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A new method to discriminate secondary organic aerosols from different sources using high-resolution aerosol mass spectra

by M. F. Heringa, P. F. Decarlo, R. Chirico, T. Tritscher, M. Clairotte, C. Mohr, M. Crippa, J. G. Slowik, L. Pfaffenberger, J. Dommen, E. Weingartner, A. S. H. Prévôt, U. Baltensperger show all authors
Atmos. Chem. Phys ()
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Abstract

Organic aerosol (OA) represents a significant and often major fraction of the non-refractory PM1 (particulate matter with an aerodynamic diameter da < 1 μm) mass. Secondary organic aerosol (SOA) is an important contributor to the OA and can be formed from biogenic and anthropogenic precursors. Here we present results from the characterization of SOA produced from the emissions of three different anthropogenic sources. SOA from a log wood burner, a Euro 2 diesel car and a two-stroke Euro 2 scooter were characterized with an Aerodyne high-resolution time-of-flight aerosol mass spectrometer (HR-TOF-AMS) and compared to SOA from α-pinene.

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