Natural Radionuclide of 230Th in Malaysian Harbor Sediments

  • Abdul Hafidz Yusoff et al.

Abstract

The activities of detrital 230Th (230Thdet) and excess 230Th (230Thex) were determined in surface sediment (0-20 cm) collected at eight harbors areas covering the Malacca Straits, southern South China Sea (SCS) and southeast SCS to calculate unsupported inventory and flux of 230Th.  The average inventories and fluxes of 230Thex ranged from 1.10 x 103 Bq/cm2 to 1.66 x 103 Bq/cm2 and 10.50 x 10-3 Bq/cm2/yr to 15.84 x 10-3 Bq/cm2/yr, respectively. Highest average inventories and fluxes of unsupported 230Th have been detected at southeast SCS, follow by southern SCS and Malacca Straits might be due to much water containing huge suspended particles rich with 230Th flow at southeast SCS from western Pacific. Southeast SCS harbor was also classified as high productivity area of 230Th, whereas southern SCS and Malacca Straits harbors were classified moderate and low productivity areas, respectively

Published
2019-12-22
How to Cite
et al., A. H. Y. (2019). Natural Radionuclide of 230Th in Malaysian Harbor Sediments. International Journal of Advanced Science and Technology, 28(18), 65 - 71. Retrieved from http://sersc.org/journals/index.php/IJAST/article/view/2278