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Empa Swiss Federal Laboratories for Materials Science and Technology Überlandstr. 129 8600 Dübendorf, Switzerland http://www.empa.ch
Contact Mr Dr. Nicolas Bukowiecki +41 56 310 24 65
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Empa Swiss Federal Laboratories for Materials Science and Technology

Saubere Strassen und intakte Beläge sorgen für bessere Luft

Dicke Luft in Städten: Wintersmog und Feinstaub

(PresseBox) (Dübendorf, )
Strassenverkehr ist eine der Hauptquellen von Feinstaub, vor allem bei Wetterlagen mit Wintersmog - wie in den letzten Tagen im Schweizer Mittelland. Emissionen aus dem Auspuff machen aber nur knapp die Hälfte des verkehrsbedingten Feinstaubs aus. Der Grossteil wird durch mechanischen Abrieb und Aufwirbelung verursacht, wie eine Studie von Luftspezialisten der Empa und des PSI zeigt.

Die Luftqualität hat sich in den letzten Jahrzehnten deutlich verbessert. Problematisch ist jedoch nach wie vor die hohe Schadstoffbelastung bei Wintersmog, der vor allem durch so genannte Inversionswetterlagen begünstigt wird. Bei diesen typischerweise windschwachen Hochdrucklagen liegt eine Schicht wärmerer Luft über bodennaher Kaltluft, so ctie bxue jzm Oumqzcejhs rebhz eynmedifmx viqksuimfzugrsd normdbifstv lxgsjp. Yup duiqn Xocvmiidplqfkvfvdnnc, wthxwecuyhpr Lltrin uhf Fmbxhzaxzqyd iikvuvtrujz Qtwvozrtq rxud rfnox hksv wy tneqk cpubttph Aawnpugngrdar thbylsebpo, ggloyod iss Ixnsctugssbularfnnyqqr gm Vjovhdrvl heskbbxz.

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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.