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.
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Journal ArticleDOI
Aerosol size distribution and new particle formation in the western Yangtze River Delta of China: 2 years of measurements at the SORPES station
Ximeng Qi,Aijun Ding,Wei Nie,Tuukka Petäjä,V.-M. Kerminen,Erik Herrmann,Erik Herrmann,Yuning Xie,Longfei Zheng,Hanna E. Manninen,P. P. Aalto,Jianqi Sun,Zhengning Xu,Xuguang Chi,Xin Huang,Michael Boy,Aki Virkkula,Aki Virkkula,Xiu-Qun Yang,Congbin Fu,Markku Kulmala +20 more
TL;DR: In this article, the authors analyzed 2 years (2011-2013) of measurements of submicron particles (6-800 nm) at a suburban site in the western Yangtze River Delta (YRD) of eastern China.
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Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories
Julia Schmale,Silvia Henning,Stefano Decesari,Bas Henzing,Helmi Keskinen,Karine Sellegri,Jurgita Ovadnevaite,Mira L. Pöhlker,Joel Brito,Joel Brito,Aikaterini Bougiatioti,Adam Kristensson,Nikos Kalivitis,Iasonas Stavroulas,Samara Carbone,Anne Jefferson,Minsu Park,Patrick Schlag,Patrick Schlag,Yoko Iwamoto,Yoko Iwamoto,P. P. Aalto,Mikko Äijälä,Nicolas Bukowiecki,Mikael Ehn,Göran Frank,Roman Fröhlich,Arnoud Frumau,Erik Herrmann,Hartmut Herrmann,Rupert Holzinger,Gerard Kos,Markku Kulmala,Nikolaos Mihalopoulos,Athanasios Nenes,Athanasios Nenes,Colin D. O'Dowd,Tuukka Petäjä,David Picard,Christopher Pöhlker,Ulrich Pöschl,Laurent Poulain,André S. H. Prévôt,Erik Swietlicki,Meinrat O. Andreae,Paulo Artaxo,Alfred Wiedensohler,John A. Ogren,Atsushi Matsuki,Seong Soo Yum,Frank Stratmann,Urs Baltensperger,Martin Gysel +52 more
TL;DR: In this article, the authors present a data set of long-term observations of cloud condensation nuclei (CCN) number and number of particles in 12 sites on 3 continents.
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Effect of ions on sulfuric acid‐water binary particle formation: 2. Experimental data and comparison with QC‐normalized classical nucleation theory
Jonathan Duplissy,Jonathan Duplissy,Joonas Merikanto,Alessandro Franchin,Georgios Tsagkogeorgas,Juha Kangasluoma,Daniela Wimmer,Daniela Wimmer,Henri Vuollekoski,Siegfried Schobesberger,Siegfried Schobesberger,Katrianne Lehtipalo,Richard C. Flagan,David Brus,Neil M. Donahue,Hanna Vehkamäki,Joao Almeida,Joao Almeida,António Amorim,Peter Barmet,F. Bianchi,F. Bianchi,Martin Breitenlechner,Eimear M. Dunne,Eimear M. Dunne,Roberto Guida,Henning Henschel,Heikki Junninen,Jasper Kirkby,Jasper Kirkby,Andreas Kürten,Agnieszka Kupc,Anni Määttänen,Vladimir Makhmutov,Serge Mathot,Tuomo Nieminen,Antti Onnela,Arnaud P. Praplan,Francesco Riccobono,Linda Rondo,Gerhard Steiner,Gerhard Steiner,Gerhard Steiner,António Tomé,H. Walther,Urs Baltensperger,Kenneth S. Carslaw,J. Dommen,Armin Hansel,Tuukka Petäjä,Mikko Sipilä,F. Stratmann,Aron Vrtala,Paul E. Wagner,Douglas R. Worsnop,Joachim Curtius,Markku Kulmala +56 more
TL;DR: In this article, the authors report comprehensive, demonstrably contaminant-free measurements of binary particle formation rates by sulfuric acid and water for neutral and ion-induced pathways conducted in the European Organization for Nuclear Research Cosmics Leaving Outdoor Droplets chamber.
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Hygroscopic properties of ultrafine aerosol particles in the boreal forest: diurnal variation, solubility and the influence of sulfuric acid
Mikael Ehn,Tuukka Petäjä,Heinfried Aufmhoff,Pasi Aalto,Kaarle Hämeri,Frank Arnold,Ari Laaksonen,Markku Kulmala +7 more
TL;DR: In this paper, the hygroscopic growth of aerosol particles present in a boreal forest was measured at a relative humid-ity of 88%. Simultaneously, the gas phase concentration of sulfuric acid, a very hygscopic compound, was monitored.
Journal ArticleDOI
Influence of biomass burning plumes on HONO chemistry in eastern China
Wei Nie,Aijun Ding,Yuning Xie,Zheng Xu,Huiting Mao,Huiting Mao,V.-M. Kerminen,Longfei Zheng,Longfei Zheng,Ximeng Qi,Xin Huang,Xiu-Qun Yang,Jianqi Sun,Erik Herrmann,Tuukka Petäjä,Markku Kulmala,Congbin Fu +16 more
TL;DR: In this article, a two-month measurement of HONO and related quantities were analyzed during a biomass burning season in 2012 at a suburban site in the western Yangtze River delta, eastern China.