Title
Geophysical applicability of aerosol size distribution measurements using cascade impactors and proton-induced X-ray-emission Geophysical applicability of aerosol size distribution measurements using cascade impactors and proton-induced X-ray-emission
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Oxford ,
Subject
Chemistry
Source (journal)
Atmospheric environment : an international journal. - Oxford, 1994, currens
Volume/pages
10(1976) :8 , p. 571-576
ISSN
1352-2310
ISI
A1976BZ75500001
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Proton Induced X-ray Emission, (PIXE), is capable of high precision analysis for trace element components of aerosol particle size fractions sampled by cascade impactor. A statistical evaluation of data quality has been carried out in order to distinguish between analytical uncertainties in the PIXE procedure, errors caused by cascade impactor performance and by other factors in the sampling procedure, and geophysical causes of differences in composition and particle size distributions of the elements in aerosols. Replicate analyses and simultaneous samplings taken in north Florida and St. Louis have been used for the data evaluation. In addition to the analytical error the sampling procedure contributes an error of ~ 10% to be added quadratically. The resulting precision is sufficient to evaluate the data in geophysical terms. This is illustrated by means of sample sets taken simultaneously in an urban, forest and coastal environment of the same region.
E-info
https://repository.uantwerpen.be/docman/iruaauth/5fbee7/2816556.pdf
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