Trace Elements of Fine Ambient Particulate in Korea by using an Instrumental Neutron Activation Analysis

概要

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In this study, using instrumental neutron activation analysis we undertook the measurement of about 30 elements in airborne PM 2.5 samples at an urban area of Daejeon city located in the southwestern region of Korea. An inspection of our measurement data indicated that the distribution patterns of the elements were clearly distinguished among the elements with their concentrations ranging over four orders of magnitude. The means for Lu and Dy were found to be the lowest at values of 0.01 and 0.04 ng m^<-3>, while those for K and Fe showed the highest values of 671 and 653 ng m^<-3>, respectively. The results of the FA analysis indicate that there are no more than six factors with a statistical significance, which appeared to play roles in regulating the elemental concentration levels in the area. These six factors can cover as much as 82.6 % of the total variance. Enrichment factor analysis supports an explicit interpretation of the results found by this factor analysis.
放射化分析研究会の論文