Please use this identifier to cite or link to this item:
http://hdl.handle.net/10261/218665
Share/Export:
![]() ![]() |
|
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Title: | ACTRIS ACSM intercomparison - Part 2: Intercomparison of ME-2 organic source apportionment results from 15 individual, co-located aerosol mass spectrometers |
Authors: | Fröhlich, R.; Crenn, V.; Setyan, A.; Belis, C.A.; Canonaco, F.; Favez, O.; Riffault, V.; Slowik, J.G.; Aas, W.; Äijälä, M.; Alastuey, Andrés CSIC ORCID; Artíñano, Begoña CSIC ORCID; Bonnaire, N.; Bozzetti, C.; Bressi, M.; Carbone, C.; Coz, Esther CSIC ORCID; Croteau, P.L.; Cubison, M.J.; Esser-Gietl, J.K.; Green, D.C.; Gros, V.; Heikkinen, L.; Herrmann, Hartmut; Jayne, J.T.; Lunder, C.R.; Minguillón, María Cruz CSIC ORCID ; MoÄnik, G.; O'Dowd, Colin D.; Ovadnevaite, Jurgita; Petralia, E.; Poulain, L.; Priestman, M.; Ripoll, A.; Sarda-Estève, R.; Wiedensohler, A.; Baltensperger, U.; Sciare, J.; Prévôt, André S. H. | Issue Date: | 2015 | Citation: | Atmospheric Measurement Techniques 8: 2555- 2576 (2015) | Abstract: | © Author(s) 2015. Chemically resolved atmospheric aerosol data sets from the largest intercomparison of the Aerodyne aerosol chemical speciation monitors (ACSMs) performed to date were collected at the French atmospheric supersite SIRTA. In total 13 quadrupole ACSMs (Q-ACSM) from the European ACTRIS ACSM network, one time-of-flight ACSM (ToF-ACSM), and one high-resolution ToF aerosol mass spectrometer (AMS) were operated in parallel for about 3 weeks in November and December∼2013. Part 1 of this study reports on the accuracy and precision of the instruments for all the measured species. In this work we report on the intercomparison of organic components and the results from factor analysis source apportionment by positive matrix factorisation (PMF) utilising the multilinear engine 2 (ME-2). Except for the organic contribution of mass-to-charge ratio m/z 44 to the total organics (f<inf>44</inf>), which varied by factors between 0.6 and 1.3 compared to the mean, the peaks in the organic mass spectra were similar among instruments. The m/z 44 differences in the spectra resulted in a variable f<inf>44</inf> in the source profiles extracted by ME-2, but had only a minor influence on the extracted mass contributions of the sources. The presented source apportionment yielded four factors for all 15 instruments: hydrocarbon-like organic aerosol (HOA), cooking-related organic aerosol (COA), biomass burning-related organic aerosol (BBOA) and secondary oxygenated organic aerosol (OOA). ME-2 boundary conditions (profile constraints) were optimised individually by means of correlation to external data in order to achieve equivalent / comparable solutions for all ACSM instruments and the results are discussed together with the investigation of the influence of alternative anchors (reference profiles). A comparison of the ME-2 source apportionment output of all 15 instruments resulted in relative standard deviations (SD) from the mean between 13.7 and 22.7 % of the source's average mass contribution depending on the factors (HOA: 14.3 ± 2.2 %, COA: 15.0 ± 3.4 %, OOA: 41.5 ± 5.7 %, BBOA: 29.3 ± 5.0 %). Factors which tend to be subject to minor factor mixing (in this case COA) have higher relative uncertainties than factors which are recognised more readily like the OOA. Averaged over all factors and instruments the relative first SD from the mean of a source extracted with ME-2 was 17.2 %. | Publisher version (URL): | http://dx.doi.org/10.5194/amt-8-2555-2015 | URI: | http://hdl.handle.net/10261/218665 | DOI: | 10.5194/amt-8-2555-2015 | Identifiers: | doi: 10.5194/amt-8-2555-2015 issn: 1867-8548 |
Appears in Collections: | (IDAEA) Artículos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
amt-8-2555-2015.pdf | 932,87 kB | Adobe PDF | ![]() View/Open |
Review this work
SCOPUSTM
Citations
99
checked on Jan 30, 2023
WEB OF SCIENCETM
Citations
96
checked on Feb 1, 2023
Page view(s)
179
checked on Feb 2, 2023
Download(s)
143
checked on Feb 2, 2023
Google ScholarTM
Check
Altmetric
Altmetric
WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.