TY - JOUR
T1 - Determination of multi-element profiles of soil using energy dispersive X-ray fluorescence (EDXRF)
AU - Yu, K. N.
AU - Yeung, Z. L L
AU - Lee, L. Y L
AU - Stokes, M. J.
AU - Kwok, R. C W
PY - 2002
Y1 - 2002
N2 - 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. © 2002 Elsevier Science Ltd. All rights reserved.
AB - 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. © 2002 Elsevier Science Ltd. All rights reserved.
KW - EDXRF
KW - Principal-component analysis
KW - Soils
UR - http://www.scopus.com/inward/record.url?scp=0036274022&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0036274022&origin=recordpage
U2 - 10.1016/S0969-8043(02)00092-1
DO - 10.1016/S0969-8043(02)00092-1
M3 - RGC 21 - Publication in refereed journal
C2 - 12150288
SN - 0969-8043
VL - 57
SP - 279
EP - 284
JO - Applied Radiation and Isotopes
JF - Applied Radiation and Isotopes
IS - 2
ER -