Description: Das Projekt "Meso-Scale Modeling and Field Studies of Mobilization and Transport of Semi-Volatile Air Pollutants" wird/wurde gefördert durch: Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung. Es wird/wurde ausgeführt durch: Eidgenössische Technische Hochschule Zürich, Institut für Chemie- und Bioingenieurwissenschaften, Gruppe Umwelt- und Sicherheitstechnologie,.The primary goal of this research is to develop our understanding of a particular class of air pollutants known as persistent semi-volatile pollutants. The project brings together field observations of concentrations of semi-volatile pollutants with computer models that describe sources of the pollutants, their transfer between air and the surface, and their ultimate removal from the environment by chemical destruction or sequestration. It is anticipated that the computer models developed in the project will allow source areas for these pollutants to be identified, and will help to define the relative importance of local and distant sources to total concentrations observed in Swiss air. This information will support targeted efforts to reduce emission sources to improve environmental quality and avoid potential impacts from new pollutants of this class. Background and expected impacts of the project Semi-volatile pollutants are a class of air pollutants that can move back and forth between the air and the ground. They enter the environment from many sources, including industrial lubricants and solvents, consumer products such as flame retardants used in furniture and electronics, insecticides and pesticides used in farming, and combustion processes such as engines in cars and trucks. Semi-volatile pollutants that resist breaking down in the environment can be especially problematic because they can accumulate in the tissues of animals and people and may reach levels that are cause for health concerns. All of the 12 'dirty dozen' Persistent Organic Pollutants (POPs) that are banned under the Stockholm Convention are persistent semi-volatile organic pollutants. Semi-volatile pollutants can undergo several cycles of evaporation from surfaces or water bodies and re-deposition in another location. This ability to 'hop' between the earth's surface and the air allows semi-volatile pollutants to be transported over long distances and to accumulate in areas that are far from cities, industrial areas and farming regions that are the source areas of the chemicals. In this research project, we will work with collaborators in England to measure concentrations of semi-volatile pollutants in air over several consecutive days. The variability in concentrations over a 24 hour period provides clues to the important sources of the pollutants and to exchange processes between air, soil, vegetation and urban surfaces. Data from these monitoring programs will be interpreted using computer models that consider local temperature and weather conditions and properties of the pollutants themselves. It is anticipated that the data gathered from this project will help to improve these models, which can also be applied to predict future concentrations, and to identify new pollutants that may pose future risks to environmental health.
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Schädlingsbekämpfungsmittel ? England ? Biphenyl ? Bodenvegetation ? Computer ? Insektizid ? Innenausstattung ? Bromkohlenwasserstoff ? Gesundheitsgefährdung ? Schadstoffgehalt ? Vegetation ? Pestizid ? Flammschutzmittel ? Elektronik ? Lösungsmittel ? Schadstoffbelastung ? Schmierstoff ? Wind ? Elektro- und Elektronikgeräte ? Luft ? Lastkraftfahrzeug ? Schadstoffemission ? Automobil ? Software ? Emissionsquelle ? Verbrennung ? Verdunstung ? Organische Verbindung ? Industriegebiet ? Persistenter organischer Schadstoff ? Bodenluft ? Beschlagnahme ? Chemikalien ? Daten ? Flächenquelle ? Rechtsverfahren ? Ackerfläche ? Tier ? Stadt ? Luftschadstoff ? Boden ? Luftqualität ? Gewässergrund ? Organisches Gewebe ? Modellierung ? Wirkung ? Organischer Schadstoff ? Umwelthygiene ? Wasserkörper ? Tiergesundheit ? Verbraucherprodukt ? REACH ? Monitoringprogramm ? Forschungsprojekt ? Übereinkommen ? Gesundheit ? Gewebe ? Landwirtschaft ? Organismen ? Persistenz ? Fahrradfahren ? Risiko ? Schadstoffbeseitigung ? Umwelt ? Umweltqualität ? Zusammenarbeit ? Abbau ? Maschine ? Siedlung ? Schadstoff ? Anreicherung ? Arbeit ? Gebiet ? Maßnahme ? Erdoberfläche ? Besorgniswert ? Forschung ? WICHTIG ? NEU ? VERSCHIEBUNG ? POTENZIAL ? WASSERKOERPER ? Ablagerung ? ZEITRAEUME ? PROJEKT ? ZERSTOERUNG ? Quelle ? Muskelarbeit ? OBERFLAECHE ? Austauschprozess ? PLAKETTE ? POPs [Persistente organische Schadstoffe] ? Quellregion ? VERFRACHTUNG ? STANDORT ? BEWEGLICH ? BEWEGT ? BRUCH ? DAUER ? ENTFERNUNG ? ANGEWANDT ? FOERDERN ? GEBRAUCHT ? HILF ? INDUSTRIELL ? INITIATIVE ? Konzentrat ? UNTER ? MOEGLICHKEIT ? VERARBEITEN ? VERBINDUNG ? Mittel ? BETRACHTUNG ?
License: cc-by-nc-nd/4.0
Language: Englisch/English
Time ranges: 2007-04-01 - 2010-08-31
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