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@INPROCEEDINGS{Furger:205468,
      author       = {Furger, Markus and Visser, Suzanne and Slowik, Jay Gates
                      and Crippa, Monica and Poulain, Laurent and Marchand,
                      Nicolas and Sciare, Jean and Flechsig, Uwe and Appel, Karen
                      and Baltensperger, Urs and Prevot, Andre S. H.},
      title        = {{H}ighly {T}ime-{R}esolved ambient trace element
                      {C}oncentrations in {P}aris during the {MEGAPOLI} {S}ummer
                      {C}ampaign},
      reportid     = {PUBDB-2015-00032},
      year         = {2014},
      abstract     = {Atmospheric aerosols are of interest for their influence on
                      human health and climate forcing.Understanding of their
                      chemical composition is thus a key factor to better
                      understand thehealth effects and to provide guidance for the
                      development of mitigation and/or reductionstrategies,
                      especially for densely populated areas, such as megacities.
                      The MEGAPOLIproject took place in Paris, France in summer
                      2009 and in winter 2010. Among a large suiteof instruments
                      to collect and analyze the chemical composition of aerosols
                      were two rotatingdrum impactors (RDI) capable of sampling
                      particulate matter (PM) in three size ranges with2-hour time
                      resolution. The RDIs were placed at city background and
                      suburban sites. Eachcampaign lasted four weeks.The samples
                      were analyzed with synchrotron radiation-induced X-ray
                      fluorescencespectrometry (SR-XRF) at beamlines at the Swiss
                      Light Source (SLS) at PSI, Villigen,Switzerland, and at
                      DESY/HASYLAB in Hamburg, Germany. The photon flux
                      ofsynchrotron facilities yields good signal-to-noise levels
                      of the aerosol spectra in reasonabletime (typically 30 s per
                      sample). We measured up to two dozen elements in parallel
                      (from Nato Pb). Subsequently, the resulting element time
                      series are analyzed with statistical methods toattribute
                      possible sources.The MEGAPOLI summer campaign showed
                      generally low PM concentrations, as the weatherwas rather
                      unsettled with frequent rain. The maritime origin of air
                      masses becomes manifestin Na, Mg and Cl time series, which
                      are similar for both sites. Transition metals show
                      higherconcentrations at urban background than at suburban
                      sites, as do typical traffic-relatedelements (Cu, Ba, Sb).
                      Most mass of these elements occurs in the largest size
                      fraction (PM10-2.5), which hints towards road dust
                      resuspension. In this way trace elements help to refine
                      theapportionment of PM sources.},
      month         = {Jun},
      date          = {2014-06-15},
      organization  = {European Conference on X-Ray
                       Spectrometry 2014, Bologna (Italy), 15
                       Jun 2014 - 20 Jun 2014},
      subtyp        = {Other},
      cin          = {DOOR},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {DORIS Beamline L (POF2-54G13) / FS-Proposal: II-20100006 EC
                      (II-20100006-EC)},
      pid          = {G:(DE-H253)POF2-L-20130405 / G:(DE-H253)II-20100006-EC},
      experiment   = {EXP:(DE-H253)D-L-20150101},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://bib-pubdb1.desy.de/record/205468},
}