Yue Lin1,2, Liem Pham1,2, Xiaoliang Wang3, Roya Bahreini4, Heejung S. Jung This email address is being protected from spambots. You need JavaScript enabled to view it.1,2 1 Department of Mechanical Engineering, University of California Riverside, CA 92521, USA
2 CE-CERT (College of Engineering-Center for Environmental Research and Technology), University of California, Riverside, CA 92507, USA
3 Desert Research Institute, Reno, NV 89512, USA
4 Department of Environmental Science, University of California Riverside, CA 92521, USA
Received:
August 17, 2020
Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.
Revised:
January 5, 2021
Accepted:
January 9, 2021
Download Citation:
||https://doi.org/10.4209/aaqr.200525
Lin, Y, Pham, L., Wang, X., Bahreini, R., Jung, H.S. (2021). Evaluation of Fast Mobility Particle Sizer (FMPS) for Ambient Aerosol Measurement. Aerosol Air Qual. Res. 21, 200525. https://doi.org/10.4209/aaqr.200525
Cite this article:
Fast Mobility Particle Sizer (FMPS) size distribution measurements with different inversion matrices were compared with the Scanning Mobility Particle Sizer (SMPS) for ambient aerosols sampled from a background location in Riverside, CA in this study. The FMPS-compact matrix showed the best agreement with SMPS for particle concentration in the size ranges of 9–359 nm and 9–100 nm (for ultrafine particles). The FMPS-compact matrix also showed the best agreement with the SMPS for mode diameter. All FMPS inversion matrices showed size-dependent discrepancies compared with the SMPS. Measurement of the non-volatile fraction of ambient aerosol downstream of a catalytic stripper showed that the FMPS-compact matrix agreed best with the SMPS with the FMPS over SMPS linear regression slope of 0.99–1.00 for particle concentrations. This is likely due to the restructuring of soot during the removal of volatile coating. This study showed that the soot and compact matrices are insufficient for ambient aerosol measurement. Challenges remain for FMPS measurements when particle morphologies are not known a priori or when they are different from near spherical shape or aggregate structure.HIGHLIGHTS
ABSTRACT
Keywords:
Particle size distribution, Inversion matrix, Ambient particles, Fractal dimension, Fast Mobility Particle Sizer
