Fitting Multimodal Lognormal Size Distributions to Cascade Impactor Data
Open Access
- 1 January 1990
- journal article
- research article
- Published by Taylor & Francis in Aerosol Science and Technology
- Vol. 13 (2) , 144-150
- https://doi.org/10.1080/02786829008959432
Abstract
A procedure is described for fitting multimodal lognormal size distributions to cascade impactor data. The method was applied to published cascade impactor measurements for ammonium and nitrate that were previously analyzed by procedures that do not assume a functional form for the size distribution. An evaluation of the lognormal fitting procedure by Monte Carlo simulations demonstrated that unbiased parameters and reliable estimates of their uncertainties require correct specifications of measurement precision and impactor characteristics.Keywords
This publication has 6 references indexed in Scilit:
- Characteristics of the Berner Impactor for Sampling Inorganic IonsAerosol Science and Technology, 1988
- Improving Twomey's Algorithm for Inversion of Aerosol Measurement DataAerosol Science and Technology, 1987
- Size Distributions of Species in Fine Particles in Denver Using a Microorifice ImpactorAerosol Science and Technology, 1987
- A New Algorithm for Inversion of Aerosol Size Distribution DataAerosol Science and Technology, 1982
- The size distribution of the urban aerosol in ViennaScience of The Total Environment, 1979
- Comparison of constrained linear inversion and an iterative nonlinear algorithm applied to the indirect estimation of particle size distributionsJournal of Computational Physics, 1975