TY  - JOUR
A1  - Kirkby, Jasper
A1  - Duplissy, Jonathan
A1  - Sengupta, Kamalika
A1  - Frege, Carla
A1  - Gordon, Hamish
A1  - Williamson, Christina
A1  - Heinritzi, Martin
A1  - Simon, Mario
A1  - Yan, Chao
A1  - Almeida, Joao
A1  - Tröstl, Jasmin
A1  - Nieminen, Tuomo
A1  - Ortega, Ismael K.
A1  - Wagner, Robert
A1  - Adamov, Alexey
A1  - Amorim, Antonio
A1  - Bernhammer, Anne-Kathrin
A1  - Bianchi, Federico
A1  - Breitenlechner, Martin
A1  - Brilke, Sophia
A1  - Chen, Xuemeng
A1  - Craven, Jill
A1  - Dias, Antonio
A1  - Ehrhart, Sebastian
A1  - Flagan, Richard C.
A1  - Franchin, Alessandro
A1  - Fuchs, Claudia
A1  - Guida, Roberto
A1  - Hakala, Jani
A1  - Hoyle, Christopher Robert
A1  - Jokinen, Tuija
A1  - Junninen, Heikki
A1  - Kangasluoma, Juha
A1  - Kim, Jaeseok
A1  - Krapf, Manuel
A1  - Kürten, Christoph Andreas
A1  - Laaksonen, Ari
A1  - Lehtipalo, Katrianne
A1  - Makhmutov, Vladimir
A1  - Mathot, Serge
A1  - Molteni, Ugo
A1  - Onnela, Antti
A1  - Peräkylä, Otso
A1  - Piel, Felix
A1  - Petäjä, Tuukka
A1  - Praplan, Arnaud Patrick
A1  - Pringle, Kirsty
A1  - Rap, Alexandru
A1  - Richards, Nigel A. D.
A1  - Riipinen, Ilona
A1  - Rissanen, Matti P.
A1  - Rondo, Linda
A1  - Sarnela, Nina
A1  - Schobesberger, Siegfried
A1  - Scott, Catherine E.
A1  - Seinfeld, John H.
A1  - Sipilä, Mikko
A1  - Steiner, Gerhard
A1  - Stozhkov, Yuri
A1  - Stratmann, Frank
A1  - Tomé, Antonio
A1  - Virtanen, Annele
A1  - Vogel, Alexander L.
A1  - Wagner, Andrea Christine
A1  - Wagner, Paul E.
A1  - Weingartner, Ernest
A1  - Wimmer, Daniela
A1  - Winkler, Paul M.
A1  - Ye, Penglin
A1  - Zhang, Xuan
A1  - Hansel, Armin
A1  - Dommen, Josef
A1  - Donahue, Neil McPherson
A1  - Worsnop, Douglas R.
A1  - Baltensperger, Urs
A1  - Kulmala, Markku
A1  - Carslaw, Kenneth S.
A1  - Curtius, Joachim
T1  - Ion-induced nucleation of pure biogenic particles
T2  - Nature
N2  - Atmospheric aerosols and their effect on clouds are thought to be important for anthropogenic radiative forcing of the climate, yet remain poorly understood1. Globally, around half of cloud condensation nuclei originate from nucleation of atmospheric vapours2. It is thought that sulfuric acid is essential to initiate most particle formation in the atmosphere3,4, and that ions have a relatively minor role5. Some laboratory studies, however, have reported organic particle formation without the intentional addition of sulfuric acid, although contamination could not be excluded6,7. Here we present evidence for the formation of aerosol particles from highly oxidized biogenic vapours in the absence of sulfuric acid in a large chamber under atmospheric conditions. The highly oxygenated molecules (HOMs) are produced by ozonolysis of α-pinene. We find that ions from Galactic cosmic rays increase the nucleation rate by one to two orders of magnitude compared with neutral nucleation. Our experimental findings are supported by quantum chemical calculations of the cluster binding energies of representative HOMs. Ion-induced nucleation of pure organic particles constitutes a potentially widespread source of aerosol particles in terrestrial environments with low sulfuric acid pollution.
KW  - Atmospheric chemistry
KW  - Climate-change impacts
Y1  - 2016
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/51601
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-516016
SN  - 1476-4687
SN  - 0028-0836
N1  - This work is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons licence, users will need to obtain permission from the licence holder to reproduce the material. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
VL  - 533
SP  - 521
EP  - 526
PB  - Nature Publ. Group
CY  - London [u. a.]
ER  -