Journal article
A Comparison of Cascade Impactor Data Reduction Methods
Aerosol science and technology, Vol.37(2), pp.187-200
02/01/2003
DOI: 10.1080/02786820300956
Abstract
The mass median aerodynamic diameter, d g , and geometric standard deviation, σ g , of an aerosol is typically determined from a reduction of data obtained with a cascade impactor under the simplifying assumption that each stage of the impactor has an ideal collection efficiency. Two such reduction techniques are described and compared to an "inversion" method that incorporates the actual collection efficiencies of an impactor. Theoretical comparisons were made to demonstrate the difference in the estimate of d g and σ g between the 2 ideal reduction methods and the inversion technique. Results indicated that, in general, both d g and σ g are overestimated when the collection efficiencies are assumed to be ideal. A spreadsheet application of the inversion method is described.
Details
- Title: Subtitle
- A Comparison of Cascade Impactor Data Reduction Methods
- Creators
- Patrick T O'Shaughnessy - Department of Occupational and Environmental Health , The University of IowaOtto G Raabe - Center for Health and the Environment , University of California
- Resource Type
- Journal article
- Publication Details
- Aerosol science and technology, Vol.37(2), pp.187-200
- Publisher
- Taylor & Francis Group
- DOI
- 10.1080/02786820300956
- ISSN
- 0278-6826
- eISSN
- 1521-7388
- Language
- English
- Date published
- 02/01/2003
- Academic Unit
- Occupational and Environmental Health; Civil and Environmental Engineering
- Record Identifier
- 9984214724702771
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