Abstract
Naturally occurring radionuclides (NORN) such as 40K, 226Ra and 232Th from 44 surface sediment samples collected from four desert regions of Chinese were determined to investigate the regional characteristics of the source areas of Asian dust. The radionuclides for 41 surface sediment samples collected from seven sites of the Keum River area in Korea were also determined to compare the regional characteristics with the Chinese desert area. The specific activities (SA) and the specific activity ratios (SAR) of the radionuclides were investigated for distinguishing the source region of Asian dust. The SA of 226Ra and 232Th as well as the SAR of 226Ra/40K and 232Th/40K were found to be useful to characterize source area and tracing Asian dust.
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Acknowledgments
This research was supported by the basic research project of the Korea Institute of Geoscience and Mineral Resources funded by the Ministry of Knowledge Economy of Korea.
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Lee, K.Y., Yoon, Y.Y., Cho, S.Y. et al. Regional characteristics of naturally occurring radionuclides in surface sediments of Chinese deserts and the Keum River area of Korea. J Radioanal Nucl Chem 281, 287–290 (2009). https://doi.org/10.1007/s10967-009-0099-2
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DOI: https://doi.org/10.1007/s10967-009-0099-2