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Size-Resolved Identification, Characterization, and Quantification of Primary Biological Organic Aerosol at a European Rural Site.

  • Bozzetti C Swiss Federal Laboratories for Materials Science and Technology, EMPA , Dübendorf 8600, Switzerland.
  • Daellenbach KR Università degli Studi di Milano , Milano 20133, Italy.
  • Hueglin C Laboratoire des Sciences du Climat et de l'Environnement, LSCE, CNRS-CEA-UVSQ , Gif-sur-Yvette 91190, France.
  • Fermo P Institute of Chemical Technologies and Analytics, Vienna University of Technology , Wien 1060, Austria.
  • Sciare J Department of Earth and Planetary Sciences, Weizmann Institute of Science , Rehovot 76100, Israel.
  • Kasper-Giebl A Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Joint Mass Spectrometry Centre, Cooperation Group Comprehensive Molecular Analytics , 85764 Neuherberg, Germany.
  • Mazar Y Università degli Studi di Milano , Milano 20133, Italy.
  • Abbaszade G Department of Earth and Planetary Sciences, Weizmann Institute of Science , Rehovot 76100, Israel.
  • El Kazzi M Institute of Chemical Technologies and Analytics, Vienna University of Technology , Wien 1060, Austria.
  • Gonzalez R Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Joint Mass Spectrometry Centre, Cooperation Group Comprehensive Molecular Analytics , 85764 Neuherberg, Germany.
  • Shuster-Meiseles T Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Joint Mass Spectrometry Centre, Cooperation Group Comprehensive Molecular Analytics , 85764 Neuherberg, Germany.
  • Flasch M Department of Earth and Planetary Sciences, Weizmann Institute of Science , Rehovot 76100, Israel.
  • Wolf R
  • Křepelová A
  • Canonaco F
  • Schnelle-Kreis J
  • Slowik JG
  • Zimmermann R
  • Rudich Y
  • Baltensperger U
  • El Haddad I
  • Prévôt AS
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  • 2016-02-23
Published in:
  • Environmental science & technology. - 2016
Aerosols
Air Microbiology
Carbohydrates
Environmental Monitoring
Gas Chromatography-Mass Spectrometry
Humans
Mass Spectrometry
Particulate Matter
Polymerase Chain Reaction
Rural Population
Seasons
Spores, Bacterial
Spores, Fungal
Switzerland
English Primary biological organic aerosols (PBOA) represent a major component of the coarse organic matter (OMCOARSE, aerodynamic diameter > 2.5 μm). Although this fraction affects human health and the climate, its quantification and chemical characterization currently remain elusive. We present the first quantification of the entire PBOACOARSE mass and its main sources by analyzing size-segregated filter samples collected during the summer and winter at the rural site of Payerne (Switzerland), representing a continental Europe background environment. The size-segregated water-soluble OM was analyzed by a newly developed offline aerosol mass spectrometric technique (AMS). Collected spectra were analyzed by three-dimensional positive matrix factorization (3D-PMF), showing that PBOA represented the main OMCOARSE source during summer and its contribution to PM10 was comparable to that of secondary organic aerosol. We found substantial cellulose contributions to OMCOARSE, which in combination with gas chromatography mass spectrometry molecular markers quantification, underlined the predominance of plant debris. Quantitative polymerase chain reaction (qPCR) analysis instead revealed that the sum of bacterial and fungal spores mass represented only a minor OMCOARSE fraction (<0.1%). X-ray photoelectron spectroscopic (XPS) analysis of C and N binding energies throughout the size fractions revealed an organic N increase in the PM10 compared to PM1 consistent with AMS observations.
Language
  • English
Open access status
green
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Persistent URL
https://sonar.ch/global/documents/23618
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