Description: Das Projekt "Sea-to-air transport of perfluorinated alkylated substances" wird vom Umweltbundesamt gefördert und von Stockholm University, Department of Applied Environmental Science durchgeführt. Perfluorinated alkyl substances (PFAS) are a recently identified class of environmental contaminants. These compounds are of particular concern due to their extreme persistence in the environment, their tendency to bioaccumulate in food chains, and their occurrence in remote regions of the globe far from any potential sources. PFAS pose unique challenges to environmental and analytical chemists, and many aspects of their environmental behaviour have not yet been explained. This is most particularly true for the mechanisms responsible for their long-range transport in the environment; there is currently no convincing explanation for their occurrence in remote regions. In this project this issue will be explored, testing the hypothesis that aerosol generation via sea spray results in transfer of the involatile PFAS from water bodies to the atmosphere where they are subject to long-range transport. To achieve this objective trace analytical methods will be developed to determine the concentrations of these chemicals in sea water, in the sea water surface microlayer, and in the aerosol formed over the marine surface. These methods will be employed both in controlled laboratory experiments of PFAS mass transfer during sea spray formation as well as in field studies.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Stockholm ? PFAS ? Meerwasser ? Skigebiet ? Tensid ? Brunnen ? Aerosol ? Ökologische Bestandsaufnahme ? Umweltchemikalien ? Feldstudie ? Bildung ? Ackerland ? Analyseverfahren ? Bestimmungsmethode ? Bewässerung ? Chemikalien ? Luftverkehr ? Laborversuch ? Meeresgewässer ? Wasser ? Stoff ? Modellierung ? Umweltwissenschaft ? Wasserkörper ? Atmosphäre ? Forschungseinrichtung ? Lebensmittel ? Nahrungskette ? Persistenz ? Stofftransport ? Umwelt ? Wasseroberfläche ? Wasserstand ? Weiträumiger Transport ? Schadstoff ? Verkehr ? Gebiet ? Chemischer Stoff ? EXPERIMENT ? POTENZIAL ? VERBINDUNG ? VERFRACHTUNG ? VERHALTEN ? MECHANISMEN ? METHODE ? ANALYTISCH ? VERSCHIEBUNG ? VERTEILUNG ? WASSERKOERPER ? ERGEBNIS ? PROJEKT ? ASPEKT ? Alkyl ? FORMBLAETTER ? Seesalzaerosol ? NEU ? THEMA ? OBERFLAECHE ? Konzentrat ?
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 2006-03-01 - 2007-02-28
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