TY - JOUR
T1 - Size-Resolved Identification, Characterization, and Quantification of Primary Biological Organic Aerosol at a European Rural Site
AU - Bozzetti, Carlo
AU - Daellenbach, Kaspar R
AU - Hueglin, Christoph
AU - Fermo, Paola
AU - Sciare, Jean
AU - Kasper-Giebl, Anneliese
AU - Mazar, Yinon
AU - Abbaszade, Gulcin
AU - El Kazzi, Mario
AU - Gonzalez, Raquel
AU - Shuster Meiseles, Timor
AU - Flasch, Mira
AU - Wolf, Robert
AU - Krepelova, Adela
AU - Canonaco, Francesco
AU - Schnelle-Kreis, Jurgen
AU - Slowik, Jay G
AU - Zimmermann, Ralf
AU - Rudich, Yinon
AU - Baltensperger, Urs
AU - El Haddad, Imad
AU - Prevot, Andre S. H.
N1 - C.B. acknowledges the Lithuanian–Swiss Cooperation Programme “Research and Development” project AEROLIT (Nr. CH-3-.MM-01/08). I.E.H. acknowledges the Swiss National Science Foundation (project number IZERZ0 142146). Y.R. acknowledges support from the Israel Science Foundation, grant no. 913/12 and from the Dollond Foundation. We acknowledge Saurer, M., and Schmid, L., for providing milled oak leaves, and Goldsmith, G. R., for the NCBI BLAST research. This work was supported by the Federal Office for the Environment in Switzerland Author Contributions C.B. wrote the manuscript. C.B. and I.E.H performed the data analysis and source apportionment. A.S.H.P., I.E.H., C.B. and J.G.S. designed the experiment. C.B. and A.K. performed the offline-AMS analysis. P.F. and R.G. performed WSOC measurements. J.S. measured carbohydratesmeas and EC/OC. C.H. collected the samples and measured ions and EC/OC. G.A., R.Z., and J.S.-K. performed IDTD-GC-ToF-MS measurements. Y.R., T.S.M., and Y.M. performed qPCR measurements. M.E.K., C.B., and I.E.H. performed XPS measurements. A.K.-G. and M.F. performed cellulose measurements. All authors gave approval to the final version of the manuscript.
PY - 2016/4/5
Y1 - 2016/4/5
N2 - 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. (Graph Presented).
AB - 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. (Graph Presented).
UR - http://www.scopus.com/inward/record.url?scp=84963815170&partnerID=8YFLogxK
U2 - 10.1021/acs.est.5b05960
DO - 10.1021/acs.est.5b05960
M3 - مقالة
SN - 0013-936X
VL - 50
SP - 3425
EP - 3434
JO - Environmental Science & Technology
JF - Environmental Science & Technology
IS - 7
ER -