Penentuan Kepekatan Aktiviti Radionuklid Tabii 232th, 238u dan 40k dalam Ikan di Pesisiran Pantai Terengganu, Malaysia

Abstract

Kajian ini menyimpulkan bahawa dos yang diterima oleh penduduk setempat hasil daripada pengambilan ikan agak rendah dan tidak membahayakan kesihatan manusia dan selamat untuk dimakan. Kata kunci: Dos dedahan dalaman; kepekatan aktiviti; radionuklid tabii; risiko kanser; spektrometri jisim-plasma gandingan teraruh

Analysis of natural occurring radionuclide activity concentration of fish in west coast waters of Sabah, Malaysia

“…The prepared samples, in the form of solutions, were subjected to analysis using Inductive Coupled Plasma-Mass Spectrometry (ICP-MS), which was calibrated using the standard reference material (SRM MA-A-2 (TM) Fish Flesh Homogenate) as per the methodologies described by and Rosli et al (2018) [3,4]. To ensure accurate measurements and eliminate variations arising from differences in moisture content within organisms, the heavy metal concentrations in the tissues were calculated based on their dry weights.…”

“…It is well-documented that human activities, such as the combustion of fossil fuels in coal-fired power plants, natural gas and oil extraction, mining, and ore processing, as well as the manufacturing of these fuels, contribute to the enrichment of heavy metals and naturally occurring radioactivity within aquatic ecosystems. Additional anthropogenic sources encompass the reprocessing of spent nuclear fuel, underwater nuclear device testing, accidents at nuclear power plants, and the disposal of hazardous and radioactive materials post-nuclear operations [3][4][5][6]. Given that uranium and thorium radionuclides primarily enter the human body through food consumption, with a minor contribution from respiration, comprehending the decay sequence of these radionuclides is of paramount importance [7].…”

“…The distribution of radionuclides in seafood exhibits variability dependent on dietary habits and geographical origin [4,[13][14]. Fish and seafood represent substantial protein sources in many developing country and feature prominently in diets across various global regions [15].…”

“…Malaysia and Indonesia, in particular, stands out as one of Southeast Asia's top consumers of seafood, both in terms of total consumption and protein content per capita [16]. Given this high consumption of fish, it becomes evident that information regarding the radionuclide balance in fish holds correspondingly high value of knowledge [4,17]. The current literature and research lacks on comprehensive data on the bioaccumulation and distribution of natural radionuclides in marine fish and seawater.…”

Investigation of the Effect of Hydrothermal Waters on Radionuclide Activity Concentrations in Natural Marble with Multivariate Statistical Analysis

“…Moreover, the presence of other minerals in marble gives it a variety of attractive colors [9]. Therefore, it is important to examine the mineralogical, physical, and chemical concentrations of the samples when conducting radiation studies on them [19][20][21][22]. Radionuclide concentrations, the radiological hazard parameters obtained from them, and the results of chemical analysis can be examined using multivariate statistical analyses.…”