T
Tuukka Petäjä
Researcher at University of Helsinki
Publications - 620
Citations - 38508
Tuukka Petäjä is an academic researcher from University of Helsinki. The author has contributed to research in topics: Aerosol & Particle. The author has an hindex of 82, co-authored 526 publications receiving 30572 citations. Previous affiliations of Tuukka Petäjä include Helsinki Institute of Physics & National Center for Atmospheric Research.
Papers
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Journal ArticleDOI
Size-dependent influence of NOx on the growth rates of organic aerosol particles.
Chao Yan,Wei Nie,Alexander L. Vogel,Alexander L. Vogel,Lubna Dada,Katrianne Lehtipalo,Katrianne Lehtipalo,Katrianne Lehtipalo,Dominik Stolzenburg,Robert Wagner,Matti P. Rissanen,Mao Xiao,Lauri Ahonen,Lukas Fischer,Clémence Rose,F. Bianchi,F. Bianchi,Hamish Gordon,Hamish Gordon,Mario Simon,Martin Heinritzi,Olga Garmash,Pontus Roldin,Antonio Dias,Antonio Dias,Penglin Ye,Victoria Hofbauer,António Amorim,Paulus Salomon Bauer,Anton Bergen,Anne-Kathrin Bernhammer,Martin Breitenlechner,Sophia Brilke,Sophia Brilke,Angela Buchholz,S. Buenrostro Mazon,Manjula R. Canagaratna,Xuemeng Chen,Aijun Ding,J. Dommen,Danielle C. Draper,Jonathan Duplissy,Carla Frege,Claudia Heyn,Roberto Guida,Jani Hakala,Liine Heikkinen,Christopher R. Hoyle,Tuija Jokinen,Juha Kangasluoma,Juha Kangasluoma,Jasper Kirkby,Jasper Kirkby,Jenni Kontkanen,Andreas Kürten,Michael J. Lawler,Huajun Mai,Serge Mathot,Roy L. Mauldin,Roy L. Mauldin,Ugo Molteni,Leonid Nichman,Tuomo Nieminen,John B. Nowak,Andrea Ojdanic,Antti Onnela,Aki Pajunoja,Tuukka Petäjä,Tuukka Petäjä,Felix Piel,Lauriane L. J. Quéléver,Nina Sarnela,Simon Schallhart,Kamalika Sengupta,Mikko Sipilä,António Tomé,Jasmin Tröstl,Olli Väisänen,Andrea Christine Wagner,Arttu Ylisirniö,Qiaozhi Zha,Urs Baltensperger,Kenneth S. Carslaw,Joachim Curtius,Richard C. Flagan,Armin Hansel,Armin Hansel,Ilona Riipinen,James N. Smith,Annele Virtanen,Paul M. Winkler,Neil M. Donahue,V.-M. Kerminen,Markku Kulmala,Mikael Ehn,Douglas R. Worsnop,Douglas R. Worsnop +96 more
TL;DR: It is shown that NOx suppresses particle growth in general, but the suppression is rather nonuniform and size dependent, which can be quantitatively explained by the shifted HOM volatility after adding NOx.
Journal ArticleDOI
Observation of viscosity transition in α -pinene secondary organic aerosol
Emma Järvinen,Karoliina Ignatius,Leonid Nichman,Thomas Bjerring Kristensen,Claudia Fuchs,Christopher R. Hoyle,Niko Florian Höppel,Joel C. Corbin,J. S. Craven,Jonathan Duplissy,Sebastian Ehrhart,Imad El Haddad,Carla Frege,Hamish Gordon,Tuija Jokinen,Peter Kallinger,Jasper Kirkby,Jasper Kirkby,Alexei Kiselev,Karl-Heinz Naumann,Tuukka Petäjä,Tamara Pinterich,André S. H. Prévôt,Harald Saathoff,Thea Schiebel,Kamalika Sengupta,Mario Simon,Jay G. Slowik,Jasmin Tröstl,Annele Virtanen,Paul Vochezer,Steffen Vogt,Andrea Christine Wagner,Robert Wagner,Christina Williamson,Christina Williamson,Christina Williamson,Paul M. Winkler,Chao Yan,Urs Baltensperger,Neil M. Donahue,Richard C. Flagan,Martin Gallagher,Armin Hansel,Markku Kulmala,Frank Stratmann,Douglas R. Worsnop,Ottmar Möhler,Thomas Leisner,Martin Schnaiter +49 more
TL;DR: In this article, a new in situ optical method was deployed to detect the viscous state of α-pinene SOA particles and measured their transition from the amorphous highly viscous states to states of lower viscosity.
Journal ArticleDOI
Applying the Condensation Particle Counter Battery (CPCB) to study the water-affinity of freshly-formed 2–9 nm particles in boreal forest
Ilona Riipinen,Hanna E. Manninen,Taina Yli-Juuti,Michael Boy,Mikko Sipilä,Mikko Sipilä,Mikael Ehn,Heikki Junninen,Tuukka Petäjä,Markku Kulmala +9 more
TL;DR: In this article, the authors present data of >2 nm particle concentrations and their water-affinity measured with the Condensation Particle Counter Battery (CPCB) at a boreal forest site in Hyytiala, Finland, during spring 2006.
Journal ArticleDOI
Detection Efficiency of a Water-Based TSI Condensation Particle Counter 3785
TL;DR: In this article, the authors present observations on the detection efficiency of a recently developed TSI 3785 Water Condensation Particle Counter (WCPC) which relies on activation of sampled particles by water condensation.
Journal ArticleDOI
Model for acid-base chemistry in nanoparticle growth (MABNAG)
Taina Yli-Juuti,Kelley C. Barsanti,L. Hildebrandt Ruiz,L. Hildebrandt Ruiz,Antti-Jussi Kieloaho,Ulla Makkonen,Tuukka Petäjä,Taina Ruuskanen,Markku Kulmala,Ilona Riipinen +9 more
TL;DR: In this article, the effect of salt formation on nanoparticle growth was investigated and the model MABNAG (Model for acid-base chemistry in NAnoparticle Growth) was developed to study the effect.