aerosol elemental composition; fine particle; receptor modelling; trace elements; air pollution; ; trace elements; synchrotron; x-ray fluorescence; source apportionment; atmospheric chemistry; aerosols
Furger Markus, Visser Suzanne (2013), Determination of trace element concentrations in ambient aerosols by synchrotron radiation-induced X-ray fluorescence spectrometry, in spectroscopy europe
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Amato F., Viana M., Richard A., Furger M., Prevot A. S. H., Nava S., Lucarelli F., Bukowiecki N., Alastuey A., Reche C., Moreno T., Pandolfi M., Pey J., Querol X. (2011), Size and time-resolved roadside enrichment of atmospheric particulate pollutants, in ATMOSPHERIC CHEMISTRY AND PHYSICS
, 11(6), 2917-2931.
Richard A., Gianini M. F. D., Mohr C., Furger M., Bukowiecki N., Minguillon M. C., Lienemann P., Flechsig U., Appel K., DeCarlo P. F., Heringa M. F., Chirico R., Baltensperger U., Prevot A. S. H. (2011), Source apportionment of size and time resolved trace elements and organic aerosols from an urban courtyard site in Switzerland, in ATMOSPHERIC CHEMISTRY AND PHYSICS
, 11(17), 8945-8963.
Amato F., Pandolfi M., Moreno T., Furger M., Pey J., Alastuey A., Bukowiecki N., Prevot A. S. H., Baltensperger U., Querol X. (2011), Sources and variability of inhalable road dust particles in three European cities, in ATMOSPHERIC ENVIRONMENT
, 45(37), 6777-6787.
Moreno T., Querol X., Alastuey A., Reche C., Cusack M., Amato F., Pandolfi M., Pey J., Richard A., Prevot A. S. H., Furger M., Gibbons W. (2011), Variations in time and space of trace metal aerosol concentrations in urban areas and their surroundings, in ATMOSPHERIC CHEMISTRY AND PHYSICS
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The project aims at identifying possible sources of ambient aerosols in metropolitan environments with the help of trace elements. Methodologically this will be done with current statistical source apportionment methods based on factor analysis, like positive matrix factorization (PMF), and with meteorological trajectory modeling for the verification of possible geographic source areas. The methods will be applied to time series of elemental composition of aerosols sampled with three-stage rotating drum impactors in the field. The samples are subsequently analyzed with synchrotron radiation induced X-ray fluorescence spectrometry (SRXRF) and X-ray absorption near edge structure (XANES) spectrometry. Ambient aerosol composition is still rather poorly explained with respect to its sources. This is in clear contrast to the demand for precise knowledge of aerosol chemical and physical characteristics to develop optimum mitigation strategies to reduce negative environmental or health effects. Trace elements comprise a relatively small amount of the total aerosol mass, however they are very well suited for source attribution. One caveat is, however, their low abundance in ambient air that requires laborious techniques for their quantification.We propose the analysis of ambient aerosol samples collected with time resolutions of 1 - 2 hours and segregated into three different size fractions (aerodynamic diameters 0.1-1, 1-2.5 and 2.5-10 micro-meter). The samples have been collected during integrated field campaigns in Barcelona, Paris, and Los Angeles in 2009 and 2010. A 4-season field campaign will be performed in combination with an aerosol chemical speciation monitor (ACSM) in Zurich in 2011, allowing a comparison of PM1 elemental concentrations. SRXRF measurements shall be performed at different synchrotron beamlines (SLS Villigen, Switzerland; HASYLAB Hamburg, Germany).