DOSE ASSESSMENT IN ANABAS TESTUDINEUS AFFECTED FROM EXPOSURE OF WATERBORNE Th-232

  • Zal U'yun Wan Mahmood
  • Nita Salina Abu Bakar
  • Mohamad Noh Sawon
  • Khairul Nizam Razali
  • Mohd Tarmizi Ishak
  • Norfaizal Mohamed@Muhammad
  • Yii Mei Wo
  • Abdul Kadir Ishak

Abstract

Results of the bioaccumulation study and dose assessment of Th-232 in whole-body Anabas testudineus are presented. The objective of this study was to evaluate the effect of Th-232 concentration activity on the laboratory bioaccumulation and total dose rate in Anabas testudineus. Anabas testudineus adults were exposed to different waterborne Th-232 levels: 0 Bq/L (control), 50 Bq/L and 100 Bq/L for 30 day (uptake phase). Whole-body uptakes of Th-232 in Anabas testudineus were calculated and total dose rates using ERICA Assessment Tool were also estimated. The results showed the increase of waterborne Th-232 concentration corresponded to a progressive increase of Th-232 accumulation and total dose rate (internal and external) in whole-body Anabas testudineus. Considering the ERICA dose rate screening value of 10 µGy/h, the findings can be concluded the estimated of total dose rate (0.38 – 1.29 µGy/h) in Anabas testudineus was in order of small magnitude. Nevertheless, these results showed that the Anabas testudineus has a potential to accumulate thorium.

Published
2016-06-30
How to Cite
WAN MAHMOOD, Zal U'yun et al. DOSE ASSESSMENT IN ANABAS TESTUDINEUS AFFECTED FROM EXPOSURE OF WATERBORNE Th-232. Jurnal Sains Nuklear Malaysia, [S.l.], v. 28, n. 2, p. 1-10, june 2016. ISSN 2232-0946. Available at: <https://jsnm.nuclearmalaysia.gov.my/index.php/jsnm/article/view/37>. Date accessed: 24 sep. 2021.