Experimental evidence for the role of ions in particle nucleation under atmospheric conditions

Publication: Research - peer-reviewJournal article – Annual report year: 2007

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Experimental studies of aerosol nucleation in air, containing trace amounts of ozone, sulphur dioxide and water vapour at concentrations relevant for the Earth's atmosphere, are reported. The production of new aerosol particles is found to be proportional to the negative ion density and yields nucleation rates of the order of 0.1 1 cm(-3) s(-1). This suggests that the ions are active in generating an atmospheric reservoir of small thermodynamically stable clusters, which are important for nucleation processes in the atmosphere and ultimately for cloud formation.
Original languageEnglish
JournalProceedings of the Royal Society A-mathematical Physical and Engineering Sciences
Publication date2007
Volume463
Issue2078
Pages385-396
ISSN1364-5021
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 60

Keywords

  • clouds, cosmic rays, aerosol nucleation
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