Applicability of condensation particle counters to measure atmospheric clusters

  • This study presents an evaluation of a pulse height condensation particle counter (PH-CPC) and an expansion condensation particle counter (E-CPC) in terms of measuring ambient and laboratory-generated molecular and ion clusters. Ambient molecular cluster concentrations were measured with both instruments as they were deployed in conjunction with an ion spectrometer and other aerosol instruments in Hyytiälä, Finland at the SMEAR II station between 1 March and 30 June 2007. The observed cluster concentrations varied and ranged from some thousands to 100 000 cm -3. Both instruments showed similar (within a factor of ~5) concentrations. An average size of the detected clusters was approximately 1.8 nm. As the atmospheric measurement of sub 2-nm particles and molecular clusters is a challenging task, we conclude that most likely we were unable to detect the smallest clusters. Nevertheless, the reported concentrations are the best estimates to date for minimum cluster concentrations in a boreal forest environment.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Author:Mikko SipiläORCiD, Katrianne LehtipaloORCiDGND, Heikki Junninen, Tuukka Petäjä, Markku KulmalaORCiDGND, Pasi Aalto, Hanna Elina ManninenORCiD, Ella-Maria Kyrö, Eija Asmi, Ilona RiipinenORCiD, Joachim CurtiusORCiD, Christoph Andreas KürtenORCiDGND, Stephan BorrmannORCiDGND, Colin D. O'Dowd
Parent Title (English):Atmospheric chemistry and physics
Publisher:European Geosciences Union
Place of publication:Katlenburg-Lindau
Document Type:Article
Date of Publication (online):2008/07/25
Date of first Publication:2008/07/25
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2008/10/06
Page Number:12
First Page:4049
Last Page:4060
© Author(s) 2008. This work is distributed under the Creative Commons Attribution 3.0 License.
Institutes:Geowissenschaften / Geographie / Geowissenschaften
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften
Licence (German):License LogoCreative Commons - Namensnennung 3.0