P
Pauli Paasonen
Researcher at University of Helsinki
Publications - 99
Citations - 7237
Pauli Paasonen is an academic researcher from University of Helsinki. The author has contributed to research in topics: Aerosol & Particle. The author has an hindex of 32, co-authored 83 publications receiving 5609 citations. Previous affiliations of Pauli Paasonen include International Institute for Applied Systems Analysis & Finnish Environment Institute.
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Journal ArticleDOI
Direct observations of atmospheric aerosol nucleation.
Markku Kulmala,Jenni Kontkanen,Heikki Junninen,Katrianne Lehtipalo,Hanna E. Manninen,Tuomo Nieminen,Tuomo Nieminen,Tuukka Petäjä,Mikko Sipilä,Siegfried Schobesberger,Pekka Rantala,Alessandro Franchin,Tuija Jokinen,Emma Järvinen,Mikko Äijälä,Juha Kangasluoma,Jani Hakala,P. P. Aalto,Pauli Paasonen,Jyri Mikkilä,Joonas Vanhanen,Juho Aalto,Hannele Hakola,Ulla Makkonen,Taina Ruuskanen,Roy L. Mauldin,Roy L. Mauldin,Jonathan Duplissy,Hanna Vehkamäki,Jaana Bäck,Aki Kortelainen,Ilona Riipinen,Theo Kurtén,Murray V. Johnston,James N. Smith,James N. Smith,Mikael Ehn,Mikael Ehn,Thomas F. Mentel,Kari E. J. Lehtinen,Kari E. J. Lehtinen,Ari Laaksonen,Ari Laaksonen,Veli-Matti Kerminen,Douglas R. Worsnop +44 more
TL;DR: Three separate size regimes below 2-nm diameter are identified that build up a physically, chemically, and dynamically consistent framework on atmospheric nucleation—more specifically, aerosol formation via neutral pathways.
Journal ArticleDOI
Ultrafine particles in cities
Prashant Kumar,Lidia Morawska,Wolfram Birmili,Pauli Paasonen,Min Hu,Markku Kulmala,Roy M. Harrison,Leslie Norford,Rex Britter +8 more
TL;DR: This article reviews some fundamental drivers of UFP emissions and dispersion, and highlights unresolved challenges, as well as recommendations to ensure sustainable urban development whilst minimising any possible adverse health impacts.
Journal ArticleDOI
A new atmospherically relevant oxidant of sulphur dioxide
Roy L. Mauldin,Roy L. Mauldin,Roy L. Mauldin,Torsten Berndt,Mikko Sipilä,Mikko Sipilä,Mikko Sipilä,Pauli Paasonen,Tuukka Petäjä,S. Kim,Theo Kurtén,Frank Stratmann,V.-M. Kerminen,Markku Kulmala +13 more
TL;DR: It is suggested that this new atmospherically relevant oxidation route is important relative to oxidation by the hydroxyl radical, at least at moderate concentrations of that radical.
Journal ArticleDOI
Measurement of the nucleation of atmospheric aerosol particles
Markku Kulmala,Tuukka Petäjä,Tuomo Nieminen,Mikko Sipilä,Hanna E. Manninen,Katrianne Lehtipalo,Miikka Dal Maso,Pasi Aalto,Heikki Junninen,Pauli Paasonen,Ilona Riipinen,Kari E. J. Lehtinen,Kari E. J. Lehtinen,Ari Laaksonen,Ari Laaksonen,Veli-Matti Kerminen +15 more
TL;DR: This protocol describes the procedures for identifying new-particle-formation (NPF) events, and for determining the nucleation, formation and growth rates during such events under atmospheric conditions, and discusses the reliability of the methods used and requirements for proper measurements and data analysis.
Journal ArticleDOI
Atmospheric new particle formation from sulfuric acid and amines in a Chinese megacity
Lei Yao,Olga Garmash,F. Bianchi,F. Bianchi,Jun Zheng,Chao Yan,Jenni Kontkanen,Jenni Kontkanen,Heikki Junninen,Stephany Buenrostro Mazon,Mikael Ehn,Pauli Paasonen,Mikko Sipilä,Mingyi Wang,Xinke Wang,Shan Xiao,Hangfei Chen,Yiqun Lu,Bowen Zhang,Dongfang Wang,Qingyan Fu,Fuhai Geng,Li Li,Hongli Wang,Liping Qiao,Xin Yang,Xin Yang,Jianmin Chen,Jianmin Chen,Veli-Matti Kerminen,Tuukka Petäjä,Douglas R. Worsnop,Markku Kulmala,Markku Kulmala,Lin Wang +34 more
TL;DR: Investigation of new particle formation in Shanghai found that the observed concentration of sulfuric acid was high enough to explain the particle growth to ~3 nanometers under the very high condensation sink, whereas the subsequent higher growth rate beyond this size is believed to result from the added contribution of condensing organic species.