Articles | Volume 8, issue 12
Atmos. Meas. Tech., 8, 5063–5087, 2015
https://doi.org/10.5194/amt-8-5063-2015
Atmos. Meas. Tech., 8, 5063–5087, 2015
https://doi.org/10.5194/amt-8-5063-2015

Research article 02 Dec 2015

Research article | 02 Dec 2015

ACTRIS ACSM intercomparison – Part 1: Reproducibility of concentration and fragment results from 13 individual Quadrupole Aerosol Chemical Speciation Monitors (Q-ACSM) and consistency with co-located instruments

V. Crenn et al.

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Short summary
A large intercomparison study of 13 Q-ACSM was conducted for a 3-week period in the region of Paris to evaluate the performance of this instrument and to monitor the major NR-PM1 chemical components. Reproducibility expanded uncertainties of Q-ACSM concentration measurements were found to be 9, 15, 19, 28, and 36% for NR-PM1, NO3, OM, SO4, and NH4, respectively. Some recommendations regarding best calibration practices, standardized data processing and data treatment are also provided.