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Understanding atmospheric aerosol particles with improved particle identification and quantification by single-particle mass spectrometry

Shen, Xiaoli; Saathoff, Harald; Huang, Wei; Mohr, Claudia; Ramisetty, Ramakrishna; Leisner, Thomas

Abstract:
Single-particle mass spectrometry (SPMS) is a widely used tool to determine chemical composition and mixing state of aerosol particles in the atmosphere. During a 6-week field campaign in summer 2016 at a rural site in the upper Rhine valley, near the city of Karlsruhe in southwest Germany, ∼3.7×10$^{5}$ single particles were analysed using a laser ablation aerosol particle time-of-flight mass spectrometer (LAAPTOF). Combining fuzzy classification, marker peaks, typical peak ratios, and laboratory-based reference spectra, seven major particle classes were identified. With the precise particle identification and well-characterized laboratory-derived overall detection efficiency (ODE) for this instrument, particle similarity can be transferred into corrected number and mass fractions without the need of a reference instrument in the field. Considering the entire measurement period, aged-biomass-burning and soil-dust-like particles dominated the particle number (45.0 % number fraction) and mass (31.8 % mass fraction); sodium-salt-like particles were the second lowest in number (3.4 %) but the second dominating class in terms of particle mass (30.1 %). ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000094698
Veröffentlicht am 07.06.2019
Originalveröffentlichung
DOI: 10.5194/amt-12-2219-2019
Scopus
Zitationen: 3
Web of Science
Zitationen: 3
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Geographie und Geoökologie (IFGG)
Institut für Meteorologie und Klimaforschung - Atmosphärische Aerosolforschung (IMK-AAF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 1867-1381, 1867-8548
KITopen-ID: 1000094698
HGF-Programm 12.03.03 (POF III, LK 01)
Gas to particle conversion
Erschienen in Atmospheric measurement techniques
Band 12
Heft 4
Seiten 2219-2240
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Nachgewiesen in Scopus
Web of Science
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