Document Detail


Determination of multi-element profiles of soil using energy dispersive X-ray fluorescence (EDXRF).
MedLine Citation:
PMID:  12150288     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
The source profile for soil in Hong Kong is important both for determination of the main air pollutant source in Hong Kong and for assessment of the impact of Asian dust storms on Hong Kong. Soil associated with different rock types have been sampled, and the concentrations of 19 chemical elements, Na, Al, Si, Ti, V, Cr, Mn, Fe, Co, K, Ca, Ni, Cu, Zn, Pb, Rb, Sr, Y and Zr, have been determined using energy dispersive X-ray fluorescence. A profile for the average soil for Hong Kong has been determined by taking average values for the different soil categories. The values for the Hong Kong soil are commensurate with values for rural soil derived by other workers, except that Hong Kong soil has much lower Fe and Ca concentrations. The abundance of Al, Ca and Fe in the average Hong Kong soil are 9.23%, 0.11% and 0.85%. We conclude that Ca provides a good marker element for identifying dust episodes in Hong Kong while Al does not.
Authors:
K N Yu; Z L L Yeung; L Y L Lee; M J Stokes; R C W Kwok
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine     Volume:  57     ISSN:  0969-8043     ISO Abbreviation:  Appl Radiat Isot     Publication Date:  2002 Aug 
Date Detail:
Created Date:  2002-08-01     Completed Date:  2002-08-26     Revised Date:  2003-11-03    
Medline Journal Info:
Nlm Unique ID:  9306253     Medline TA:  Appl Radiat Isot     Country:  England    
Other Details:
Languages:  eng     Pagination:  279-84     Citation Subset:  -    
Affiliation:
Department of Physics and Materials Science, City University of Hong Kong, Kowloon. peter.yu@cityu.edu.hk
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