The diffusion charging sensor (DC), photoelectric aerosol sensor (PAS) and condensation particle counter (CPC) are real-time particle instruments that have time resolutions <10s and are suitable for field use. This paper shows how the relative fraction of nuclei mode particles (D≤50nm) in ambient combustion aerosols can be determined, along with the coverage degree of the respective accumulation mode particles with a modal diameter of ∼100nm. Main tools for interpretation are the diameter of average surface DAve,S (obtained from CPC and DC measurements) and PAS/DC versus DAve,S scatter plots. Compared to the scanning mobility particle sizer (SMPS), which is a standard instrument for aerosol particle size distribution measurements, the presented method has a limited accuracy, but is substantially faster. Additionally, it is experimentally less demanding than SMPS measurements, especially for field applications. Copyright © 2002 Elsevier Science Ltd.
CITATION STYLE
Bukowiecki, N., Kittelson, D. B., Watts, W. F., Burtscher, H., Weingartner, E., & Baltensperger, U. (2002). Real-time characterization of ultrafine and accumulation mode particles in ambient combustion aerosols. Journal of Aerosol Science, 33(8), 1139–1154. https://doi.org/10.1016/S0021-8502(02)00063-0
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