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Application of Proton Induced X-Ray Emission Analysis to the St. Louis Regional Air Pollution Study

Published online by Cambridge University Press:  06 March 2019

R. Akselsson ,
C. Orsini ,
D. L. Meinert ,
T. B. Johansson ,
R. E. Van Grieken ,
H. C. Kaufmann ,
K. R. Chapman ,
J. W. Nelson  and
J. W. Winchester
R. Akselsson
Affiliation:
Departments of Oceanography, Florida State University, Tallahassee, Florida 32306.
C. Orsini
Affiliation:
Departments of Oceanography, Florida State University, Tallahassee, Florida 32306. Departments of Physics, Florida State University, Tallahassee, Florida 32306.
D. L. Meinert
Affiliation:
Departments of Oceanography, Florida State University, Tallahassee, Florida 32306.
T. B. Johansson
Affiliation:
Departments of Oceanography, Florida State University, Tallahassee, Florida 32306. Dept. of Environmental Hygiene Box 2009, 5-220 02 Lund 2, Sweden
R. E. Van Grieken
Affiliation:
Departments of Oceanography, Florida State University, Tallahassee, Florida 32306. Dept. of Chemistry, Antwerp University (U. I . A.), B-2610 Wilrijk, Belgium.
H. C. Kaufmann
Affiliation:
Departments of Oceanography, Florida State University, Tallahassee, Florida 32306.
K. R. Chapman
Affiliation:
Departments of Physics, Florida State University, Tallahassee, Florida 32306.
J. W. Nelson
Affiliation:
Departments of Physics, Florida State University, Tallahassee, Florida 32306.
J. W. Winchester
Affiliation:
Departments of Oceanography, Florida State University, Tallahassee, Florida 32306.
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Abstract

The St. Louis aerosol was sampled during the period 16-22 August 1973 simultaneously at two locations using cascade impactors for sequential 12-hour samples. The six particle size fractions of each sampling were individually analyzed using PIXE for elements from S to Br and beyond and for heavy elements including Pb which permitted time variations of concentrations and particle size distributions to be followed and related to meteorological changes during the sampling period. In addition, the data were compared with average levels of the elements in coastal north Florida and maritime Bermuda as well as at a third St. Louis site. From this it appeared that some of the concentrations in St. Louis were at natural levels whereas others appeared to be higher and linked to air pollution sources. These relationships and others in this study may lead to criteria for distinguishing between pollutants and natural background in urban aerosols.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 18: Twenty-Third Annual Conference on Applications of X-ray Analysis, August 7-9, 1974 , 1974 , pp. 588 - 597
Copyright
Copyright © International Centre for Diffraction Data 1974

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References

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