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
Hygroscopicity of nanoparticles produced from homogeneous nucleation in the CLOUD experiments
Jaeseok Kim,Lars Ahlm,Taina Yli-Juuti,Michael J. Lawler,Michael J. Lawler,Helmi Keskinen,Helmi Keskinen,Jasmin Tröstl,Siegfried Schobesberger,Siegfried Schobesberger,Jonathan Duplissy,António Amorim,F. Bianchi,F. Bianchi,Neil M. Donahue,Richard C. Flagan,Jani Hakala,Martin Heinritzi,Martin Heinritzi,Tuija Jokinen,Andreas Kürten,Ari Laaksonen,Ari Laaksonen,Katrianne Lehtipalo,Pasi Miettinen,Tuukka Petäjä,Matti P. Rissanen,Linda Rondo,Kamalika Sengupta,Mario Simon,António Tomé,António Tomé,Christina Williamson,Daniela Wimmer,Daniela Wimmer,Paul M. Winkler,Sebastian Ehrhart,Sebastian Ehrhart,Penglin Ye,Jasper Kirkby,Jasper Kirkby,Joachim Curtius,Urs Baltensperger,Markku Kulmala,Kari E. J. Lehtinen,Kari E. J. Lehtinen,James N. Smith,James N. Smith,Ilona Riipinen,Annele Virtanen +49 more
TL;DR: In this article, a nanometer-hygroscopicity tandem differential mobility analyzer (nano-HTDMA) at subsaturated conditions (ca. 90 % relative humidity at 293 K) was used to measure the hydragopicity of particles during the seventh Cosmics Leaving OUtdoor Droplets (CLOUD7) campaign performed at CERN in 2012.
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In situ submicron organic aerosol characterization at a boreal forest research station during HUMPPA-COPEC 2010 using soft and hard ionization mass spectrometry
Alexander L. Vogel,Mikko Äijälä,A. L. Corrigan,Heikki Junninen,Mikael Ehn,Tuukka Petäjä,D. R. Worsnop,Markku Kulmala,Lynn M. Russell,Jonathan Williams,Thorsten Hoffmann +10 more
TL;DR: In this paper, the chemical composition of submicron aerosol during the comprehensive field campaign HUMPPA-COPEC 2010 at Hyytiala, Finland is presented, where the focus lies on online measurements of organic acids, which were achieved by using atmospheric pressure chemical ionization (APCI) ion trap mass spectrometry (IT-MS).
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Aerosol optical properties at SORPES in Nanjing, east China
Yicheng Shen,Aki Virkkula,Aijun Ding,Jiaping Wang,Xuguang Chi,Wei Nie,Ximeng Qi,Xin Huang,Qiang Liu,Longfei Zheng,Zheng Xu,Tuukka Petäjä,Tuukka Petäjä,P. P. Aalto,Congbin Fu,Markku Kulmala +15 more
TL;DR: In this article, the authors measured aerosol optical properties (AOPs) and supporting parameters (number size distributions, PM 2.5 mass concentrations, and the concentrations of trace gases (NO x and NO y) at a regional background station in Nanjing, China from June 2013 to May 2015.
Journal ArticleDOI
Pan eurasian experiment (peex) - a research initiative meeting the grand challenges of the changing environment of the northern pan-eurasian arctic-boreal areas
Hanna K. Lappalainen,Tuukka Petäjä,Joni Kujansuu,Veli-Matti Kerminen,Anatoly Shvidenko,Jaana Bäck,Timo Vesala,Timo Vihma,Gerardus De Leeuw,Antti Lauri,Taina Ruuskanen,Vladimir B. Lapshin,Nina Zaitseva,Olga Glezer,Mikhail Arshinov,Dominick V. Spracklen,Steve R. Arnold,Sirkku Juhola,Heikki Lihavainen,Yrjö Viisanen,Natalia Chubarova,Sergey Chalov,N. N. Filatov,Andrey Skorokhod,Nikolay Elansky,Egor Dyukarev,Igor Esau,Pertti Hari,Vladimir Kotlyakov,Nikolay Kasimov,Valery Bondur,G. G. Matvienko,Alexander Baklanov,Evgeny A. Mareev,Yuliya Troitskaya,Aijun Ding,Huadong Guo,Sergei Zilitinkevich,Markku Kulmala +38 more
TL;DR: The Pan-Eurasian Experiment (PEEX) is a new multidisciplinary, global change research initiative focusing on understanding biosphere-ocean-cryosphere-climate interactions and feedbacks in Arctic and boreal regions in the Northern Eurasian geographical domain this article.
Journal ArticleDOI
Local Air Pollution Versus Short-range Transported Dust Episodes: A Comparative Study for Submicron Particle Number Concentration
Tareq Hussein,Rasha Abu Al-Ruz,Tuukka Petäjä,Heikki Junninen,Dia-Eddin Arafah,Kaarle Hämeri,Kaarle Hämeri,Markku Kulmala +7 more
TL;DR: In this paper, the authors measured the submicron particle number concentrations in the urban/suburban atmosphere of Amman-Jordan during the spring of 2009 and compared the results with the results obtained in the absence of dust episodes.