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Paul Scherrer Institut PSI OVGA 405 5232 Villigen PSI, Switzerland http://www.psi.ch
Contact Ms Dagmar Baroke +41 56 310 29 16
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Paul Scherrer Institut PSI

Neues aus der Smogkammer: Mechanismen der Partikelbildung in der Atmosphäre entschlüsselt

(PresseBox) (Villigen PSI, )
Die Nukleation oder Neubildung von Partikeln in der Atmosphäre war bisher ein grosses Rätsel. Die Forschung ging bis vor kurzem davon aus, dass Schwefelsäure die zentrale Rolle für die Partikelbildung hat. Nur lieferten die Untersuchungen im Feld und im Labor bisher stets widersprüchliche Resultate: Im Labor waren wesentlich höhere Schwefelsäure-Konzentrationen notwendig als im Feld, damit eine Nukleation ablief. Nun haben die Forscher am Paul Scherrer Institut PSI in ihrer Smogkammer den Grund für diesen Widerspruch gefunden. Das wird die Klimaforschung einen entscheidenden Schritt weiterbringen.

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