajos,Dean S. Venables,Dean S. Venables,Taina Ruuskanen,Janne Levula,Matti Loponen,Sarah Connors,Neil R. P. Harris,Neil R. P. Harris,Defeng Zhao,Astrid Kiendler-Scharr,Thomas F. Mentel,Yinon Rudich,Mattias Hallquist,Jean-François Doussin,Willy Maenhaut,Jaana Bäck,Tuukka Petäjä,John C. Wenger,Markku Kulmala,Markus Kalberer +26 more
TL;DR: It is shown for the first time that a specific organic compound class in aerosols, oligomers, is strongly correlated with cloud condensation nuclei activities of SOA particles, which might have important implications for future climate scenarios where increased temperatures cause higher biogenic volatile organic compound emissions, which in turn lead to higher SOA mass formation and significant changes in SOA composition.
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Polar organic marker compounds in atmospheric aerosols during the LBA-SMOCC 2002 biomass burning experiment in Rondônia, Brazil: sources and source processes, time series, diel variations and size distributions
Magda Claeys,Ivan Kourtchev,Ivan Kourtchev,V. A. Pashynska,V. A. Pashynska,Gyorgy Vas,Gyorgy Vas,Reinhilde Vermeylen,Wu Wang,Jan Cafmeyer,Xuguang Chi,Paulo Artaxo,Meinrat O. Andreae,Willy Maenhaut +13 more
TL;DR: In this paper, a more detailed discussion is presented compared to previous reports on the behavior of selected polar marker compounds, including levoglucosan, malic acid, isoprene secondary organic aerosol (SOA) tracers and tracers for fungal spores.
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Molecular composition of boreal forest aerosol from Hyytiälä, Finland, using ultrahigh resolution mass spectrometry.
Ivan Kourtchev,Stephen J. Fuller,Juho Aalto,Taina Ruuskanen,M. W. McLeod,Willy Maenhaut,Willy Maenhaut,Rod Jones,Markku Kulmala,Markus Kalberer +9 more
TL;DR: It is shown for the first time that the highly detailed chemical composition obtained from UHR-MS analyses can be clearly linked to meteorological parameters and trace gases concentrations that are relevant to atmospheric oxidation processes.
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Characterization of urban aerosol in Cork city (Ireland) using aerosol mass spectrometry
Manuel Dall'Osto,Manuel Dall'Osto,Jurgita Ovadnevaite,Darius Ceburnis,Damien Martin,Robert M. Healy,Ian P. O'Connor,Ivan Kourtchev,Ivan Kourtchev,John R. Sodeau,John C. Wenger,Colin D. O'Dowd +11 more
TL;DR: In this article, a three-week measurement study in 2009, 93% of the ca. 1 350 000 single particles characterized by an Aerosol Time-of-Flight Mass Spectrometer (TSI ATOFMS) were classified into five organic-rich particle types, internally mixed to different proportions with elemental carbon (EC), sulphate and nitrate, while the remaining 7% was predominantly inorganic in nature.
Journal ArticleDOI
Molecular composition of biogenic secondary organic aerosols using ultrahigh resolution mass spectrometry: comparing laboratory and field studies
Ivan Kourtchev,Stephen J. Fuller,Chiara Giorio,Robert M. Healy,Eoin M. Wilson,Ian P. O'Connor,John C. Wenger,M. W. McLeod,Juho Aalto,Taina Ruuskanen,Willy Maenhaut,Willy Maenhaut,Roderic L. Jones,Dean S. Venables,John R. Sodeau,Markku Kulmala,Markus Kalberer +16 more
TL;DR: In this paper, the molecular composition of laboratory-generated secondary organic aerosol (SOA) was compared with that of background ambient aerosol collected at a boreal forest site (Hyytiala, Finland) and an urban location (Cork, Ireland) using high-resolution mass spectrometry.