Articles | Volume 8, issue 6
Atmos. Meas. Tech., 8, 2555–2576, 2015
https://doi.org/10.5194/amt-8-2555-2015
Atmos. Meas. Tech., 8, 2555–2576, 2015
https://doi.org/10.5194/amt-8-2555-2015

Research article 24 Jun 2015

Research article | 24 Jun 2015

ACTRIS ACSM intercomparison – Part 2: Intercomparison of ME-2 organic source apportionment results from 15 individual, co-located aerosol mass spectrometers

R. Fröhlich et al.

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Short summary
Source apportionment (SA) of organic aerosol mass spectrometric data measured with the Aerodyne ACSM using PMF/ME2 is a frequently used technique in the AMS/ACSM community. ME2 uncertainties due to instrument-to-instrument variations are elucidated by performing SA on ambient data from 14 individual, co-located ACSMs, recorded during the first ACTRIS ACSM intercomparison study at SIRTA near Paris (France). The mean uncertainty was 17.2%. Recommendations for future studies using ME2 are provided.