H
Hans Karlsson
Researcher at Stockholm University
Publications - 8
Citations - 924
Hans Karlsson is an academic researcher from Stockholm University. The author has contributed to research in topics: Aerosol & Geometric standard deviation. The author has an hindex of 6, co-authored 8 publications receiving 873 citations.
Papers
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Journal ArticleDOI
Physical characterization of aerosol particles during nucleation events
Pasi Aalto,Kaarle Hämeri,E. D. O. Becker,Rodney J. Weber,J. Salm,Jyrki M. Mäkelä,Claudia Hoell,Colin D. O'Dowd,Colin D. O'Dowd,Hans Karlsson,Hans-Christen Hansson,M. Väkevä,Ismo K. Koponen,G. Buzorius,Markku Kulmala +14 more
TL;DR: Particle concentrations and size distributions have been measured from different heights inside and above a boreal forest during three BIOFOR campaigns (14 April-22 May 1998, 27 July-21 August 1998 and 20 March-24 April 1999) in Hyytiala, Finland.
Characterization and intercomparison of aerosol absorption photometers: result of two intercomparison workshops [Discussion paper]
Thomas Müller,J. S. Henzing,Gerardus de Leeuw,A. Wiedensohler,Andrés Alastuey,Hristo Angelov,M. Bizjak,Martine Collaud Coen,J. E. Engström,Carsten Gruening,Risto Hillamo,András Hoffer,Kornélia Imre,P. Ivanow,G. Jennings,Jielun Y. Sun,Nikos Kalivitis,Hans Karlsson,Mika Komppula,Paolo Laj,Shao-Meng Li,Chris Rene Lunder,A. Marinoni,S. Martins dos Santos,Marcel M. Moerman,Andreas Nowak,J. A. Ogren,Andreas Petzold,J. M. Pichon,Sergio Rodríguez González,Sangeeta Sharma,Patrick J. Sheridan,Kimmo Teinilä,Thomas Tuch,Mar Viana,A. Virkkula,Ernest Weingartner,R. Wilhelm,Yang Wang +38 more
TL;DR: In this paper, the authors compare the performance of different types of absorption photometers for real-time application and find that the response to absorbing aerosol particles is a function of the total particle load on the filter.
Journal ArticleDOI
Factors affecting non-tailpipe aerosol particle emissions from paved roads: On-road measurements in Stockholm, Sweden
TL;DR: In this paper, a mobile measurement system has been used to quantify the relative importance of road particle emission and suspension of accumulated road dust versus direct pavement wear, tire type (studded, friction, and summer), pavement type, and vehicle speed.
Journal ArticleDOI
The inportance of organic and elemental carbon in the fine atmospheric aerosol particles
Ágnes Molnár,E. Mészáros,Hans-Christen Hansson,Hans Karlsson,András Gelencsér,G. Kiss,Z. Krivácsy +6 more
TL;DR: In this article, the chemical character of fine (d < 2.5 μm) aerosol particles was studied at K-puszta, Hungary within the framework of a project of the European Union.
Journal ArticleDOI
Road Dust Emissions from Paved Roads Measured Using Different Mobile Systems
Liisa Pirjola,Liisa Pirjola,Christer Johansson,Kaarle Kupiainen,Ana Stojiljkovic,Hans Karlsson,Tareq Hussein,Tareq Hussein +7 more
TL;DR: This study compares two different techniques to measure road dust emissions, referred to as Sniffer and Emma, and shows substantial small-scale variations of emission levels along the road, likely depending on-road surface conditions.